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Improved device ui battery rendering for more accurate battery indicator

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pelgraine
2026-02-13 18:36:17 +11:00
parent 9ef1fa4f1b
commit 7223395740
1 changed files with 4 additions and 3 deletions
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examples/companion_radio/ui-new/UITask.cpp
+4 -3
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@@ -111,9 +111,10 @@ class HomeScreen : public UIScreen {
void renderBatteryIndicator(DisplayDriver& display, uint16_t batteryMilliVolts) {
// Use voltage-based estimation to match BLE app readings
uint8_t batteryPercentage = 0;
if (batteryMilliVolts > 0) {
// Use the BQ27220 fuel gauge SOC register for accurate percentage.
// Falls back to voltage estimation if the fuel gauge returns 0.
uint8_t batteryPercentage = board.getBatteryPercent();
if (batteryPercentage == 0 && batteryMilliVolts > 0) {
const int minMilliVolts = 3000;
const int maxMilliVolts = 4200;
int pct = ((batteryMilliVolts - minMilliVolts) * 100) / (maxMilliVolts - minMilliVolts);