Python across the USA: This is the Bus.
summary
A converted International 3800 school bus carries flexible solar panels on a 55 foot run and averages about 500W out of ~700W rated; four 6V lead‑acid batteries are paired to a 12V bank totaling roughly 5 kilowatt hours usable. Power monitoring uses shunts read 15 times/sec, averaged every 2s, fed via MQTT to a Raspberry Pi running Stray Electrons, InfluxDB and Home Assistant; fridge is a Wi‑Fi Dometic 94z, inverter sees only short AC loads, and the trip logs include 71 off-grid days across ~35 states.
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chapters (10)
- 0:00Start
- 1:46The Journey at a Glance
- 4:38Why were we able to do it?
- 6:28The Power System
- 7:02Volts and Amps (for off-grid systems architecture)
- 9:27Battery Config
- 10:48Other voltages
- 12:09Shunts: how we measure amps
- 13:47What stray_electrons does
- 13:59Our Raspberry Pi works hard • Power Management
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