Hey @CamDavidsonPilon, I’m just wondering how much you’re able to share on the next iteration of the HAT that you’ve mentioned a couple of times, fine if it’s secret. I’m toying with the idea of designing a HAT or similar that will take and distribute 24V power over RJ45 and control using modbus for a more industrial-friendly thing for probes, pumps, motors etc. vs i2c and dupont cables. Ideally only one source of power for the whole thing. Currently there’s a jack for 12V power on the HAT, and the Pi needs separate power, but I think you said the new HAT would transform this down to 5V to power the Pi potentially?
Hi @noahsprent,
We can share some details, yup:
- The entire Pioreactor will be powered from a single USB-C on the HAT. The USB-C negotiates with the PSU for 12V, ~2.25 A, and we transform this to 5V to feed into the Raspberry Pi. The existing barrel connector is being removed.
- The PWMs will have access to the 12V, and will have the same connectors as the existing HAT. The PWMs also are controlled by an H-bridge, and one can control the PWM output forwards or backwards.
- Stemma QT stays as we plan to keep using this ecosystem
- LED channels going from four outputs to three outputs
That’s all I can share currently!
Epic thanks! Given how cheap these things are to get made I’ll build for the current one then can update the next one with a USB-PD controller, but nothing else will fundamentally change