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Better TX congestion detection, don't stall on reading battery status

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Nik Rozman
2026-03-01 21:49:59 +01:00
parent 1bd2ecc339
commit 11baa814c9
2 changed files with 43 additions and 19 deletions
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8
source/battery.cpp
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@@ -31,7 +31,9 @@ void updateBattery() {
float v = readBatteryVoltage(); int pct = batteryPercent(v);
bool chg = (digitalRead(PIN_CHG) == LOW);
ChargeStatus status = chg ? (pct >= 99 ? CHGSTAT_FULL : CHGSTAT_CHARGING) : CHGSTAT_DISCHARGING;
blebas.write(pct);
// Only write BLE Battery Service when connected — blebas.write() blocks on the
// SoftDevice ATT layer and causes 30-40ms loop stalls when called during advertising.
if (Bluefruit.connected()) blebas.write(pct);
lastChargeStatus = status;
#ifdef FEATURE_TELEMETRY
telem.chargeStatus = (uint8_t)status;
@@ -39,7 +41,9 @@ void updateBattery() {
const char* st[] = {"discharging","charging","full"};
Serial.print("[BATT] "); Serial.print(v,2); Serial.print("V ");
Serial.print(pct); Serial.print("% "); Serial.println(st[status]);
if (status == CHGSTAT_DISCHARGING && v < BATT_CRITICAL)
// Critical battery alert — only blink when not connected to avoid blocking BLE scheduler.
// 6 × 160ms = 960ms hard block; skip during active connection.
if (status == CHGSTAT_DISCHARGING && v < BATT_CRITICAL && !Bluefruit.connected())
for (int i=0; i<6; i++) { digitalWrite(LED_RED,LOW); delay(80); digitalWrite(LED_RED,HIGH); delay(80); }
}