Raspberry Pi 4

Only 1 full year after it was released, I managed to get a Raspberry Pi 4 and test it out in the quad A1. I had been delaying doing so because of reports of thermal issues. The Pi 3B+ already ran a little hot and I didn’t want to have to add active cooling into the robot chassis to get it stable.

It looks like the Raspberry Pi engineers have been hard at work because the newer firmware releases have significantly reduced the overall power consumption and thus the thermal load. In my testing so far it only seems “a little” hotter than the 3b+.

The now somewhat misnamed “pi3hat” worked just fine with the pi4, with some minor changes to the software to support the new peripheral base address from the bcm2711 SoC in the Pi 4.

Yes, you can see the USB3 ports there

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