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```html 4 Channel (I2C or SPI) 3
Compact Sugar Cube Form Factor: Ultra-small footprint saves valuable PCB real estate in space-constrained designs
This lightweight speaker delivers clear sound reproduction at low power
safe iron holder
Active-Low Trigger: Drive inputs LOW to energize relays
8 Channel 5V Relay Board raspberry pi ```html 4 Channel (I2C or8 Channel 5V Relay Board Control up to 8 high power devices independently using your Arduino, Raspberry Pi, ESP32, or any microcontroller with this robust 8 Channel 5V Relay Module. Ideal for home automation, industrial switching, and IoT projects, this board features optocoupler isolation for safe, reliable operation. Available now from The Engineer Store, Bengaluru with fast shipping, 7 day warranty on manufacturing defects, and dedicated technical
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