Analog Joystick

Description

The analog joystick includes 2 Potentiometer and one digital switch.

It has 5 connectors:

• GND - connected to GND
• 5V - which is in our cases connected to 3.3V
• VRx - the voltage representing the position in X
• VRy - the voltage representing the position in Y
• SW - 0 if pressed

How to connect it electrically

How to control it in MicroPython

Basic code to generate a 500 Hz signal

reading all values and printing them to the console

 1 #Example usage for ESP32
 2 from machine import Pin, ADC
 3 from time import sleep
 4 # analog inputs for X and Y
 5 analogPinX = ADC(Pin(34))
 6 analogPinY = ADC(Pin(35))
 7 #switching the analog input to 12Bit (0...4095)
 8 analogPinX.atten(ADC.ATTN_11DB)
 9 analogPinY.atten(ADC.ATTN_11DB)
10 # digital input on pin 26
11 sw = Pin(26, Pin.IN, Pin.PULL_UP) # enable internal pull-up resistor
12 
13 while True:
14   analogValX = analogPinX.read()
15   analogValY = analogPinY.read()
16   switch = sw.value()
17 
18   print("x:%s   y:%s   sw:%s" % (analogValX, analogValY, switch))
19  
20   sleep(1)

Background

This is conceptually what is inside the joystick.