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Implement battery voltage monitoring

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Add power subsystem.
Add PWR_VOLT_PIN, PWR_VOLT_SCALE, PWR_VOLT_LPF_A parameters.
Support BATTERY_STATUS mavlink messages streaming.
Add pw cli command.
Add voltage field to pyflix library.
pyflix@0.12.
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Oleg Kalachev
2026-04-22 11:35:37 +03:00
parent d8591ea2a9
commit 51cd5fc691
13 changed files with 64 additions and 2 deletions
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docs/usage.md
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@@ -146,6 +146,15 @@ If using brushless motors and ESCs:
> [!CAUTION]
> **Remove the props when configuring the motors!** If improperly configured, you may not be able to stop them.
### Battery voltage monitoring
ESP32 ADC can measure only up to 3.3 V, so you need to use a voltage divider to monitor the battery voltage. To enable voltage measurement, set the following parameters:
1. `PWR_VOLT_PIN` — GPIO pin number where the voltage divider is connected (*-1* to disable).
2. `PWR_VOLT_SCALE` — voltage divider coefficient (*2* for two equal resistors).
After this setup, you should see the battery voltage in QGroundControl top panel or using `pw` command in the console.
### Important: check everything works
1. Check the IMU is working: perform `imu` command in the console and check the output: