I’ve been running my emonPi setup for a few years now but it stopped working yesterday (around 2PM if the data in my HA install is to be believed). So I shut it down and tried rebooting it only to get stuck with “Booting…” on the LCD. So got a new SD card and the latest image, tried that same thing. …

If your getting the same result with a newly flashed SD card image then that does sound like a raspberry pi fault… it could be worth trying a new SD card if you have one spare to rule out a worn out card?

Welcome, Gavin, to the OEM forum. Er, @TrystanLea Gavin wrote that he’s already put the image onto a new SD card, so to me it looks as if the “emon” front end is stopping the Pi from booting. Does the Feb24 image work on an older emonPi with the serial interface?

[image] Q_Division: Took it completely to bits and just tried the Pi on it’s own, boots to the prompt Ah read that the wrong way round. Ok that’s a good clue, but not sure yet why that would be. Will have to check that on an emonpi here, though pretty sure it was fine when I tested it last.…

[image] Q_Division: no DMA platform data Searching for this error elsewhere suggests something to do with the UART/serial as your suggesting @Robert.Wall . Both the emonPi2 and original emonPi use the serial port /dev/ttyAMA0 in the same way (only difference being baud rate) so perhaps this su…

Booted up an emonPi v1 on the latest image, that’s working fine which suggests a fault with the emonPi measurement board itself. Could you take a close up picture of the top and bottom of the board? Your also welcome to post the board back to us and we can take a look at it here for you.

I’ve hooked up the board over serial with nothing connected beyond power and that seemed OK. Just tried the Nov23 image and that booted as a complete unit, did spot some error/warnings about undervoltage though: hwmon hwmon1: Undervoltage detected!" Re-trying the Feb24 image with the serial attac…

Here are photos of the board for ref., nothing jumps out at me. [PXL_20240224_170131960] [PXL_20240224_170138366]

OK, can’t tell you what the difference is but the Feb24 one worked after this flash. It’s looking like the original issue is a fault of the SD card as I can’t currently import the old data (it’s complaining about partitions)

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Faulty emonPi board?

Hardware emonPi

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