IN - This pin is also called the control pin because it is used to control the output of the relay. COM - is connected to the device you intend to connect. NC - terminal is connected to the COM ...
This was formerly stated to be for the SainSmart relay modules, but it was later pointed out to me that these boards actually already have this logic built in to them. 8 12kΩ ¼ Watt Resistors This ...
The firmware can be easily ported but has been most heavily tested on STM32F103C8T6 based breakout boards. Connections required are: USB to host computer 5v and GND to relay board GPIOB 12-15 -> relay ...
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