change of gain for ADC in i2c-power

r-map · Sep 26, 2023 · 37b70f7 · 37b70f7
1 parent a450ad0
commit 37b70f7
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Showing 3 changed files with 14 additions and 1 deletion.
diff --git a/platformio/stima_v3/i2c-power/src/i2c-power-config.h b/platformio/stima_v3/i2c-power/src/i2c-power-config.h
@@ -104,7 +104,7 @@ correctly during I2C communication.
 
 #define ADC_I2C_ADDRESS                               ADC_VDD_I2C_ADDRESS
 
-// max value in mV to be applied before partitor to get max ADC input (6.144 V)
+// max value in mV to be applied before partitor to get max ADC input (2.048 V)
 #define CONFIGURATION_DEFAULT_ADC_VOLTAGE_MAX_PANEL     (30000)
 #define CONFIGURATION_DEFAULT_ADC_VOLTAGE_MAX_BATTERY   (15000)
 

diff --git a/platformio/stima_v3/i2c-power/src/i2c-power.h b/platformio/stima_v3/i2c-power/src/i2c-power.h
@@ -414,6 +414,13 @@ void init_pins(void);
 */
 void init_wire(void);
 
+/*!
+\fn void init_adc(void)
+\brief Init ADC converter.
+\return void.
+*/
+void init_adc(void);
+
 /*!
 \fn void init_spi(void)
 \brief Init SPI library.

diff --git a/platformio/stima_v3/i2c-power/src/i2c-power.ino b/platformio/stima_v3/i2c-power/src/i2c-power.ino
@@ -36,6 +36,7 @@ void setup() {
   init_buffers();
   init_wire();
   init_rtc();
+  init_adc();
   #if (USE_TIMER_1)
   init_timer1();
   #endif
@@ -260,6 +261,11 @@ void init_wire() {
   Wire.onReceive(i2c_receive_interrupt_handler);
 }
 
+void init_adc() {
+  //+/-2.048V range = Gain 2 (default)
+  adc1.setGain(GAIN_TWO);
+}
+
 void init_spi() {
 #if (ENABLE_SDCARD_LOGGING)      
   SPI.begin();