# Wavtron — Full Site Content Wavtron is an Indian electronics retailer specializing in genuine ESP32 dev boards, LoRa modules, sensors, motors, relays, IoT components, and Arduino-compatible kits. Same-day dispatch, full datasheets, engineering support. Site: https://www.wavtron.in ## Categories ### Circuit Protection Subcategories: Zener Diode, Thermistors, PTC Resettable Fuses URL: https://www.wavtron.in/categories/circuit-protection ### Motors & Accessories Subcategories: Servo Motors URL: https://www.wavtron.in/categories/motors-accessories ### Connectors Subcategories: Terminal Blocks, PCB Mountable URL: https://www.wavtron.in/categories/connectors ### IC Subcategories: Microcontroller, optocoupler URL: https://www.wavtron.in/categories/ic ### Development Boards Subcategories: Wireless, Microcontroller Boards URL: https://www.wavtron.in/categories/development-boards ### Electronics component Subcategories: Capacitor, Transistor, Led, Diode URL: https://www.wavtron.in/categories/electronics-component ### Electromechanical Subcategories: Relay Modules, Relays, Cooling FAN, DC DC Converter URL: https://www.wavtron.in/categories/electromechanical ### Accessories Subcategories: Multimeter URL: https://www.wavtron.in/categories/accessories ### RF Wireless Subcategories: Lora, WiFi URL: https://www.wavtron.in/categories/rf-wireless ## Products ### EL817C optocoupler SOP-4 TH EL817C Optocoupler is a reliable and compact isolation component designed to provide electrical separation between input and output circuits. Category: optocoupler Price: INR 4.00 SKU: WV-13912 URL: https://www.wavtron.in/products/el817c-optocoupler-sop-4-th ### MMBT2222A-TP SMD Manufacturer Name : MCC \n \nSMD DC-2134 \nBipolar Transistors - BJT 40V \nTransistor Polarity: NPN Brand: MCC Category: Transistor Price: INR 2.50 SKU: WV-14015 URL: https://www.wavtron.in/products/mmbt2222a-tp-smd ### Ra-01SCH-P LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 375.50 SKU: WV-13862 URL: https://www.wavtron.in/products/ra-01sch-p-lora-module ### Ra-01SCH LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 260.35 SKU: WV-13857 URL: https://www.wavtron.in/products/ra-01sch-lora-module ### Ra-01SH LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 386.61 SKU: WV-13855 URL: https://www.wavtron.in/products/ra-01sh-lora-module ### ESP32-S3-WROOM-1-N16R2 Espressif Brand: Espressif Systems Category: WiFi Price: INR 400.00 SKU: WV-13843 URL: https://www.wavtron.in/products/esp32-s3-wroom-1-n16r2-espressif ### ESP32-WROOM-32E-N8 MODULES Brand: Espressif Systems Category: WiFi Price: INR 320.00 SKU: WV-13838 URL: https://www.wavtron.in/products/esp32-wroom-32e-n8-modules ### UT890D+ Multimeter - UNI-T Manufacturer Name : UNI-T Brand: UNI-T Category: Multimeter Price: INR 1700.00 SKU: WV-13908 URL: https://www.wavtron.in/products/ut890d-multimeter-uni-t ### Ra-08H LoRaWAN module Ra-08(H) is an LoRa module designed and developed by Shenzhen Ai-Thinker Technology Co., Ltd. Brand: Ai-Thinker Category: Lora Price: INR 457.00 SKU: WV-13896 URL: https://www.wavtron.in/products/ra-08h-lorawan-module ### LM2576 DC-DC 12V 24V to 5V DC Buck module Manufacturer Name : Wavtron \n \nLM2596 DC Power Supply Step-down Module \nInput: 5-30V \nOutput: 5V Brand: Wavtron Category: DC DC Converter Price: INR 115.00 SKU: WV-13850 URL: https://www.wavtron.in/products/lm2576-dc-dc-12v-24v-to-5v-dc-buck-module ### ESP32-ETHERNET-KIT-VE Manufacturer Name : Espressif Systems \n \nESP32-ETHERNET-KIT-VE Brand: Tower pro Category: Wireless Price: INR 5500.00 SKU: WV-13847 URL: https://www.wavtron.in/products/esp32-ethernet-kit-ve ### 12V 30A T90 Relay board 1 channel Manufacturer Name : Wavtron Brand: Wavtron Category: Relay Modules Price: INR 105.00 SKU: WV-13849 URL: https://www.wavtron.in/products/12v-30a-t90-relay-board-1-channel ### Ra-03SCH LoRa module Manufacturer Name : Ai-Thinker Brand: Original Category: Lora Price: INR 300.00 SKU: WV-13858 URL: https://www.wavtron.in/products/ra-03sch-lora-module ### ESP32-S3-WROOM-1-N16R8 Espressif Brand: Espressif Systems Category: WiFi Price: INR 450.00 SKU: WV-13844 URL: https://www.wavtron.in/products/esp32-s3-wroom-1-n16r8-espressif ### Rexnord Cooling Fan 4 Inch REC 12038 A 24W 4"24VDC Manufacturer Name : Rexnord Brand: Rexnord Category: Cooling FAN Price: INR 370.00 SKU: WV-13914 URL: https://www.wavtron.in/products/rexnord-cooling-fan-4-inch-rec-12038-a-24w-424vdc ### Ra-01H LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 570.85 SKU: WV-13853 URL: https://www.wavtron.in/products/ra-01h-lora-module ### Ra-02 LoRa module Ai-Thinker - Ra-02 LoRa Module is a high-performance wireless communication module based on the SX1278 LoRa transceiver, designed for long-range, low-power data transmission. It operates in the 433 MHz frequency band, making it ideal for IoT applications that require reliable communication over several kilometers. Brand: Ai-Thinker Category: Lora Price: INR 466.11 SKU: WV-13852 URL: https://www.wavtron.in/products/ra-02-lora-module ### ESP32-WROVER-KIT-VE (Dev Board) Espressif EVAL BOARD FOR ESP32-WROVER\nESP32-WROVER-E WiFi, Bluetooth® Smart Ready 4.x Dual Mode (BLE) RF (Transceiver) 2.4GHz Evaluation Board Brand: Espressif Systems Category: Wireless Price: INR 3800.00 SKU: WV-13846 URL: https://www.wavtron.in/products/esp32-wrover-kit-ve-dev-board ### ESP32-S3-DEVKITC-1-N32R16V ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, ESP32-S3-\nWROOM-1U, or ESP32-S3-WROOM-2, a general-purpose Wi-Fi + Bluetooth® Low Energy MCU module that integrates complete Wi-Fi and Bluetooth Low Energy functions. Brand: Espressif Systems Category: Wireless Price: INR 2100.00 SKU: WV-13842 URL: https://www.wavtron.in/products/esp32-s3-devkitc-1-n32r16v ### ESP32-C3-DEVKITM-1-N4X (Dev Board) Espressif ENTRY-LEVEL DEVELOPMENT BOARD Brand: Espressif Systems Category: Wireless Price: INR 1550.00 SKU: WV-13840 URL: https://www.wavtron.in/products/esp32-c3-devkitm-1-n4x-dev-board ### Ra-09-DTU LoRa Module Ai-Thinker Ultra-long distance transmission Brand: Original Category: Wireless Price: INR 3150.00 SKU: WV-13901 URL: https://www.wavtron.in/products/ra-09-dtu-lora-module ### RA-08-KIT LoRaWAN module Ai-Thinker ASR6601, Ra-08 - LoRa® (LoRaWAN®) Transceiver 410MHz ~ 525MHz Evaluation Board Brand: Original Category: Wireless Price: INR 1150.00 SKU: WV-13899 URL: https://www.wavtron.in/products/ra-08-kit-lorawan-module ### Ra-09(New) LoRaWAN module Ai-Thinker IPEX interface -140dBm 4.8km SMD,18x18mm RF Transceiver Modules and Modems RoHS Brand: Original Category: Lora Price: INR 650.00 SKU: WV-13897 URL: https://www.wavtron.in/products/ra-09-new-lorawan-module ### 10uF 35V 10% SMD TANTALUM Manufacturer Name : AVX KYOCERA \n \nAVX DC-2115 B Case \nCapacitance value is 10µF with ±20% tolerance \nVoltage(DC) is 35V Brand: AVX KYOCERA Category: Capacitor Price: INR 10.00 SKU: WV-14023 URL: https://www.wavtron.in/products/10uf-35v-10-smd-tantalum ### Rexnord Cooling Fan 4 Inch REC 22038 A2 W FAN 4" 230VAC Manufacturer Name : Rexnord Brand: Rexnord Category: Cooling FAN Price: INR 300.00 SKU: WV-13915 URL: https://www.wavtron.in/products/rexnord-cooling-fan-4-inch-rec-22038-a2-w-fan-4-230vac ### Ra-05U LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 375.00 SKU: WV-13894 URL: https://www.wavtron.in/products/ra-05u-lora-module ### Ra-05 LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 367.50 SKU: WV-13863 URL: https://www.wavtron.in/products/ra-05-lora-module ### Ra-01SC-P LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: RF Wireless Price: INR 355.70 SKU: WV-13861 URL: https://www.wavtron.in/products/ra-01sc-p-lora-module ### RXE250 PTC Tyco RXE250 PTC Resettable Fuse is a reliable overcurrent protection device designed to safeguard electronic circuits from excessive current. Using Positive Temperature Coefficient (PTC) technology, it automatically increases resistance during fault conditions and resets once the fault is removed, eliminating the need for replacement. Category: PTC Resettable Fuses Price: INR 10.00 SKU: WV-04004 URL: https://www.wavtron.in/products/rxe250-ptc-tyco ### ESP32-C6-DEVKITM-1-N4 Espressif Manufacturer Name : Espressif Systems ESP32-C6 GENERAL-PURPOSE DEVELOP Brand: Espressif Systems Category: Wireless Price: INR 1227.00 SKU: WV-13984 URL: https://www.wavtron.in/products/esp32-c6-devkitm-1-n4-espressif ### M7 Diode SMD Manufacturer Name : MDD(Microdiode Semiconductor) Diode 1000 V 1A Surface Mount SMA Brand: MDD(Microdiode Semiconductor) Category: Diode Price: INR 1.00 SKU: WV-13922 URL: https://www.wavtron.in/products/m7-diode-smd ### Ra-01 V1 LoRa module RA-01 V1 LoRa Module is a compact, high-performance wireless transceiver designed for ultra-long-range communication and low-power IoT applications. Powered by the Semtech SX1278 chip, it uses advanced LoRa™ spread spectrum technology to deliver reliable data transmission over several kilometers, even in challenging environments. Brand: Ai-Thinker Category: Lora Price: INR 472.35 SKU: WV-13851 URL: https://www.wavtron.in/products/ra-01-v1-lora-module ### ESP32-C61-DEVKITC-1-N8R2 Manufacturer Name : Espressif Systems EVAL BOARD FOR ESP32-C61-WROOM-1 Brand: Espressif Systems Category: Wireless Price: INR 1218.00 SKU: WV-14003 URL: https://www.wavtron.in/products/esp32-c61-devkitc-1-n8r2 ### ESP32-S3-DEVKITC-1U-N8R8 Manufacturer Name : Espressif Systems ESP32-S3-WROOM-1U-N8R8 DEV BRD Brand: Espressif Systems Category: Wireless Price: INR 1864.00 SKU: WV-13999 URL: https://www.wavtron.in/products/esp32-s3-devkitc-1u-n8r8 ### 4 Pin Magnetic connector 2mm Pitch 4 pin Magnetic Connector High Power Magnetic Pogo Pin Connector Features: Realize the charging function Category: Terminal Blocks Price: INR 300.00 SKU: WV-13923 URL: https://www.wavtron.in/products/4-pin-magnetic-connector-2mm-pitch ### SS34 3A 40V Schotty SMA(DO214-AC) Manufacturer Name : Hottech semi Diode 40 V 3A Surface Mount DO-214 Brand: Hottech semi Category: Diode Price: INR 2.00 SKU: WV-13921 URL: https://www.wavtron.in/products/ss34-3a-40v-schotty-smado214-ac ### SMD led Red 0805 package Manufacturer Name : Everlight Brand: Everlight Category: Led Price: INR 2.50 SKU: WV-13918 URL: https://www.wavtron.in/products/smd-led-red-0805-package ### 3mm Led red Through hole Manufacturer Name : Everlight Brand: Everlight Category: Led Price: INR 0.50 SKU: WV-13917 URL: https://www.wavtron.in/products/3mm-led-red-through-hole ### 3mm Led green Through hole Manufacturer Name : Everlight Brand: Everlight Category: Led Price: INR 0.50 SKU: WV-13916 URL: https://www.wavtron.in/products/3mm-led-green-through-hole ### 100uF 25V 10% SMD TANTALUM Manufacturer Name : AVX \n \nAVX DC-2115 D Case \n100 µF Molded Tantalum Capacitors 25 V 2917 Brand: AVX Category: Capacitor Price: INR 16.00 SKU: WV-14020 URL: https://www.wavtron.in/products/100uf-25v-10-smd-tantalum ### ESP32-S3-BOX-3B Manufacturer Name : Espressif Systems \n \n \nEVAL BOARD FOR ESP32-S3 \n \nESP32-S3-BOX-3B Evaluation Board from Espressif Systems is a versatile development platform designed for RF, RFID, and wireless applications. It features the powerful ESP32-S3-WROOM-1N116R16V module Brand: Espressif Systems Category: Wireless Price: INR 4800.00 SKU: WV-13848 URL: https://www.wavtron.in/products/esp32-s3-box-3b ### Ra-08 LoRaWAN module Manufacturer Name : Ai-Thinker Brand: Original Category: Lora Price: INR 350.00 SKU: WV-13895 URL: https://www.wavtron.in/products/ra-08-lorawan-module ### ESP32-S3-DevKitC N16R8 dev board ESP32-S3-DevKitC N16R8 Development Board is a powerful and versatile IoT development platform based on the ESP32-S3 chipset. It features dual-core LX7 processor, 16MB Flash, and 8MB PSRAM, along with built-in Wi-Fi and Bluetooth 5 (LE) connectivity. Ideal for prototyping smart devices, AIoT applications, and embedded systems development. Category: Wireless Price: INR 900.00 SKU: WV-04001 URL: https://www.wavtron.in/products/esp32-s3-devkitc-n16r8-dev-board ### Ra-01SH-P LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 480.50 SKU: WV-13860 URL: https://www.wavtron.in/products/ra-01sh-p-lora-module ### Ra-01SC LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 348.00 SKU: WV-13856 URL: https://www.wavtron.in/products/ra-01sc-lora-module ### Ra-01S LoRa module Manufacturer : Ai-Thinker Brand: Ai-Thinker Category: Lora Price: INR 635.58 SKU: WV-13854 URL: https://www.wavtron.in/products/ra-01s-lora-module ### Relay 12V 30A T90 RCC Manufacturer : RCC T90 Type Relay\nCoil Voltage: 12V DC NC Contact Rating: 30A @ 240V AC / 28V DC NO Contact Rating: 20A @ 240V AC / 28V DC Brand: RCC Category: Relays Price: INR 40.00 SKU: WV-13834 URL: https://www.wavtron.in/products/relay-12v-30a-t90-rcc ### Ra-09H (New) LoRaWAN module Manufacturer Name : Ai-Thinker Brand: Original Category: Lora Price: INR 850.00 SKU: WV-13898 URL: https://www.wavtron.in/products/ra-09h-new-lorawan-module ### ESP32-H2-DEVKITM-1-N4S Manufacturer Name : Espressif Systems ESP32-H2-DEVKITM-1 IS AN ENTRY-L Brand: Espressif Systems Category: Wireless Price: INR 1355.00 SKU: WV-14007 URL: https://www.wavtron.in/products/esp32-h2-devkitm-1-n4s ### ESP32-S3-DEVKITC-1-N8R8 Dev Manufacturer Name : Espressif Systems ESP32-S3-WROOM-1-N8R8 DEV BRD Brand: Espressif Systems Category: Wireless Price: INR 1864.00 SKU: WV-13995 URL: https://www.wavtron.in/products/esp32-s3-devkitc-1-n8r8-dev ### ESP32-WROOM32UE-N4CT-ND Wi-Fi, External Antenna The ESP32-WROOM-32UE-N4 module by Espressif Systems is a powerful and reliable Wi-Fi + Bluetooth solution designed for a wide range of IoT and embedded applications. Built around the ESP32 SoC, it features a dual-core Tensilica Xtensa® LX6 processor that delivers high performance with low power consumption. Brand: Tower pro Category: WiFi Price: INR 260.00 SKU: WV-13837 URL: https://www.wavtron.in/products/esp32-wroom32ue-n4ct-nd-wi-fi-external-antenna ### MG90S MICRO SERVO Manufacturer Name : Tower pro Brand: Tower pro Category: Servo Motors Price: INR 155.00 SKU: WV-13907 URL: https://www.wavtron.in/products/mg90s-micro-servo ### ESP32-C6-DEVKITC-1-N8 Espressif Manufacturer Name : Espressif Systems ESP32-C6 GENERAL-PURPOSE DEVELOP Brand: Espressif Systems Category: Wireless Price: INR 1218.00 SKU: WV-13992 URL: https://www.wavtron.in/products/esp32-c6-devkitc-1-n8-espressif ### MS8233C Digital Multimeter Manufacturer Name : Mastech Mastech MS8233C is a manually 19-range fully featured digital multimeter. Brand: Mastech Category: Multimeter Price: INR 1900.00 SKU: WV-13910 URL: https://www.wavtron.in/products/ms8233c-digital-multimeter ### SMD led Blue 0805 package Manufacturer Name : Everlight Package Type: SMD 0805 Emitted Color: Blue Brand: Everlight Category: Led Price: INR 2.50 SKU: WV-13919 URL: https://www.wavtron.in/products/smd-led-blue-0805-package ### 1N5919BRLG Zener Diode, 5.6V, 3W, TH (DO-204AL) Manufacturer Name : ONSEMI DC:2412 Brand: ONSEMI Category: Zener Diode Price: INR 15.00 SKU: WV-13911 URL: https://www.wavtron.in/products/1n5919brlg-zener-diode-56v-3w-th-do-204al ### ESP32-C3-MINI-1-N4-A Espressif Espressif Multiprotocol Modules AWS IoT Express Link Module, pre-provisioned with required certificates and the ExpressLink firmware, for out-of-the-box connectivity to AWS IoT Core. RF TXRX MOD BT WIFI PCB TH SMD Brand: Original Category: WiFi Price: INR 285.00 SKU: WV-13904 URL: https://www.wavtron.in/products/esp32-c3-mini-1-n4-a-espressif ### ESP32-WROOM-32UE-N16 MODULES Espressif Systems Brand: Espressif Systems Category: WiFi Price: INR 480.00 SKU: WV-13839 URL: https://www.wavtron.in/products/esp32-wroom-32ue-n16-modules ### ESP32-C3-DEVKITM-1-N4X Espressif Manufacturer Name : Espressif Systems ENTRY-LEVEL DEVELOPMENT BOARD Brand: Espressif Systems Category: Wireless Price: INR 1127.00 SKU: WV-13988 URL: https://www.wavtron.in/products/esp32-c3-devkitm-1-n4x-espressif ### STM32F030K6T6 MCU SMD-32LQFP Manufacturer Name : STMicroelectronics\nARM® Cortex®-M0 STM32F0 Microcontroller IC 32-Bit Brand: STMicroelectronics Category: Microcontroller Price: INR 90.00 SKU: WV-13954 URL: https://www.wavtron.in/products/stm32f030k6t6-mcu-smd-32lqfp ### OEN 58-24-1C MINIATURE POWER RELAY 24V Manufacturer Name : OEN Ambient Temperature : -40°c to +70°c Weight : 18 gms (approx) Brand: OEN Category: Relays Price: INR 68.00 SKU: WV-13913 URL: https://www.wavtron.in/products/oen-58-24-1c-miniature-power-relay-24v ### DM-91 Digital Multimeter Manufacturer Name : HTC Instruments Brand: HTC Instruments Category: Multimeter Price: INR 1500.00 SKU: WV-13909 URL: https://www.wavtron.in/products/dm-91-digital-multimeter ### STM32F401CEU6 MCU 32BIT 512KB FLSH 48UFQFPN Manufacturer Name : STMicroelectronics ARM® Cortex®-M4 STM32F4 Microcontroller IC 32-Bit 84MHz 512KB (512K x 8) FLASH 48-UFQFPN IC MCU 32BIT 512KB FLSH 48UFQFPN Voltage - Supply (Vcc/Vdd) 1.7V ~ 3.6V Brand: STMicroelectronics Category: Microcontroller Price: INR 350.00 SKU: WV-13906 URL: https://www.wavtron.in/products/stm32f401ceu6-mcu-32bit-512kb-flsh-48ufqfpn ### NTC 5D-9 Manufacturer Name : China Brand: China Category: Thermistors Price: INR 3.00 SKU: WV-13902 URL: https://www.wavtron.in/products/ntc-5d-9 ### ESP32-DEVKITC-32E (Dev Board) Manufacturer Name : Espressif Systems ESP32-WROOM-32E 4MB FLASH Development board Brand: Espressif Systems Category: Wireless Price: INR 1200.00 SKU: WV-13903 URL: https://www.wavtron.in/products/esp32-devkitc-32e-dev-board ### STM8S103F3P6 MCU STM8S Series STM8S103F3P6 is a cost-effective and high-performance 8-bit microcontroller from the STM8S series, designed for reliable operation in embedded and industrial applications. It features a robust STM8 core, efficient power consumption, and a rich set of peripherals, making it ideal for control systems and general-purpose embedded designs. Category: Microcontroller Price: INR 45.00 SKU: WV-04002 URL: https://www.wavtron.in/products/stm8s103f3p6-mcu-stm8s-series ### ESP32-C3-MINI-1-H4X Espressif Systems WI-FI AND BLUETOOTH LE MODULES GPIO, I2C, I2S, JTAG, PWM, SPI, UART, USB Memory Size 4MB Flash Brand: Original Category: WiFi Price: INR 285.00 SKU: WV-13905 URL: https://www.wavtron.in/products/esp32-c3-mini-1-h4x ### ESP32-S3-WROOM-1U-N16R8 Module Manufacturer Name : Espressif Systems Multiprotocol Modules SMD module, ESP32-S3R2 with 2 MB PSRAM die inside, 16 MB SPI flash, IPEX antenna connector.Wireless & RF Modules\n\n Brand: Espressif Systems Category: WiFi Price: INR 420.00 SKU: WV-14026 URL: https://www.wavtron.in/products/esp32-s3-wroom-1u-n16r8-module ### BiColor LED – CC– 3 mm – Red & Green 3mm Bi-Color LED (Red and Green) from a single package Brand: Everlight Category: Led Price: INR 2.45 SKU: WV-14315 URL: https://www.wavtron.in/products/bicolor-led-cc-3-mm-red-green ### 2Pin Jumper Short Circuit Cap 2.54mm Close Type 2Pin 2.54mm Mini Jumper (Close Type) – A short-circuit cap used to connect or disconnect two adjacent pins on a 2.54mm pitch header. Category: PCB Mountable Price: INR 0.60 SKU: WV-04003 URL: https://www.wavtron.in/products/2pin-jumper-short-circuit-cap-254mm-close-type ### STM32F407VET6 ARM core Cortex-M4 Category: Microcontroller Boards Price: INR 1850.00 SKU: WV-2601 URL: https://www.wavtron.in/products/stm32f407vet6-arm-core-cortex-m4 ### ESP32-C3 SuperMini Espressif Systems ESP32-C3-SuperMini DEV BRD Brand: Espressif Systems Category: Wireless Price: INR 265.00 SKU: WV-14011 URL: https://www.wavtron.in/products/esp32-c3-supermini ### SMD led Green 0805 package Manufacturer Name : Everlight Package Type: SMD 0805 Emitted Color: Green Brand: Everlight Category: Led Price: INR 2.50 SKU: WV-13920 URL: https://www.wavtron.in/products/smd-led-green-0805-package ## Blog Posts ### Getting Started with ESP32: A Complete Beginner's Guide Category: Guides Published: 2026-04-10 Learn how to set up your ESP32 dev board, install the Arduino IDE, connect to WiFi, and build your first IoT project step by step. URL: https://www.wavtron.in/blog/esp32-getting-started ### ESP32 vs ESP32-S3 vs ESP32-C3: Which Board Should You Pick? Category: Reviews Published: 2026-04-08 A detailed comparison of the three most popular ESP32 variants to help you choose the right microcontroller for your next IoT project. URL: https://www.wavtron.in/blog/esp32-vs-esp32s3-vs-esp32c3 ### Building a Long-Range IoT Network with LoRa and ESP32 Category: Guides Published: 2026-04-06 Learn how to build a kilometre-range IoT network using LoRa modules and ESP32, perfect for farm monitoring, weather stations, and remote sensing. URL: https://www.wavtron.in/blog/lora-esp32-long-range-iot ### Controlling Servo Motors with Arduino: From Basics to Precision Category: Guides Published: 2026-04-04 Master servo motor control with Arduino — from basic sweeps to smooth multi-servo coordination for robotics and automation projects. URL: https://www.wavtron.in/blog/servo-motor-arduino-tutorial ### How to Use the UT890D+ Multimeter Like a Pro Category: Guides Published: 2026-04-02 A practical guide to mastering your UT890D+ multimeter — from basic voltage checks to advanced debugging of electronics projects. URL: https://www.wavtron.in/blog/ut890d-multimeter-guide ### DC-DC Buck Converters Explained: Powering Your Projects Efficiently Category: Guides Published: 2026-03-30 Understand how buck converters work and learn to efficiently power your microcontroller projects from batteries and higher-voltage sources. URL: https://www.wavtron.in/blog/dc-dc-buck-converters-explained ### 5 IoT Projects You Can Build This Weekend Category: Projects Published: 2026-03-28 Five practical IoT projects using ESP32 and common sensors — from weather stations to plant watering systems — each buildable in a single weekend. URL: https://www.wavtron.in/blog/5-iot-projects-this-weekend ### Relay Modules Demystified: Switching High Voltage Safely Category: Guides Published: 2026-03-26 Everything you need to know about relay modules — how they work, how to wire them safely, and how to control high-voltage appliances with Arduino and ESP32. URL: https://www.wavtron.in/blog/relay-modules-demystified ### Choosing the Right Sensor for Your Next Project Category: Reviews Published: 2026-03-24 A practical comparison of popular sensors across six categories — temperature, distance, motion, light, gas, and soil — to help you pick the perfect one. URL: https://www.wavtron.in/blog/choosing-right-sensor ### Home Automation with ESP32 and LoRa: A Step-by-Step Guide Category: Projects Published: 2026-03-22 Build a complete home automation system using ESP32 and LoRa — control garden watering, monitor your gate, and automate terrace lights from a single dashboard. URL: https://www.wavtron.in/blog/home-automation-esp32-lora ### ESP32 Deep Sleep: Maximizing Battery Life for IoT Projects Category: Guides Published: 2026-03-20 Learn how to use ESP32 deep sleep modes to build battery-powered IoT devices that last months on a single charge. URL: https://www.wavtron.in/blog/esp32-deep-sleep-battery-life ### Getting Started with Arduino: The Ultimate Beginner's Guide Category: Guides Published: 2026-03-18 Everything you need to know to start building with Arduino — from installing the IDE to writing your first programs and reading sensors. URL: https://www.wavtron.in/blog/arduino-beginners-guide ### Understanding I2C Communication: A Practical Guide for Makers Category: Guides Published: 2026-03-16 Master the I2C protocol — learn how to connect multiple sensors, displays, and modules to your Arduino or ESP32 using just two wires. URL: https://www.wavtron.in/blog/i2c-communication-guide ### SPI vs I2C vs UART: Choosing the Right Communication Protocol Category: Reviews Published: 2026-03-14 A clear comparison of the three most common communication protocols in electronics — when to use SPI, I2C, or UART in your projects. URL: https://www.wavtron.in/blog/spi-i2c-uart-comparison ### Building a WiFi Weather Station with ESP32 and BME280 Category: Projects Published: 2026-03-12 Build a complete WiFi weather station that measures temperature, humidity, and pressure — with an OLED display and a web dashboard you can access from your phone. URL: https://www.wavtron.in/blog/esp32-weather-station-bme280 ### Introduction to PCB Design for Beginners Category: Fundamentals Published: 2026-03-10 Move your projects from breadboard to professional PCB — learn the complete workflow from schematic design to manufacturing your first board. URL: https://www.wavtron.in/blog/pcb-design-beginners ### Understanding MOSFETs: The Key to Motor and Load Control Category: Guides Published: 2026-03-08 Learn how MOSFETs work and how to use them to control motors, LED strips, pumps, and other high-current loads from your Arduino or ESP32. URL: https://www.wavtron.in/blog/mosfet-motor-control ### ESP32 Bluetooth: Building a BLE Remote Control Category: Guides Published: 2026-03-06 Build a Bluetooth Low Energy remote control with ESP32 — control LEDs and read sensors from your phone using BLE and Web Bluetooth. URL: https://www.wavtron.in/blog/esp32-bluetooth-ble-remote ### Solar-Powered IoT: Running ESP32 Projects Off-Grid Category: Projects Published: 2026-03-04 Design and build a completely self-sustaining solar-powered ESP32 IoT node — from panel selection to battery management and weatherproof deployment. URL: https://www.wavtron.in/blog/solar-powered-iot-esp32 ### Understanding Capacitors: Types, Uses, and Selection Guide Category: Fundamentals Published: 2026-03-02 A complete guide to capacitor types, specifications, and practical applications — learn how to choose and use the right capacitor for any electronics project. URL: https://www.wavtron.in/blog/understanding-capacitors ### Building a Smart Energy Monitor with ESP32 Category: Projects Published: 2026-02-28 Build a DIY energy monitor that tracks your electricity consumption in real-time — see live watts, daily kWh, and estimated monthly bills on a web dashboard. URL: https://www.wavtron.in/blog/smart-energy-monitor-esp32 ### Getting Started with MQTT for IoT Projects Category: Guides Published: 2026-02-26 Learn MQTT from scratch — set up a broker, connect your ESP32, and build a real-time IoT messaging system for sensor data and device control. URL: https://www.wavtron.in/blog/mqtt-iot-guide ### ESP32 OTA Updates: Updating Firmware Over WiFi Category: Guides Published: 2026-02-24 Learn three methods to update ESP32 firmware over WiFi — never disconnect a deployed device to flash new code again. URL: https://www.wavtron.in/blog/esp32-ota-firmware-updates ### Building a Line-Following Robot with Arduino Category: Projects Published: 2026-02-22 Build your first robot — a line-following bot using Arduino, IR sensors, and DC motors. Includes basic, PWM, and PID control code. URL: https://www.wavtron.in/blog/line-following-robot-arduino ### Understanding Oscilloscopes: A Beginner's Guide to Signal Visualization Category: Reviews Published: 2026-02-20 Learn how to use an oscilloscope to visualize and debug electronic signals — from PWM waveforms to I2C communication and power supply noise. URL: https://www.wavtron.in/blog/oscilloscope-beginners-guide ### ESP32-CAM: Building a WiFi Security Camera for Under ₹600 Category: Projects Published: 2026-02-18 Turn an ESP32-CAM into a fully functional WiFi security camera with live streaming, motion detection, and Telegram alerts — all for under ₹600. URL: https://www.wavtron.in/blog/esp32-cam-wifi-security-camera ### Introduction to LoRaWAN and The Things Network in India Category: Guides Published: 2026-02-16 Get started with LoRaWAN in India — learn how to connect ESP32 devices to The Things Network using the IN865 frequency plan for free, long-range IoT connectivity. URL: https://www.wavtron.in/blog/lorawan-things-network-india ### Soldering for Beginners: Tools, Techniques, and Tips Category: Fundamentals Published: 2026-02-14 Learn to solder like a pro — from choosing the right iron to making perfect joints. A hands-on guide for electronics beginners. URL: https://www.wavtron.in/blog/soldering-beginners-guide ### Building a GPS Tracker with ESP32 and NEO-6M Category: Projects Published: 2026-02-12 Build a fully functional GPS tracker using ESP32 and NEO-6M — log routes, display coordinates, and send location data over WiFi or cellular. URL: https://www.wavtron.in/blog/gps-tracker-esp32-neo6m ### Resistors Explained: Color Codes, Types, and How to Choose the Right One Category: Fundamentals Published: 2026-02-10 Everything you need to know about resistors — from reading color codes to choosing the right type and value for any circuit. The most fundamental component, fully explained. URL: https://www.wavtron.in/blog/resistors-complete-guide ### ESP-IDF vs Arduino Framework: Which Should You Use for ESP32? Category: Reviews Published: 2026-02-08 A practical comparison of ESP-IDF and Arduino for ESP32 development — understand the trade-offs and choose the right framework for your project. URL: https://www.wavtron.in/blog/esp-idf-vs-arduino-framework ### Stepper Motors Explained: Complete Guide with A4988 Driver Category: Guides Published: 2026-02-06 Learn how stepper motors work, wire them with the A4988 driver, and control precise positioning from Arduino or ESP32 with acceleration support. URL: https://www.wavtron.in/blog/stepper-motor-guide-a4988 ### FreeRTOS on ESP32: A Beginner's Guide to Multitasking Category: Guides Published: 2026-02-04 Learn how to run multiple tasks simultaneously on ESP32 using FreeRTOS — read sensors, serve web pages, and control outputs all at once. URL: https://www.wavtron.in/blog/freertos-esp32-multitasking ### OLED Display Tutorial: SSD1306 with Arduino and ESP32 Category: Guides Published: 2026-02-02 Master the SSD1306 OLED display — from Hello World to sensor dashboards, menus, animations, and custom graphics with Arduino and ESP32. URL: https://www.wavtron.in/blog/oled-display-ssd1306-tutorial ### ESP32 WiFi Manager: No More Hardcoded Credentials Category: Guides Published: 2026-01-30 Build a professional WiFi setup experience for your ESP32 projects — let users configure WiFi credentials through a captive portal, no code changes needed. URL: https://www.wavtron.in/blog/esp32-wifi-manager-captive-portal ### WS2812B Addressable LED Strips: The Complete Guide Category: Guides Published: 2026-01-28 Everything you need to know about WS2812B addressable LED strips — wiring, power, coding stunning animations, and building LED projects with Arduino and ESP32. URL: https://www.wavtron.in/blog/ws2812b-led-strip-guide ### 3D Printing Enclosures for Your Electronics Projects Category: Guides Published: 2026-01-26 Design and 3D print professional enclosures for your ESP32, Arduino, and sensor projects — from basic boxes to weatherproof outdoor housings. URL: https://www.wavtron.in/blog/3d-printing-electronics-enclosures ### Power Supply Basics: How to Power Any Electronics Project Category: Fundamentals Published: 2026-01-24 The complete guide to powering electronics projects — from USB and batteries to wall adapters and voltage regulators. Never wonder 'how do I power this?' again. URL: https://www.wavtron.in/blog/power-supply-basics-guide ### Color TFT Displays with ESP32: ST7789 and ILI9341 Guide Category: Guides Published: 2026-01-22 Add vibrant color displays to your ESP32 projects — learn to drive ST7789 and ILI9341 TFT screens with graphics, charts, images, and touch input. URL: https://www.wavtron.in/blog/tft-display-esp32-st7789 ### ESP32 WebSocket: Building Real-Time Web Interfaces Category: Guides Published: 2026-01-20 Build blazing-fast real-time web dashboards for your ESP32 — live sensor data, instant controls, and bidirectional communication using WebSockets. URL: https://www.wavtron.in/blog/esp32-websocket-realtime ### Voltage Dividers: The Most Useful Circuit in Electronics Category: Fundamentals Published: 2026-01-18 Master the voltage divider — the simplest yet most versatile circuit in electronics. Learn the math, practical applications, and common pitfalls. URL: https://www.wavtron.in/blog/voltage-divider-deep-dive ### ESP32 Mesh Networking: Connect Dozens of Devices Without a Router Category: Guides Published: 2026-01-16 Build self-healing mesh networks with ESP32 — connect dozens of sensor nodes across large areas without WiFi infrastructure using ESP-MESH and ESP-NOW. URL: https://www.wavtron.in/blog/esp32-mesh-networking ### IoT Security for Makers: Protecting Your ESP32 Projects Category: Guides Published: 2026-01-14 Secure your ESP32 IoT projects from common attacks — learn HTTPS, TLS, authentication, secure boot, and credential management for connected devices. URL: https://www.wavtron.in/blog/iot-security-esp32-guide ### Breadboard Prototyping: From Basics to Best Practices Category: Fundamentals Published: 2026-01-12 Master breadboard prototyping — learn how breadboards work, build clean circuits, avoid common mistakes, and know when to move to PCB. URL: https://www.wavtron.in/blog/breadboard-prototyping-guide ### ESP32 Data Logging: SD Card, SPIFFS, and Cloud Options Category: Guides Published: 2026-01-10 Build reliable data logging systems with ESP32 — store sensor data on SD cards, internal flash, or stream to the cloud with timestamped CSV files. URL: https://www.wavtron.in/blog/esp32-data-logging-sd-card ### Transistor Basics: NPN, PNP, and How to Use Them Category: Fundamentals Published: 2026-01-08 Understand how transistors work and learn to use NPN and PNP BJTs as switches and amplifiers in your Arduino and ESP32 projects. URL: https://www.wavtron.in/blog/transistor-basics-npn-pnp ### ESP32 Telegram Bot: Send Alerts and Control Devices from Your Phone Category: Guides Published: 2026-01-06 Build a Telegram bot on ESP32 to send instant alerts, receive commands, and control your IoT devices from anywhere using your phone. URL: https://www.wavtron.in/blog/esp32-telegram-bot-notifications ### ESD Protection: Stop Killing Your Components Category: Fundamentals Published: 2026-01-04 Learn how electrostatic discharge silently destroys electronic components — and how to protect your ESP32, sensors, and ICs with proper ESD handling practices. URL: https://www.wavtron.in/blog/esd-protection-electronics ### Debugging Electronics: A Systematic Approach to Finding Faults Category: Fundamentals Published: 2026-01-02 Stop randomly swapping components — learn a systematic approach to debugging electronics projects that finds the root cause every time. URL: https://www.wavtron.in/blog/debugging-electronics-systematic ### Building a Smart Irrigation System with ESP32 for Indian Gardens Category: Projects Published: 2025-12-30 Automate your garden watering with ESP32 — soil moisture sensing, smart scheduling, weather awareness, and Telegram alerts. Save water and grow healthier plants. URL: https://www.wavtron.in/blog/esp32-smart-irrigation-system ### Ohm's Law in Practice: The One Formula Every Maker Needs Category: Fundamentals Published: 2025-12-28 Master Ohm's Law with 10 real-world calculation examples — from LED resistors to battery life estimation. The one formula that makes all of electronics click. URL: https://www.wavtron.in/blog/ohms-law-practical-guide