Unofficial Nextion/TJC User Forum

Expansion connector i/0


Does someone has any circuit design for interfacing a relay to an i/o ? I have the flat cable and the mini i/o connecter.

I know that these i/o have a maximum current of 1 ma if I read it correctly.



There are many breakout boards with the ULN2803 driver IC which can drive LED arrays, motors, and relays up to 500mA

Many thanks Fjodor :slight_smile:
I will look into that.


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