RPi.GPIO basics 1 – how to check what RPi.GPIO version you have

 Input and Output, interfacing, python programming, raspberry pi  15 Responses »
Jul 112013
 
RPi.GPIO basics 1 - how to check what RPi.GPIO version you have

It struck me the other day that I’ve published some fairly advanced RPi.GPIO tutorials, (e.g. interrupts and PWM) but not done anything more basic, apart from the Gertboard examples. So here’s an attempt to remedy that situation. Over the next few days, we’re going to have a walk around Ben Croston’s RPi.GPIO, which is now at version 0.5.3a. Some of this stuff may be new to you even if you’ve been using RPi.GPIO’s more advanced features, so it’s worth having a look. What is RPi.GPIO? It’s an easy way of controlling the Pi’s General Purpose […more…]

How to use interrupts with Python on the Raspberry Pi and RPi.GPIO

 Input and Output, interfacing, python programming, raspberry pi  90 Responses »
Mar 172013
 
How to use interrupts with Python on the Raspberry Pi and RPi.GPIO

The latest big news in the world of Raspberry Pi Python GPIO programming is that Ben Croston has released an update for RPi.GPIO. Why is that a big deal? Because this version has interrupts. “What’s an interrupt?” I hear you say. It’s a way of waiting for something to happen without checking constantly whether or not it’s happening. Imagine that you’re waiting for a delivery – something you’re really excited about – like a Pi camera.You spend far too much time looking down the street in eager anticipation of the postman’s arrival. You can’t fully […more…]

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