Skip to content

Add support for VDDHDIV5 voltage measurement #9204

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
brad112358 wants to merge 2 commits into
base: develop
Choose a base branch
from
Open

Add support for VDDHDIV5 voltage measurement #9204

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
3616f58
Add support for VDDHDIV5 voltage measurement
brad112358 Jan 7, 2026
89ae653
Option to fallback to VDDHDIV5 if BATTERY_PIN is connected to ground …
brad112358 Jan 7, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 13 additions & 1 deletion src/Power.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -331,12 +331,24 @@ class AnalogBatteryLevel : public HasBatteryLevel
raw = espAdcRead();
scaled = esp_adc_cal_raw_to_voltage(raw, adc_characs);
scaled *= operativeAdcMultiplier;
#else // block for all other platforms
#else // block for all other platforms
#if BATTERY_PIN != -1 // Skip if pin not used
for (uint32_t i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
raw += analogRead(BATTERY_PIN);
}
raw = raw / BATTERY_SENSE_SAMPLES;
scaled = operativeAdcMultiplier * ((1000 * AREF_VOLTAGE) / pow(2, BATTERY_SENSE_RESOLUTION_BITS)) * raw;
#endif
#if defined(USE_VDDHDIV5) and defined(ARCH_NRF52)
if (scaled <
1000) { // Battery pin not used or not connected to voltage divider, fallback to reading voltage of VDDH pin
for (uint32_t i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
raw += analogReadVDDHDIV5();
}
raw = raw / BATTERY_SENSE_SAMPLES;
scaled = 5 * ((1000 * AREF_VOLTAGE) / pow(2, BATTERY_SENSE_RESOLUTION_BITS)) * raw;
}
#endif
#endif
battery_adcDisable();

Expand Down