添加电池电量检测

README.md

@@ -272,4 +272,6 @@ TODO:
        12. 优化定时器周期
        13. 支持低电量事件
 
+       14. 添加设备激活逻辑，根据设备是否通过过时间来判断当前是否彻底断电。
+
 ```

app/src/one_conduction/one_conduction_board.c

@@ -249,8 +249,26 @@ void SingleLeadECG_battery_init() {}
 void SingleLeadECG_battery_deinit() {}
 
 int16_t SingleLeadECG_battery_get_adc_val() { return SingleLeadECG_adc_get_val(BATTERY_ADC_CHANNEL); }
-int16_t SingleLeadECG_battery_val() { return 50; }
-void    SingleLeadECG_battery_charge_detect_io_init() {  //
+int16_t SingleLeadECG_battery_val() {  //
+
+  static const float maxv = 4.0;
+  static const float minv = 3.5;
+
+  float voltage = SingleLeadECG_battery_get_adc_val() / 4096.0 * 3.3 / 2.0* 3;
+  if (voltage > maxv) voltage = maxv;
+  if (voltage < minv) voltage = minv;
+
+  float   percent     = (voltage - minv) / (maxv - minv) * 100 + (float)0.1 /*加0.1是为了避免999.999时显示电量为90*/;
+  int16_t percent_int = (int16_t)percent;
+  if (percent_int < 10 && percent_int != 0) {
+    percent_int = 3;
+  } else {
+    percent_int = percent_int / 10 * 10;
+  }
+  // ZLOGI("battery %d ", SingleLeadECG_battery_get_adc_val());
+  return percent_int;
+}
+void SingleLeadECG_battery_charge_detect_io_init() {  //
   nrf_gpio_cfg_sense_input(BATTERY_CHARGE_DETECT_PIN, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_NOSENSE);
 }
 bool SingleLeadECG_battery_charge_get_state() { return nrf_gpio_pin_read(BATTERY_CHARGE_DETECT_PIN) == 0; }