Category: Development Kit
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How to use MG90S Servo Motor with Raspberry Pi Pico using micropython
I have this MG90S small servo motor. It is supposed to go from 0° to 180°. Because of their low cost, they have a short range which is less than 180°. Some go to 135°, 100° or 150°. PWM signal required by servo to move. Frequency = 50HzTime Period = 0.02 Second or 20 mili…
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Raspberry Pi Model 3b+ Custom Case with Camera Mounting
I made this enclosure using the MDF sheet. It has all the port openings that raspberry pi has. I made an attachment on the side to mount the camera.
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How to use bipolar stepper motor using l298n module and raspberry pi pico w
The stepper motor that i have is a bipolar stepper motor. On it one side there is information about it. TYPE: 17PM-k310-33VS NO. T4508-03 Minebea-Matsushita Motor Corporation Made in Thailand It is a NEMA 1717 stands for 1.7inches Raspberry Pi Pico W L298N Module GND GND GP0 IN1 GP1 IN2 GP2 IN3 GP3 IN4 The…
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12V PC Fan Control Using Raspberry Pi Pico W By PWM
How to control a 12V PC fan using Pulse Width Modulation (PWM) signals with the Raspberry Pi Pico W board and an L298N motor driver module. I will use the MicroPython programming language and the Thonny IDE to write and run the code. Raspberry Pi Pico W L298n Module GP9 IN1 GND GND VSYS(Connect this…
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How to Use C SDK to Create UF2 file which Interface Ultrasonic Sensor with Raspberry Pi Pico
Hardware setup HC-SR04 Raspberry Pi Pico VCC VSYS GND GND Trig GP2 ECHO GP3 I am using raspberry pi model 3 b+ for the code compilation. If everything worked, you will have your ulf2 file in your build directory
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Interfacing a 5V Ultrasonic Sensor with 3.3V GPIO of Raspberry Pi Pico: A Voltage Divider Solution
I have an old HC-Sr04 ultrasonic sensor. I don’t know if it’s GPIO voltage compatible with the 3.3V microcontroller. On the internet, I found that the old sensors work with 5V. So, I used a voltage divider made of 1K ohm and 1.5K ohm Surface mount resistors. To bring down the 5V to a suitable…
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How to Transmit Data via UART with ATmega328P in AVR C using Arduino IDE
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How to Initialize UART Communication with ATmega328P in AVR C using Arduino IDE
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Raspberry Pi Pico Internal Temperature Sensor Based Fan Speed Control using PID Algorithm with Anti-Windup Logic
This system uses the Raspberry pi pico development board which has an RP2040 microcontroller. The RP2040 microcontroller has an internal temperature sensor. Using its internal temperature sensor I have devised a very simple setup that demonstrates the PID algorithm. Using PID Algorithm control technique I am controlling the fan speed by changing the PWM duty…
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Wireless Plant Watering System using Raspberry Pi Pico W
Every morning my mom waters the plant. She has to water them every day and sometimes in summer, she must provide water twice a day. In winter plant needs water when necessary. Solution: For the above problem, I developed this project using raspberry pi pico w. Here is what it does: Schematic Diagram Micropython Code