esp32s3 + c3 ADC (#5231)

* save

* esp32s3: save

* adc

* worker on esp32s3

* worker after flash arduino

* save

* fix

* simple adc

* added adc

* esp32s3-adc: rm debug

* esp32s3-adc: clear

* last refactor

* linters

* esp32s3-adc: recover example

* esp32s3-adc: reuse fuse for esp32c3

* esp32s3-adc: refactor bugs

* esp32s3-adc: fix adc2 for esp32c3

* esp32s3-adc: group to adc files

* esp32s3-adc: revert changing board

* esp32s3-adc: recover example adc

* esp32s3-adc: fix edge values adc & added smoketests

* esp32s3-adc: rename methods

* esp32s3-adc: extends adc tests

* esp32s3-adc: drop debug

* esp32s3-adc: added ADCX const

* esp32s3-adc: change adc tests

* esp32s3-adc: added comment for esp32c3

* esp32s3-adc: drop debug empty loops

* esp32s3-adc: drop duplicate gpio

* esp32s3-adc: change return values to 0..65520

src/examples/adc/adc.go

@@ -5,25 +5,15 @@ import (
 	"time"
 )
 
-// This example assumes that an analog sensor such as a rotary dial is connected to pin ADC0.
-// When the dial is turned past the midway point, the built-in LED will light up.
-
 func main() {
 	machine.InitADC()
 
-	led := machine.LED
-	led.Configure(machine.PinConfig{Mode: machine.PinOutput})
-
 	sensor := machine.ADC{machine.ADC2}
 	sensor.Configure(machine.ADCConfig{})
 
 	for {
 		val := sensor.Get()
-		if val < 0x8000 {
-			led.Low()
-		} else {
-			led.High()
-		}
-		time.Sleep(time.Millisecond * 100)
+		println(val)
+		time.Sleep(time.Millisecond * 500)
 	}
 }