Recent content by dakoal

Got it. If someone want's to communicate with DALY BMS from esp32/raspberry/... , here you are: single cell voltages: start gatttool in interactive mode. then write to characteristic handle 0x0010 gatttool -b BT:MAC:OF:DALY:BMS -I [BT:MAC:OF:DALY:BMS][LE]> connect Attempting to connect to...

Hi. In the past I built some software to communicate with chinese and european BMS with their Bluetooth Interface. For example: - energusps.com - Modbus over Bluetooth with raspberry. - xiaoxiang - BLE (first with Raspberry, then with ESP32). - ANT-BMS - Bluetooth socket (rfcomm like) with...

Hi, I found a source of some Flatpack2, Revision 1.2 / FW 1.10 / 1.10 All of these 9 can't be programmed for the fix start voltage. But I also have a Revision 3.3 / FW 1.12 / 1.14. This one can be programmed. Does anyone think we can read out the Firmware of the 3.3 and flash it to the 1.2?

Thank you. I will do the MOSFET thing and tell here how it works. SOC is only 1byte, therefore I couldn't identify it, because I only checked for 16bit values.

Hi, @simat : Thanks for the work. I built a little test setup for the "China BMS". The data is read with a Pi-Zero running gatttool. With the 3 read commands, I found a lot of things and did a little tinkering: Packvoltage: 52.80 V Amperage: -.23 A BMS Name: LH-SP15S001-P14S-60A Cell#: 01...

Hi, I have 4 dead Flatpacks, not opened yet. jean0, did you ever bring the Flatpack2 back to life with the 2 parts? Best regards Bernhard

Good Morning. I am on a build of this great mod here. The over voltage protection is adapted already and I can go from 10 to 14,4 Volts under full load. Now I'm working on the current limiter. Because of the low Quality of the "shunt_connections.jpg" photo, I don't know where exactly to...