This new Adafruit Pi Plate makes it easy to use a blue and white 16x2 Character LCD. Adafruit really like the 16x2 Character LCDs Adafruit stock in the shop. Unfortunately, these LCDs do require quite a few digital pins, 6 to control the LCD and then another 1 to control the backlight for a total of 7 pins. That's nearly all the GPIO available on a Pi!
With this in mind, Adafruit wanted to make it easier for people to get these LCD into their projects so they devised a Pi plate that lets you control a 16x2 Character LCD, up to 3 backlight pins AND 5 keypad pins using only the two I2C pins on the R-Pi! The best part is you don't really lose those two pins either, since you can stick i2c-based sensors, RTCs, etc and have them share the I2C bus. This is a super slick way to add a display without all the wiring hassle.
New, Adafruit have updated this Pi plate so the buttons on on the right side, which makes it a little more mechanically stable
This pi plate is perfect for when you want to build a stand-alone project with its own user interface. The 4 directional buttons plus select button allows basic control without having to attach a bulky computer.
The plate is designed for both Revision 1 and Revision 2 Raspberry Pi's. It uses the I2C (SDA/SCL) pins. Adafruit have a special xtra-tall 26-pin header so the plate sits above the USB and Ethernet jacks. For Pi Model B+ and Pi 2, the resistors sit right above the new set of USB ports. To keep them from shorting against the metal, a piece of electrical tape must be placed onto the USB ports.
This product comes as a kit! Included is a high quality PCB and all the components (buttons, header etc). A 16x2 Character blue&white monochrome LCD is included! Assembly is easy, even if you've never soldered before and the kit can be completed in 30 minutes. Check the product tutorial page for assembly instructions before purchasing You may get a 2-row or 1-row connector LCD, either will work fine.
We also have some handy Python code to help you easily talk to the LCD and buttons You can also easily query the 5 keypad buttons to get input through the library, so you get extra buttons without using any more pins. The buttons are automatically de-bounced inside the library.
At this time, the code and plate can control the white backlight on or off. There is no support for PWM control of the backlight at this time, so if you need to have more granular control of the backlight, this plate can't do that (the I2C expander does not have PWM output).
Product page with tutorials, documentation and assembly information
- Dimensions: 2.2" x 3.35"
- Comes with a 16x2 Blue & White LCD
- Plug and play with any Raspberry Pi
- Uses only the I2C (SDA/SCL) pins
- This board/chip uses I2C 7-bit address 0x20.
- PCB files, schematic, and Fritzing available in the product tutorial
This product is listed in:
Documentation and Resources:
- Raspberry Pi Workshop for Beginners
Welcome to the Raspberry Pi Workshop for Beginners! Here you'll be able to follow along with our series of bite-sized videos that cover everything you'll need to know to get started with your Raspberry Pi, and start making awesome projects. My name...
- How to Rotate Raspberry Pi Video Display / Screen
Like many things in the Raspberry Pi ecosystem, functions such as rotating the display output can be a little unintuitive at first. Or perhaps you’re not sure how to get rid of that annoying black outline on your screen. So, we’ve put tog...
- The Maker Revolution
The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
- Maintaining a Project with Git
Let's have a very quick look at Git and Github - Git is an enormous topic, so this won't be an exhaustive tutorial but by the end of it we'll have a working knowledge of basic git workflow. I'll be showing this tutorial on a Raspberry Pi, ...
- Pimoroni Blinkt: Setup and first script
Not quite sure how to get started with your Pimoroni Blinkt module? Let's set one up and have a play around! We'll guide you through the installation, open up some examples and try our hand at writing a simple program. You'll need: A Raspberry Pi...
- Basics: Getting Started with the Terminal on Raspberry Pi
In this tutorial we’ll be getting familiar with basic use of the Raspberry Pi terminal. We’ll cover navigating the file-system, making directories, writing and editing text files, and just touch on the use of wildcards. To get started wi...
- Mass SD card Image Writer
We've built a mass SD card writer using a Raspberry Pi 3 Model B, some USB hubs and SD card readers. This beast has enough ports to write 49 SD cards at once! At Core Electronics, sometimes logistics hang-ups mean that suppliers cannot meet our demand for pre-flashed SD cards. During these periods we have to pick up the slack by manually imaging blank SD cards we source ourselves. Of course, this is a super-tedious process, and ...
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