Orange Pi Zero GPIO bread board

[lzb]

I'm looking at GPIOs and I'm not sure - can I buy an "old" (26 pin) Raspberry Pi gpio adapter-breadboard-cable package (like this one) and use it on Orange Pi Zero GPIOs as on Raspberry Pi GPIOs?

[chwe]

why not? GPIO is GPIO.

 

the only thing is to find a GPIO library which fits best to your use-case. 

• @Larry Bank provides a C Library with python and Java bindings (with a lot of examples, sysFS based).  https://github.com/bitbank2/ArmbianIO
• I maintained a fork of pyA20 (Python based, pyGPIO /dev/mem based, needs root to execute programs) with multiple boards, but cause he's a way more active than me, I suggest to use his library as long as you don't need 'maximum speed' to toggle pins.
• @sgjava provides bindings for a libgpiod based library (needs mainline kernel) with python and java bindings

And there are other libraries 'in the wild' which might or might not work for your board. 

[Larry Bank]

Yes, the physical pins line up with the RPI original 26-pin GPIO. Remember that the connector is on the "other side" of the board with respect to the RPI way of doing it.

[sgjava]

@chwe I just did a quick test using User Space IO which uses liggpiod 1.1. On a NanoPi Duo I was able to toggle a pin at 25 KHz (on/off cycle) with Python. If you need speed or precision I'd go with hardware PWM which User Space IO supports.

[lzb]

13 hours ago, Larry Bank said:

Yes, the physical pins line up with the RPI original 26-pin GPIO. Remember that the connector is on the "other side" of the board with respect to the RPI way of doing it.

Yeah, I remember from somewhere that OPi has "compatible" GPIO with RPI, but rotated (180 degrees?).

 

(as an important side note - would be nice if pin description on the breadboard adapter fit actual pins - I can live without this or with a piece of paper, but it's usefull to have valid description for kids )