polymachine/b-parasite-esp32
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Update adc.c

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chucknorris101 2022-11-07 09:47:17 -06:00 • committed by GitHub
parent 359fc4bc66
commit 9c272383c4
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1 changed files with 2 additions and 2 deletions
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code/b-parasite/src/prst/adc.c
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@ -102,8 +102,8 @@ prst_adc_batt_read_t prst_adc_batt_read() {
static inline double get_soil_moisture_percent( static inline double get_soil_moisture_percent(
double battery_voltage, nrf_saadc_value_t raw_adc_output) { double battery_voltage, nrf_saadc_value_t raw_adc_output) {
const double x = battery_voltage; const double x = battery_voltage;
const double dry = -12.9 * x * x + 111 * x + 228; const double dry = 59.66 * x + 331;
const double wet = -5.71 * x * x + 60.2 * x + 126; const double wet = 34.44 * x + 173;
#if PRST_ADC_SOIL_DEBUG #if PRST_ADC_SOIL_DEBUG
NRF_LOG_INFO("[adc] batt: " NRF_LOG_FLOAT_MARKER, NRF_LOG_FLOAT(x)); NRF_LOG_INFO("[adc] batt: " NRF_LOG_FLOAT_MARKER, NRF_LOG_FLOAT(x));
NRF_LOG_INFO("[adc] dry: " NRF_LOG_FLOAT_MARKER " wet: " NRF_LOG_FLOAT_MARKER, NRF_LOG_INFO("[adc] dry: " NRF_LOG_FLOAT_MARKER " wet: " NRF_LOG_FLOAT_MARKER,