US$ 40.00
or custom MQTT brokers
letting you create knob boxes
Broad Firmware Ecosystem: Program with Arduino IDE
Counterfeit boards often use inferior USB chips
flame retardancy
2-Ch 5V relay Board Raspberry Pi 4 Model B (4GB Ram) or custom MQTT brokers2 Channel 5V Relay Board Control high voltage appliances and devices safely with this 2 Channel 5V Relay Module from The Engineer Store, Bengaluru. Designed for seamless integration with Arduino, Raspberry Pi, ESP32, and other microcontrollers, this relay board lets you switch AC DC loads up to 250V AC 30V DC using simple 5V logic signals. Ideal for home automation, industrial control, and IoT projects. Fast shipping, 7 day warranty on manufacturing
US$ 40.00
US$ 24.00
US$ 21.95
US$ 36.99
US$ 30.50