second commit

src/adc.cpp

@@ -0,0 +1,22 @@
+#include "adc.h"
+
+//电源电压测量
+
+void adc_init()
+{
+    pinMode(ADC_PIN,INPUT);
+}
+
+float adc_read()
+{
+    float Value =0;
+    float power =0;
+    for(uint8_t i = 0; i < 10; i++)
+    {
+        Value = analogRead(ADC_PIN);
+        power += (Value * 3.3 / 4095.0) * 11;
+    }
+    power = power / 10.f + 0.51;
+    // write_log(log_path,"power: " + String(power),10);
+    return power;
+}