BMS Project
About the BMS Project PCB
BMS Project is an open source AVR/Arduino PCB design by tjorvenhillmann, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 46 components from 19 distinct parts.
Its main chip is the Arduino_Mega2560_Shield, from the AVR/Arduino family. Other key parts include the LM358 and Buck. By type, the board carries 21 resistors, 5 connectors, 5 switches, 4 ICs, 4 modules and 1 transistor.
It belongs with the power & battery and sensors designs in this gallery.
From the project
Repository for Arduino & ESP source code for a initial version of a battery management system. The BMs meaures individual cell voltages, as well as current and temperatures. SOC and SOH algorithms will be implemented additionally.
Main components on the BMS Project
BMS Project bill of materials (BOM)
46 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LM358 | DIP-8_W7.62mm | U1, U2 |
| 1 | Buck | Buck_LM2596 | U3 |
| 1 | ~ | CAN_Board | U4 |
| 4 | Prototyping_Wood_Hole | Prototyping_Wood_Hole | M1, M2, M3, M4 |
| 1 | Q_PMOS_GSD | SOT-23 | Q1 |
| 1 | Conn_01x20_Pin | IDC-Header_2x10_P2.54mm_Vertical | J1 |
| 2 | Conn_01x01_Socket | Banana_Jack_1Pin | J2, J6 |
| 1 | ESP32_power | TerminalBlock_bornier-2_P5.08mm | J4 |
| 1 | Display_power | TerminalBlock_bornier-2_P5.08mm | J5 |
| 1 | Fuse | Fuse_1206_3216Metric | F1 |
| 1 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | Pin_17 | Prototyping_Pad_Data | PAD1 |
| 1 | Pin_19 | Prototyping_Pad_Data | PAD2 |
| 4 | SW_Push | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1, SW3, SW4, SW5 |
| 1 | SW_SPDT | SW_Slide_1P2T_CK_OS102011MS2Q | SW2 |
| 1 | Arduino_Mega2560_Shield | Arduino_Mega2560_Shield | XA1 |
| 1 | 10u | C_0805_2012Metric | C1 |
| 20 | 100k | R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8 +12 |
| 1 | 4.7k | R_0805_2012Metric | R17 |
BMS Project design files
The KiCad project lives in the tjorvenhillmann/BMS-Project-WS23 repository on GitHub; these links point at the commit this page was built from.
BMS Project: common questions
What microcontroller does the BMS Project use?
The BMS Project is built around the Arduino_Mega2560_Shield, from the AVR/Arduino family.
How big is the BMS Project PCB?
The BMS Project measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BMS Project?
46 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the BMS Project design files?
From the tjorvenhillmann/BMS-Project-WS23 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the BMS Project design in my own project?
The repository has no license, so all rights stay with tjorvenhillmann. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the BMS Project without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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