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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@favo
Hi everyone!
I want to control several 8-channel-relais from the espruino without using up all the pins on the board.
Thats why I connected a shift register (74HC595) where I can control each pin. I've successfully tested this with LEDs on all the outputs.
Now I have connected a single channel relais for testing on one of the shift registers output and it immediately turns on and won't turn off, no matter if there is a signal on the registers output.
The relais VCC is connected to the espruino 5V, the control PIN (IN) to the register and the GND to the espruinos GND. The register on the other hand gets its power from the 3.3V.
Is it possible that somebody points me into the right direction on how to figure this out?
Thank you,
Mario