SerialPrint Values

JoystickControlServo/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(SRCS "Main.c"
+                    PRIV_REQUIRES spi_flash
+                    INCLUDE_DIRS ""
+                    REQUIRES    driver  esp_adc)

JoystickControlServo/main/Main.c

@@ -0,0 +1,27 @@
+// Receive analog input
+
+#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "driver/adc.h"
+
+void app_main(void)
+{
+    uint32_t voltage;
+
+    // Configure ADC1 capture width
+    // 12 bit decimal value from 0 to 4095
+    adc1_config_width(ADC_WIDTH_BIT_12); 
+    // Configure the ADC1 channel (ADC1_CHANNEL_6 - pin 34), and setting attenuation (ADC_ATTEN_DB_11)
+    adc1_config_channel_atten(ADC1_CHANNEL_6, ADC_ATTEN_DB_11);
+
+    while (1) 
+    {
+        // Take an ADC1 reading on a single channel (ADC1_CHANNEL_6 pin 34)
+        // 11dB attenuation (ADC_ATTEN_DB_11) gives full-scale voltage 0 - 3.9V
+        // 4053 ~ 3.86V
+        voltage = adc1_get_raw(ADC1_CHANNEL_6); 
+        printf("%ld \n", voltage);
+        vTaskDelay(100 / portTICK_PERIOD_MS);
+    }
+}