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bms-c1

16s / 100A Battery Management System

https://github.com/LibreSolar/bms-c1

Science Score: 13.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • ○
    CITATION.cff file
  • ✓
    codemeta.json file
    Found codemeta.json file
  • ○
    .zenodo.json file
  • ○
    DOI references
  • ○
    Academic publication links
  • ○
    Committers with academic emails
  • ○
    Institutional organization owner
  • ○
    JOSS paper metadata
  • ○
    Scientific vocabulary similarity
    Low similarity (8.4%) to scientific vocabulary

Keywords

bms bq76952 hardware open
Last synced: 6 months ago · JSON representation

Repository

16s / 100A Battery Management System

Basic Info
Statistics
  • Stars: 166
  • Watchers: 17
  • Forks: 44
  • Open Issues: 25
  • Releases: 0
Topics
bms bq76952 hardware open
Created over 4 years ago · Last pushed over 1 year ago
Metadata Files
Readme

README.md

Libre Solar BMS C1

Development Stage Tested prototype, only minor issues left.

This repository contains the files for ongoing development of the Libre Solar BMS C1.

Remark: This BMS was previously named BMS 16S100 SC. It was renamed to C1 (with C for compact/centralized) because the maximum current and supported number of cells depend on the parts actually populated on the PCB, so these specs should not be encoded in the PCB name.

The development of this BMS is funded by the EnAccess foundation.

Schematic: PDF file

Bill of Materials: CSV file or interactive HTML BOM

Firmware repository: LibreSolar/bms-firmware

BMS C1

User manual: libre.solar/bms-c1/manual/

Mechanical CAD file: bms-c1.FCStd

Mechanical BOM: bms-c1bommechanical.csv

Heat sink drawings: 10003_BackPlateAsm.pdf

Test report: testing/v0.3

Features

  • 3 to 16 Li-ion cells in series
  • Continuous current: 70-100A (depending on used MOSFETs and heat sink)
  • Cell types: LiFePO4, Li-ion NMC and others (customizable)
  • Measurements
    • Cell voltages
    • Pack voltage
    • Pack current
    • Pack (2x), MOSFET and shunt temperatures
  • Based on Texas Instruments bq76952
  • Integrated high-side MOSFET switch and current sensor
  • Espressif ESP32-C3 microcontroller
  • Communication interfaces:
    • CAN
    • RS-485 (connector shared with CAN)
    • USB (CDC-ACM and JTAG)
    • USART
    • I2C
    • Bluetooth Low Energy
    • WiFi
  • Hardware features
    • 4-layer PCB
    • M5 screw terminals
    • Heat sink at back side
  • Applications
    • Off-grid storage
    • Light-electric vehicles (LEV)

Firmware

The firmware is developed in a separate repository LibreSolar/bms-firmware.

License

The hardware is licensed under the CERN Open Hardware Licence Version 2 - Weakly Reciprocal.

Documentation is licensed under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) License.

Owner

  • Name: Libre Solar Project
  • Login: LibreSolar
  • Kind: organization
  • Location: Hamburg, Germany

GitHub Events

Total
  • Issues event: 7
  • Watch event: 54
  • Issue comment event: 15
  • Fork event: 7
Last Year
  • Issues event: 7
  • Watch event: 54
  • Issue comment event: 15
  • Fork event: 7

Committers

Last synced: 6 months ago

All Time
  • Total Commits: 53
  • Total Committers: 5
  • Avg Commits per committer: 10.6
  • Development Distribution Score (DDS): 0.17
Past Year
  • Commits: 2
  • Committers: 1
  • Avg Commits per committer: 2.0
  • Development Distribution Score (DDS): 0.0
Top Committers
Name Email Commits
Martin Jäger m****n@l****r 44
Roman PASSLER r****r@g****m 6
Jean Alinei j****i@o****g 1
Roman PASSLER r****r@e****t 1
Vasyl Mosiiuk v****k@g****m 1
Committer Domains (Top 20 + Academic)
e-bs.at: 1 owntech.org: 1 libre.solar: 1

Issues and Pull Requests

Last synced: 6 months ago

All Time
  • Total issues: 59
  • Total pull requests: 12
  • Average time to close issues: 6 months
  • Average time to close pull requests: 10 days
  • Total issue authors: 25
  • Total pull request authors: 4
  • Average comments per issue: 3.05
  • Average comments per pull request: 2.92
  • Merged pull requests: 12
  • Bot issues: 0
  • Bot pull requests: 0
Past Year
  • Issues: 8
  • Pull requests: 0
  • Average time to close issues: N/A
  • Average time to close pull requests: N/A
  • Issue authors: 5
  • Pull request authors: 0
  • Average comments per issue: 1.5
  • Average comments per pull request: 0
  • Merged pull requests: 0
  • Bot issues: 0
  • Bot pull requests: 0
View more stats
Top Authors
Issue Authors
  • EarthLord (14)
  • martinjaeger (8)
  • jalinei (4)
  • pasrom (4)
  • B-hafedh (4)
  • JochenKr (4)
  • Ananyaaynana (2)
  • vybhav-nag (2)
  • jlmxyz (1)
  • photon-delight (1)
  • HGQ21102 (1)
  • joshuasiumao (1)
  • nik21-nik (1)
  • fl4p (1)
  • Morynmoh (1)
Pull Request Authors
  • pasrom (12)
  • martinjaeger (6)
  • jalinei (2)
  • vasylmosiiuk (1)
Top Labels
Issue Labels
enhancement (8) bug (6) information (5) question (4) specification (3) wontfix (2) help wanted (1)
Pull Request Labels

Dependencies

.github/workflows/pandoc.yml actions
  • actions/checkout v2 composite
  • docker://pandoc/latex latest-ubuntu composite
  • peaceiris/actions-gh-pages v3 composite
.github/workflows/kibot_checks.yml actions
  • INTI-CMNB/KiBot v2_k7 composite
  • actions/checkout v3 composite
.github/workflows/kibot_diff.yml actions
  • INTI-CMNB/KiBot v2_k7_1_6_3 composite
  • actions/checkout v3 composite
  • actions/upload-artifact v4 composite
.github/workflows/kibot_run_comment.yml actions
  • actions/download-artifact v4 composite
  • peter-evans/create-or-update-comment v3 composite
  • peter-evans/find-comment v2 composite