pico lcd display quotation

1.14" LCD HAT for Raspberry Pi Pico is a 1.14-inch display expansion board module of 240×135 resolution, 65K RGB colors, clear and colorful displaying effect, with a joystick, designed dedicatedly for Raspberry Pi Pico to expand its engagement via SPI communication by providing standard 40 pins GPIO interface.

Now Create a file "Lcd1_14driver.py" as same content from Pico 1.14" LCD HAT"s github repository in any micropython supported ide (preferred thonny ide) and save it in root location of Raspberry Pi Pico with same name "Lcd1_14driver.py" (without quotes).

This new 3.3V serial character LCD is a good display tool to output information from microcontroller platforms such as Raspberry Pi Pico, microbit, or 3.3V Arduino.

It comes with both Inter IC (I2C or IIC) and Serial Peripheral Interface (SPI) interface. With 2 lines x 16 characters display and 5x8 dots with cursor surely the best choice for many makers to display their data. The power supply required is 3.3V+ and compatible with most of the MCU available in the market. So in this tutorial, we will demonstrate the setup and program of the Raspberry Pi Pico to display on this LCD. Let"s go!

If you are new and have a fresh Pi Pico, you might need this step to help you. You can refer to this tutorial How to Set Up and Program Raspberry Pi Pico to help you set up your new Raspberry Pi Pico. If you confirmed that your Pi Pico is already been installed with MicroPython, you can skip this STEP and go straight to the next step.

Boot up the computer to program the display. In this tutorial, I am using Raspberry Pi 400 as my computer to access Thonny Python IDE for coding. You can use any computer or laptop as long as it has Thonny Python IDE to program the Pi Pico. To program the display, we need the library or the "driver" of this LCD. You can get the library at this GitHub LCM1602-14_LCD_Library created by Bhavithiran. The following picture will show you on how to download the file from GitHub:

I2C or Inter-Integrated Circuit is the communication protocol that only uses two wires for the communication which are data (SDA) and another, the clock (SCL). The communication address between this LCD and the device is 62 (DEC)or0x3E. First, let"s program to display "Hello World" on this LCD with I2C protocol using MicroPython. Below shows the circuit diagram to set up the LCD display with I2C protocol on Pi Pico :

SPI or Serial Peripheral Interface is the four wire-based full-duplex communication protocol that consists of four wires for the communication which are MOSI (master out slave in), MISO (master in slave out), SCL(serial clock that produces by the master) and SS(slave select line which use to select specific slave during the communication). Here, we will learn on how to display "Hello World" on this LCD with SPI protocol using MicroPython. Below show the circuit diagram to setup the LCD display with SPI protocol on Pi Pico :

As we know, Pi Pico was coming with a temperature sensor built-in. So, how about we make some application with it and display the temperature on LCD. This could help us to revise what we learnt from above. Below I included the code for both protocols, you may modify, improve and it is good for you to code by yourself. The explanation of how the code works are been included in the code(comment view).

Temperature display for I2C protocol code :from LCD_I2C import * #import LCD I2C library import math import machine import utime _tempSensor = machine.ADC(machine.ADC.CORE_TEMP) #initialize temperature sensor in Pi Pico lcd = LCD(sda=2, scl=3) #I2C communcation conv = 3.3 / (65535) #convert raw reading from sensor to voltage lcd.set_cursor(0,0) lcd.write("Temperature :") lcd.set_cursor(3,1) lcd.write("Deg Celcius") while True: reading = _tempSensor.read_u16() * conv #analog input read and apply the conversion factor temperature = 27 - (reading - 0.706)/0.001721 #convert temperature to degree celcius lcd.set_cursor(0,1) lcd.write(str(math.trunc(temperature))) #display the temperature and round off it utime.sleep(1)

Temperature display for SPI protocol code :from LCD_SPI import * #import LCD_SPI library import math import machine import utime _tempSensor = machine.ADC(machine.ADC.CORE_TEMP) #initialize temperature sensor in Pi Pico lcd = LCD(sck=2, tx=3, cs=5) #SPI communcation conv = 3.3 / (65535) #convert raw reading from sensor to voltage lcd.set_cursor(0,0) lcd.write("Temperature :") lcd.set_cursor(3,1) lcd.write("Deg Celcius") while True: reading = _tempSensor.read_u16() * conv #analog input read and apply the conversion factor temperature = 27 - (reading - 0.706)/0.001721 #convert temperature to degree celcius lcd.set_cursor(0,1) lcd.write(str(math.trunc(temperature))) #display the temperature and round off it utime.sleep(1)

In the conclusion, this 3V3 Serial character LCD is an amazing display device because of available in two types of serial communication. This could ease people who want to use SPI communication at the same time experiment with I2C. The table below shows the simple comparison between two communication protocols for this product.Inter-Integrated Circuit (I2C)Serial Peripheral Interface (SPI)

hello_world_spi.pyand hello_world_i2c.pyare only the example code for you to try to run and see whether the display is working or not. You may improve, modify, update or create your own code. However, always include the library due to the hardware instruction set so that the display can work.

The Raspberry Pi foundation has just release their brand new Pi Pico microcontroller. This low-cost microcontroller board features a powerful new chip,

This is an E-Ink raw display, 2.13inch, 250×122 resolution, with embedded controller, communicating via SPI interface for the Pi Pico. Due to the advantages lik..

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The Raspberry Pi foundation has just release their brand new Pi Pico microcontroller. This low-cost microcontroller board features a powerful new chip,

This is an E-Ink raw display, 2.13inch, 250×122 resolution, with embedded controller, communicating via SPI interface for the Pi Pico. Due to the advantages lik..

This is an E-Ink raw display, 2.9inch, 296×128 resolution, with embedded controller, communicating via SPI interface for the Pi Pico. Due to the advantages like ..

This Pico Dual GPIO (General Purpose In/Out) Expansion board is extremely useful if you prototype on the Raspberry Pi Pico. Two sets of 2x20 male header, allows ..

This is white on black 1.3 inch display for the Pi Pico. The display use the SH1107 driver, supports a resolution of 64×128 pixels, and uses SPI/I2C to interface with..

This is white on black 2.23 inch display for the Pi Pico. The display use the SSD1305 driver, supports a resolution of 128×32 pixels, and uses SPI/I2C to interface w..

The Raspberry Pi foundation has just release their brand new Pi Pico microcontroller. This low-cost microcontroller board features a powerful new chip,

This is an E-Ink raw display, 2.13inch, 250×122 resolution, with embedded controller, communicating via SPI interface for the Pi Pico. Due to the advantages lik..

This is an E-Ink raw display, 2.9inch, 296×128 resolution, with embedded controller, communicating via SPI interface for the Pi Pico. Due to the advantages like ..

The Pico-RTC-DS3231 is a RTC expansion module specialized for Raspberry Pi Pico. It incorporates high precision RTC chip DS3231 and uses I2C bus for communication. Mo..

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This Pico Dual GPIO (General Purpose In/Out) Expansion board is extremely useful if you prototype on the Raspberry Pi Pico. Two sets of 2x20 male header, allows ..

This is white on black 1.3 inch display for the Pi Pico. The display use the SH1107 driver, supports a resolution of 64×128 pixels, and uses SPI/I2C to interface with..

This is white on black 2.23 inch display for the Pi Pico. The display use the SSD1305 driver, supports a resolution of 128×32 pixels, and uses SPI/I2C to interface w..

From what I can tell, to display a special character you will have to send a hexadecimal string which is converted by the display driver according to its charset.

The whole documentation for your display driver is available here. But, if you just want to look into the charset, you can find it on wikipedia as well.

In the charset, the character you"re looking for is located in the bottom right corner. It"s binary identifier – which you can identify by looking at the table head and the beginning of its corresponding row – is in this case 11011111. However, the SERLCD want"s you to send hexadecimal to it.

When the Raspberry Pi Pico was released, UK retailer Pimoroni were the first to market with a slew of add-ons for the latest Pi. The Pico Display retails for around $20 and is a small IPSscreen with pushbuttons and RGB LED that connects directly to the Pico and acts as a fun introduction to writing code that will appear on the screen. While it may just be “a bit of fun” for most, Pico Display and the Raspberry Pi Pico have enough power to competently create games and animations in a package no larger than a pack of gum.

The Pico Display is a pack, a term used by Pimoroni to describe a board which attaches to the pins of a Raspberry Pi Pico, in much the same way as a backpack. Measuring just 2 x 1 x 0.3 inches (53 x 25 x 9mm) Pico Display is only slightly larger than the Pico itself. Dominating the Pico Display is a 1.14 inch 240 x 135 pixel IPS LCD screen. Power to the Pico Display is sent via the 3V3 GPIO pin and the Pico Display communicates with the Raspberry Pi Pico via an SPI interface. Also present on the Pico Display are four pushbuttons (A,B,X,Y) and a single RGB LED.

To use the Pico Display we need to flash Pimoroni’s custom version of MicroPython which has the MicroPython libraries for this and other boards in their range. There are also C/C++ libraries for Pico Display should you require them.

To get a feel for Pico Display we looked to the demos and tried a few out. The first demo that we saw, demo.py, draws random sized and colored circles on the screen. These circles bounce around the screen giving the illusion that they are bound to the laws of physics. Even with 100 circles bouncing around the screen everything ran smoothly.

Once our logic problem was solved, we had scrolling text and random colors. But what next? The four buttons at the corners of the screen had not yet been used, so we adapted our code to include conditional statements that would look for a button press and then run the block of code associated with that condition. In our case it was three different text strings, two with randomly chosen colors and one with a set text color and different background color. The MicroPython library for Pico Display is easy to use, once you understand the process of how it updates the screen

As this is a pack, despite using only a handful of GPIO pins, it denies access to all of them and this will limit where and how it can be used. If you would like to make a simple scrolling text name badge or inspirational quotes then Pico Display is for you.

But this board is not limited to merely text. It can also be used to make your own video games such as Tetris. If you would like to use the Pico Display with another board, then you would need to purchase the Pico Omnibus two way expander or the Pico Decker quad expander, but be mindful of the GPIO pins that each board will use, as clashes will prevent the boards from working.

Pimoroni’s Pico Display is a low cost way to create unique animated projects with your Raspberry Pi Pico. Using the Pico Display with MicroPython is simple and we can get decent results with very little code.

Like the Pico Unicorn pack, the Pico Display is more of a means to learn a new skill while having fun, than a serious board to solve a problem. However, this is not a negative as the Pico Display uses the same library as the Pico Base Explorer and that means the skills learnt on one are transferable to the other.