Because I like the concept, here's this years #GoodOf2024. A concise list of projects I did in 2024, to actually convince my brain that yes, I actually achieved something.

- Helped @patagona with his ISDT #CM1620 reverse engineering
- Built the #Framework #DongleHiderPlus expansion card
- Implemented MQTT data logging for the #ePocketBike stats
- Started development of an #Arduino compatible Ethernet stack for the cheap #CH32V208 MCUs (built-in 10M PHY)

🧵 1/3

I've recently discovered the ISDT CM1620 charging modules.

They're pretty cheap (~140€) and promise some pretty good specs:
- ~11-70V / 1100W input
- ~8-70V 20A / 1000W output
- LiHv, LiPo, LiFe 2-16S balance charging
- Control via Micro-USB, Bluetooth, RS485, CAN or an optional controller with display

From our tests, they work fine, even at max load (16S 15A).

However, they do have some quirks...

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#ISDT #CM1620 #BatteryCharger #RS485 #ReverseEngineering #USBC