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STD ESPHome Smart Battery
Project Status:
Ongoing
License: MIT License
- 0
Description
DYI smart battery
- Built on ESP32
- Using bluetooth to communicate with BMS
- Relay module connection to toggle external balancer
- External display with button
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | link | |
|---|---|---|---|---|---|---|
| 1 | to SHT21 | H1 | HDR-TH_4P-P2.54-V-M | 1 | Header-Male-2.54_1x4 | |
| 2 | to Display board | H2 | HDR-TH_5P-P2.54-V-M | 1 | 210-91-05GB01 | |
| 3 | IRF520NPBF | Q1 | TO-220-3_L10.0-W4.5-P2.54-T | 1 | IRF520NPBF | |
| 4 | NODEMCU-32SLUA | U1 | COMM-TH_NODEMCU-32SLUA | 1 | NODEMCU-32SLUA | |
| 5 | to Relay module | U2 | HDR-TH_3P-P2.54-V-F | 1 | KH-2.54FH-1X3P-H8.5 | |
| 6 | 5V DC | U3 | CONN-TH_XY308-2.54-2P | 1 | XY308-2.54-2P | |
| 7 | to Main board | H4 | HDR-TH_5P-P2.54-V-M | 1 | 210-91-05GB01 | |
| 8 | button6*6*8 | KEY1 | KEY-TH_4P-L6.0-W6.0-P4.50-LS7.5 | 1 | button6*6*8 | |
| 9 | SSD1306-128x64-OLED-I2C | U4 | SSD1306_DISPLAY-I2C | 1 | SSD1306-128x64-OLED-I2C | wICUcuL3l |
| 10 | XL4015 MODULE | U5 | XL4015-5A-MODULE | 1 | MODUL STEPDOWN XL4015 COPY | |
| 11 | 1-Channel_Relay_Module | U6 | RELAY MODULE 1 RELAYS | 1 | 1-Channel_Relay_Module |
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