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Access to additional I/O
Posted: Tue Jan 16, 2018 11:25 pm
by mj43
Is it possible to 'easily' access any of the I/O pins? For my project I need access to I2C and analogue pins to add some additional sensors. Are any of these available on the ten pads on the edge of the board?
Re: Access to additional I/O
Posted: Wed Jan 17, 2018 10:30 pm
by stanley
Two GPIO pins (GPIO32/33) which can be used for analog input are led out to the 4-pin connector on the enclosure.
Re: Access to additional I/O
Posted: Thu Jan 18, 2018 4:26 am
by mj43
Hi thanks, but aren't used by the GPS? Is there any I/O available on the 10 pins circled in the attached file?
Re: Access to additional I/O
Posted: Sun Aug 30, 2020 9:15 pm
by fdsh
I know it's an old thread. Did you find out how to use additional GPIOs?
Re: Access to additional I/O
Posted: Tue Sep 01, 2020 10:40 pm
by stanley
Only two exposed GPIO can be used.
Re: Access to additional I/O
Posted: Fri Sep 18, 2020 6:19 pm
by fdsh
Can the external GPIOs be used to connect an I2C device? This would be an easy way to expand GPIOs, e.g. using a chip like this:
https://www.instructables.com/id/IO-Exp ... d-Arduino/