move adc read information

Author: Hannes7eicher

content/micropython/01.basics/05.digital-analog-pins/digital-analog-pins.md

@@ -96,18 +96,25 @@ There are four methods to use inside the ADC class: `ADC.init`, `ADC.block()`, `
 
 ### Analog Read
 
-To read an analog pin, we can use the `ADC.read_u16` command. This reads the specified analog pin and returns an integer in the range 0 - 65535. For this, we need to import `ADC` from the `machine` module.
-
-***Note: This is currently only available on the nightly build***
+To read an analog pin, we can use the `ADC.read_u16` command. This reads the specified analog pin and returns an integer in the range 0 - 65535. For this, we need to import `ADC` and `Pin` from the `machine` module.
 
 ```python
-from machine import ADC
+import machine
+import time
+
+# Make sure to follow the GPIO map for the board you are using.
+# Pin 29 in this case is the "A3" pin on the Nano 33 BLE / BLE Sense
+adc_pin = machine.Pin(29) 
+adc = machine.ADC(adc_pin)
 
 while True:
-    adc = ADC("A4")
-    adc.read_u16()
+    reading = adc.read_u16()     
+    print("ADC: ",reading)
+    time.sleep_ms(500)
 ```
 
+***If you are using an [Arduino Nano RP2040 Connect](https://store.arduino.cc/products/arduino-nano-rp2040-connect), you can also do the following: `adc = ADC("A4")`. Check out the example [here](http://localhost:8000/micropython/basics/board-examples#analog-read)***
+
 ## PWM (Pulse Width Modulation)
 
 [PWM](/learn/microcontrollers/analog-output) is used to produce analog results with digital means, by switching ON/OFF a signal rapidly.

content/micropython/01.basics/06.board-examples/board-examples.md

@@ -49,6 +49,20 @@ Before you start using the board's pins, it might be a good idea to check out th
 | D20/A6  | GPIO36 | ADC/NINA-W102 |
 | D21/A7  | GPIO35 | ADC/NINA-W102 |
 
+### Analog Read
+
+***Note: This is currently only available on the nightly build***
+
+To read an analog pin, we can use the `ADC.read_u16` command. This reads the specified analog pin and returns an integer in the range 0 - 65535. For this, we need to import `ADC` from the `machine` module.
+
+```python
+from machine import ADC
+
+while True:
+    adc = ADC("A4")
+    adc.read_u16()
+```
+
 ### Sensors
 
 #### IMU (LSM6DSOX)
@@ -474,6 +488,10 @@ In the MicroPython port of the Nano 33 BLE board, the pinout is the same as the
 | D20/A6  | 28       |
 | D21/A7  | 3        |
 
+### Analog Read
+
+***The following example is currently only possible with the nightly build***
+
 ### LED Control
 
 There are 3 different LEDs that can be accessed on the Nano 33 BLE: **RGB, the built-in LED** and the **power LED**.