Product
ADIY ESP32 IoT Relay Module 4 Channel – Wi-Fi & Bluetooth Board with Opto-Isolated Relays, I2C & GPIO
₹967
Incl. of all taxes (GST)
ADIY 4 Channel ESP32 IoT Relay Module is a compact wireless automation controller based on the ESP32-WROOM platform. It combines built-in Wi-Fi and Bluetooth/BLE connectivity with four onboard 5V-coil relays, opto-isolated relay drive circuitry, an I2C expansion connector and a 16-pin GPIO breakout. It is ideal for smart home automation, IoT switching, remote appliance control, industrial prototypes and ESP32-based automation projects.
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ADIY ESP32 IoT Relay Module 4 Channel – Wi-Fi & Bluetooth Board with Opto-Isolated Relays, I2C & GPIO
₹967
The ADIY 4 Channel ESP32 IoT Relay Module is an integrated IoT automation board designed to simplify wireless control of electrical loads and external devices.
At the heart of the board is an ESP32-WROOM module, providing built-in Wi-Fi and Bluetooth/BLE connectivity. This enables developers to create wireless relay-control applications using web interfaces, mobile applications, MQTT, HTTP or other protocols supported by custom ESP32 firmware.
Key Features
ESP32-WROOM based IoT controller
Built-in Wi-Fi connectivity
Built-in Bluetooth / BLE
4 onboard relay channels
QY46F relays with 5V coils
Normally Open (NO) switching configuration
Optocoupler-based relay drive
Dedicated 4-pin I2C expansion interface
16-pin GPIO breakout header
Analog and digital GPIO expansion capability
PCB isolation slots around high-voltage relay traces
Compact approximately 85 × 50mm board size
Suitable for programmable wireless automation
Ideal for IoT and smart-control projects
At the heart of the board is an ESP32-WROOM module, providing built-in Wi-Fi and Bluetooth/BLE connectivity. This enables developers to create wireless relay-control applications using web interfaces, mobile applications, MQTT, HTTP or other protocols supported by custom ESP32 firmware.
Key Features
ESP32-WROOM based IoT controller
Built-in Wi-Fi connectivity
Built-in Bluetooth / BLE
4 onboard relay channels
QY46F relays with 5V coils
Normally Open (NO) switching configuration
Optocoupler-based relay drive
Dedicated 4-pin I2C expansion interface
16-pin GPIO breakout header
Analog and digital GPIO expansion capability
PCB isolation slots around high-voltage relay traces
Compact approximately 85 × 50mm board size
Suitable for programmable wireless automation
Ideal for IoT and smart-control projects
About this product
ADIY ESP32 IoT Relay Module 4 Channel – Wi-Fi & Bluetooth Board with Opto-Isolated Relays, I2C & GPIO is stocked, tested, and dispatched by Wavtron from our India warehouse. Every unit in the IoT gateway range is functionally checked before packing so you can build with confidence.
Order before 2 PM IST for same-day dispatch with full GST invoicing. Need a datasheet, sample code, or bulk pricing? Our support team replies within one business day.
At a glance
- Brand
- ADIY
- Category
- IoT gateway
- SKU
- WV-01005
- Availability
- Low Stock (5 left)
- Price
- ₹967
- Updated
- October 8, 2026
Frequently asked questions
- How fast does Wavtron ship ADIY ESP32 IoT Relay Module 4 Channel – Wi-Fi & Bluetooth Board with Opto-Isolated Relays, I2C & GPIO?
- Orders placed before 2 PM IST are dispatched the same business day from our India warehouse. Standard delivery typically reaches metros within 2–4 working days and other pin codes within 4–7 working days.
- Do you provide a GST invoice?
- Yes. Every order ships with a GST tax invoice. Add your GSTIN at checkout to claim input tax credit for business purchases.
- What is the return policy?
- You can return an unused item in its original packaging within 7 days of delivery. If it arrived faulty or dead on arrival, Wavtron pays the return shipping and replaces it free of charge — email support with your order ID and photos before shipping anything back. If you simply changed your mind, the return postage is yours to cover.
