Raspberry Pi Pico with LCD & SSD1306 OLED Display
Displays are most important part of a electronics project. For an IoT based project or an non IoT based projects, displays are required. In this tutorial we will learn about connecting a Raspberry Pi Pico with LCD & SSD1306 OLED display. You can use either of the display in your project using raspberry pi pico or pico W.
This entire project is coded using MicroPython. It can be helpful for those who are planning to start with MicroPython. We are using a temperature sensor to measure the temperature and display the data in degree Celsius as well as degree Fahrenheit.
- Raspberry Pi PICO
- DS18B20 Temperature Sensor
- OLDE Display SSD1306 SPI
- I2C 16X2 LCD Display or I2C LCD converter
- Jumper Cables
I2C LCD Display module
LCD Display module is used to display text, graphics or images. I2C LCD Display module operates in the I2C bus protocol and has a standard 8-bit data bus. The module has an 8bit data bus and can support up to 256 characters. It is a single-chip solution and can be interfaced with a microcontroller using the I2C bus. I2C LCD Display module has a simple data transfer protocol and available in a 8×8 or 16×16 pixel format.
The sensor DS18B20 measures the temperature and sends the data to Raspberry Pi Pico. Further it shows the data in LCD and in 128×64 oled display.
There are 2 displays connected with Pi Pico along with the sensor. The pin details are given in the table format and the connection diagram is shown below. For I2C LCD, the SDA and SCL pin is connected to Pin 1 and Pin 2 of Raspberry Pi PCIO respectively.
Raspberry Pi Pico
Pin 36 3.3v
Pin 8 GND
The python code contains libraries and the actual code. You can download the code from the given link and open it using Thonny python editor. Unzip the file and upload it in your raspberry pi pico. Do not rename any python file present in the folder with out knowing the code properly.
Building & Testing
We have connected the components on a breadboard as per the connection diagram. Now we have uploaded the code and powered the entire project.
The DS18B20 temperature sensor will start measuring the temperature and display it in OLED display as well as LCD display as shown below. After every 3 seconds the temperature data will change and get updated in LCD and oled displays.
In this tutorial we have learnt to interface DS18B20 temperature sensor with raspberry pi pico along with oled and LCD display together. The entire library and code is in micro python language. If you like this project, then share it will your friends and other’s who are looking for micro python projects.
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