~/talk

Decoding battery management data - back in the old school

on YouTube 45m
Talkat linux.conf.au 2020 · 2020-01-13..01-17· [embedded-and-hardware]

speaker

name:Paul Wayper
website:http://mabula.net/

resources

video:https://youtu.be/f8eaT-ezlpE
slides:none on file

summary

USB adapter exposes an RS‑232 stream from a Lithium8 Light pack and the code decodes per‑cell voltages, amp readings and flags (discovering a 3‑byte uptime field and a cell below 2V that needs replacement). Logs are timestamped on a Raspberry Pi, converted with small Python/Perl tools, uploaded incrementally into InfluxDB and plotted in Grafana. Real rides show ~100 A draw at 100 km/h, regenerative negative amps, and the pipeline reliably produces historic graphs and per‑cell alerts.

AI-written summary · about

chapters (9)

  1. 0:00Start
  2. 0:21What shall we talk about?
  3. 13:15Write programs
  4. 19:09Battery management data
  5. 25:18Data decoding lessons
  6. 26:23What data do we have now
  7. 31:13Data into InfluxDB
  8. 32:00Results!
  9. 38:33Bonus content!

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