1- First of all I have StandardFirmata loaded for my Arduino board connected to COM4 port:
2- After opening Node Red and Deploying, only the LED works and the LDR does not connect

3- Both are connected to the same COM4 port, which is the correct one
Does anyone know how to solve this problem? If I have to run another type of Firmata, I don't know
Thank you very much for your attention
An LDR is an analog device, have you connected it to one of the Analog in pins, via a voltage divider, as well as designated as such in the node?



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It worked, the problem was that I was putting A5 instead of just 5
Thank you very much for the reply and for the help, I appreciate it
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