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fix ina voltage reading

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liquidraver committed 2026-09-02 08:50:19 +02:00
1 parent 1db0a14c4b
commit 7d2e6ffafa
2 files changed
+20 -11
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zephcore/app/CompanionMesh.cpp
+6 -4
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@@ -1717,16 +1717,18 @@ int CompanionMesh::appendSelfTelemetry(uint8_t *reply, uint8_t permissions)
uint8_t ch = CH_SELF + 1;
for (int j = 0; j < pwr.num_channels; j++) {
if (pwr.channels[j].valid) {
// Voltage: [ch][LPP_VOLTAGE=116][2-byte 0.01V]
// Voltage: [ch][LPP_VOLTAGE=116][2-byte 0.01V signed]
reply[i++] = ch;
reply[i++] = 116;
uint16_t v = (uint16_t)(pwr.channels[j].voltage_v * 100);
int16_t v = (int16_t)(pwr.channels[j].voltage_v * 100);
reply[i++] = (v >> 8) & 0xFF;
reply[i++] = v & 0xFF;
// Current: [ch][LPP_CURRENT=117][2-byte 0.001A]
// Current: [ch][LPP_CURRENT=117][2-byte 0.001A signed]
// Signed: a bidirectional monitor (INA219) reports discharge
// as negative, and an unsigned cast saturates it to 0.
reply[i++] = ch;
reply[i++] = 117;
uint16_t c = (uint16_t)(pwr.channels[j].current_a * 1000);
int16_t c = (int16_t)(pwr.channels[j].current_a * 1000);
reply[i++] = (c >> 8) & 0xFF;
reply[i++] = c & 0xFF;
// Power: [ch][LPP_POWER=128][2-byte 1W]