A digital out pin on OpenScale?

Sensors Force & Weight
1

Hello,

I am looking for an extra digital output pin on OpenScale board.

The plan is to use the pin to deep-sleep/wake-up an LTE module attached to OpenScale.

I am aware that there are TX and RX, but I should not use them as GPIO when OpenScale calls Serial.begin(), right?

Although I don’t use any external serial device, I still want to use the USB serial interface for configuration, calibration, etc…

Thanks in advance!

Iwao

2

Hi Iwao.

D11 (MOSI) and D12 (MISO) are free on the ICSP connector. You will probably want to avoid D13 since the bootloader messes with that pin at powerup and whenever the board is reset. You can find those on pins 1 and 4 of the ICSP connector in the photo below. :slight_smile:

13261-04.jpg
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3

Thank you very much for the quick and informative reply, Chris!

I chose D11 and it is working!

Regards,

Iwao`