If you’re a bit old school like me, you’d be expecting to find something called COM1 or similar on a header. Historyīefore I dive into the configuration, it’s worth taking a moment for a little history and orientation about the serial port on the Raspberry Pi. Should this change again, I’ll update this post. NOTE: You will need the latest firmware May 2016 or later for this to work (works with August 2019 firmware). With luck you can have your cake and eat it: use the serial port on a Raspberry Pi 3 / 4 and use the Bluetooth AND have the same code work on other Raspberry Pi’s (non RPi3 / 4). Add to this, the newer Raspberry Pi 3 and 4 family with new hardware and the whole thing became a bit of a Dog’s Breakfast and issues with the Bluetooth to boot.įollowing lots of wasted time, I’ve noted down what I think I know so far in this post. This used to be relatively straightforward, but with move from Raspbian Wheezy to Raspbian Jessie, (and then Raspbian Stretch and Buster) things changed.
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