USD143.42
USD187.42
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4 Channel Relay Module 12V High and Low Level Trigger Relay Module Vibration Motor or air purifiers based on or air purifiers based on real time air quality and humidity thresholds It solves the critical problem of bringing intelligent visual perception to resource constrained IoT devices and embedded systems by combining powerful processing capabilities with low power consumption and compact form factor It has a wide range of applications such as all MCU control One can connect a microcontroller with standard interface directly to it
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