With hindsight perhaps running some GPIO validation tests involving pull-up and pull-down configurations with and without input buffer set could have been useful, but we’re guessing they may be ...

In the case of the Bus Pirate a potential workaround is the addition of 4.7 kOhm external pull-downs, but at the cost of 0.7 mA continuous load on the GPIO when pulled high and part of that when ...

I always like projects that bring the Raspberry Pi and Arduino together, however gently. It's what the world needs, a bit more harmony. Check out this little one on GPIO programming on a Raspberry Pi ...