BMS-and-offgrid-photovoltaic-management-system
kwiecinski
Project contains BMS for lead-acid batteries and ESP-based board used to pull information from EASUN offgrid inverter, energy meters and sensors. It show informations od displays and use ESPhome to send it to Home Assistant..
Components (31)
| Reference | Value | Description |
|---|---|---|
| Q1-Q3,Q5-Q14,Q16-Q19,Q21 | BC807 | 0.8A Ic, 45V Vce, PNP Transistor, SOT-23 |
| Q4,Q15 | BC817 | |
| Q20 | IRF540N | 33A Id, 100V Vds, HEXFET N-Channel MOSFET, TO-220 |
| U1 | 74HC14 | Hex inverter schmitt trigger |
| U2,U14-U16 | CA56-12SURKWA | 4 digit 7 segment hyper red LED, common anode |
| U3,U4 | ST485EBDR | Half duplex RS-485/RS-422, 5 Mbps, ±15kV electro-static discharge (ESD) protection, no slew-rate, with low-power shutdown, with receiver/driver enable, 256 transceiver on the bus - 40 to 85 °C, SOIC-8 |