CategoriesRaspberry Pi Pico

#5 Graphic Monitor Project with PicoBricks

When we look at the electronic items around us, you realize that they have many replaceable features and they are designed by engineers to be most useful to the user. Such as lighting systems, cooking systems, sound systems, cleaning systems. The way it works, the amount, the method, etc., by many system users. features can be programmed to change.

In robotic projects, in the processes of changing the sound level, changing the motor speed, changing the brightness of the light, the electrical voltage is sent in a way that creates a lower or higher effect. By decreasing the frequency of the electrical signal to the component, it can be operated at a lower level, and by increasing the frequency of the outgoing electrical signals, it can be operated at a higher level.

In systems without a screen, real-time graphic monitors are used to monitor some sensors and variables involved in the operation of the system. Graphic monitors make it very easy to detect the fault.

Details and Algorithm

In this project, we will prepare a project in which we increase or decrease the brightness of the red LED with a potentiometer. In addition, we will simultaneously monitor the electrical change occurring during this process on the Microblocks graphic monitor. When the picobricks starts, the potentiometer value will be read continuously and the brightness value of the LED will be adjusted. Applications in which the effect of the electrical signal is reduced by changing the frequency is called PWM. We will send the analog values ​​we read from the potentiometer as PWM signals to the red LED and we will be able to adjust the illumination intensity.

Components

1X PicoBricks

Wiring Diagram

You can code and run Picobricks’ modules without wiring. If you are going to use the modules by separating them from the board, you should make the module connections with grove cables.

MicroBlocks Codes of the PicoBricks

You can access the Microblocks codes of the project by dragging the image to the Microblocks Run tab or click the button

MicroPython Codes of the PicoBricks

				
					from machine import Pin,ADC,PWM
from utime import sleep
#define libraries

led=PWM(Pin(7))
pot=ADC(Pin(26,Pin.IN))
#define the value we get from the led and pot.
led.freq(1000)

while True:#while loop
    
    led.duty_u16(int((pot.read_u16())))
    print(str(int((pot.read_u16()))))
    #Turn on the LED according to the value from the potentiometer.
    
    sleep(0.1)#delay
                 
				
			

Arduino C Codes of the PicoBricks

				
					void setup() {
  // put your setup code here, to run once:
  pinMode (7,OUTPUT);//initialize digital pin 7 as an output
  pinMode (26,INPUT);//initialize digital pin 26 as an input
  Serial.begin(9600);//start serial communication


}

void loop() {
  // put your main code here, to run repeatedly:
  int pot_val = analogRead(26);
  int led_val = map(pot_val, 0, 1023, 0, 255);
  digitalWrite(7, led_val);
  Serial.println(led_val);
  //trun on the LED according to the value from the potentiometer
  
  delay(100);//wait


}
				
			

Project Image

Project Video

Project Proposal 💡

As you turn the potentiometer, you can prepare a project that changes the volume of the sound coming out of the buzzer and displays the flowing data on the graphic monitor.

Leave a Reply

Your email address will not be published.