For the Tindie OLED (or Adafruit) the driver need 128 bytes of RAM instead 512, that is exactly what I needed. Some of the modes make available a REPL (either running on the connected CircuitPython or MicroPython device or as a Jupyter based iPython session in Python3 mode). It lets you modify and adjust them for your needs, apply effects and finally export them as source code for use in mikroC, mikroBasic or mikroPascal compilers. You will need two libraries: Adafruit-GFX and Adafruit_SSD1306. I have created a new version called Adafruit_mfGFX which supports multiple fonts and allows users to add their own. Arduino IDE in the Cloud. If you pass size as 1 or if you don't put down a size, that will be what is used. Note: The list from the u8g2 project might be a little bit newer, so maybe not allways all fonts are available for this project. Adafruit Audio FX Mini Sound Board – WAV/OGG Trigger 16MB Flash Would you like to add audio/sound effects to your next project, without an Arduino+Shield? Or maybe you don’t even know how to use microcontrollers, you just want to make a sound play whenever you press a button. We use cookies for various purposes including analytics. text_font – The path to your font file for your data text display. This test uses a non-default font. You need to find the library in the listing in the iDE, and select "include in App" and select the app to include it into. I am using the 128x64 SPI version. In the Adafruit software it says: #define DPI 141 // Approximate res. adafruit-gfx-graphics-library. Codebender includes a Arduino web editor so you can code, store and manage your Arduino sketches on the cloud, and even compile and flash them. Each of the areas I cover below include sample sketches that are intended not only to give the technical usage details, but to inspire a little of your own creativity. The library contains proportional fonts, different sizes can be enabled/disabled at compile time to optimise the use of FLASH memory. The Adafruit GFX library has a number of custom fonts ranging in size from 9-24 points. It's in the fontconvert. Introduction OLED graphic displays are awesome And it is a well known fact that the smaller they are, the more awesome they become! Adafruit stock a whole host of small monochrome OLED displays and in this tutorial I am going to show you. Parameters: scl ( Pin) – The clock pin sda ( Pin) – The data pin frequency ( int) – The clock frequency in Hertz timeout ( int) – The maximum clock stretching timeut - (used only for bitbangio. SSD1306 Tools. You will need two libraries: Adafruit-GFX and Adafruit_SSD1306. Create fonts and symbols from scratch, or by importing existing fonts on your system. UTFT Fonts: Instructions These fonts are for my UTFT library only. Photos of standard framebuffer apps running on the display: fbterm in a couple of font sizes, and mplayer playing a video clip at 24 fps:. The library is based on the Adafruit GFX and Adafruit ILI9341 libraries and the aim is to retain compatibility. Q&A for Work. Preloading the fonts with the load_glyphs method will also expedite your code. Using Bitmap Fonts. In the one here the screw holes are about 1mm closer together on one side then the other. To create fonts which you can use in the Adafruit library follow these steps: Go to: http://oleddisplay. The DisplayIO custom font handling is a bit sluggish. (Dot Matrix Liquid Crystal Display Controller/Driver) ADE-207-272(Z) '99. 3V 8 MHz Arduino Pro Mini and the Adafruit ST7735 library. 'Fonts' folder contains bitmap fonts for use with recent (1. Sometimes you know the starting point and destination in advance. SSD1306 Tools. com page for the PiGrrl2 it looks like that was expected for the hold case design 1. For starters, Adafruit offers a library that allows for drawing functions and displaying text on the matrix. Testing the update speed of a 128x128 TFT display that uses the ST7735 controller chip with a 3. adafruit-circuitpython-bmp280. The characters are just an upscale of the standard 7x5 font. Last released on May 22, 2019 CircuitPython driver for the BMP280. The Adafruit Analogue 2-axis Thumb Joystick with Select Button makes it easy to add console-like joystick control to your next project. The BMP-LCD program doesn't do this, you will need to create a file in your own graphics program. Scribd is the world's largest social reading and publishing site. But since everyone keeps the setting, a certain font at 20 points is going to take up the same number of pixels on a lot of devices. Change fonts. The TFT library is included with Arduino IDE 1. There is a font include inside the sketch named : arial12pt8b. Introduction. This 320x240 color TFT display is recommended for use with Teensy 3. Is there a way to get a nicer(not that blocky) font to work? Is there a way to get a DIFFERENT font to work?. NOT AN ARDUINO SKETCH. Toggle navigation Arduino Library List Categories. Adafruit-GFX-Font-Customiser - A little utility to customise pixel fonts for the Adafruit GFX library 48 This is a handy utility that goes well with the original 'fontconvert' tool provided by Adafruit for converting TTF fonts to Adafruit_GFX. Building on the previous example, we will look at using a custom font by leveraging the Adafruit CircuitPython Bitmap Font library (documentation). Thanks in advance. That means that in just a few days we’ll be handing out hackpacks to every attendee of the conference. Libraries with display classes that inherit from Adafruit_GFX get FreeFont fonts from Adafruit_GFX. Original font file FontName unknown. Manufacturing Partnership with Adafruit announced Zoe Romano — May 16th, 2015 Today, May 16th, 2015 Massimo Banzi, CEO and co-founder of Arduino, announced at Maker Faire during the “ State of Arduino ” keynote that Adafruit is manufacturing Arduino’s for Arduino. h // file and pass address of GFXfont struct to setFont(). More recent versions of the Adafruit GFX library offer the ability to use alternate fonts besides the one standard fixed-size and -spaced face that's built in. Adafruit-GFX-Library-master downl. Code samples in the reference are released into the public domain. Remote-controlled 8x8 LED matrix in real-time by the HTML5 Websocket. All gists Back to GitHub. Using Bitmap Fonts. G'day solardude, I ended up using the "Adafruit_ILI9341" library and just changed the TFT dimensions in the. Re: Adafruit RA8875 and external fonts help by rmetzner49 on Fri Apr 21, 2017 11:35 am Thanks, I did read that little quirk about the RA8875 and am awaiting a 74AUP1G2 to arrive and scab into my board. We only have one font to save on space, and its meant to be 5x8 pixels. http://matthewcmcmillan. It works, but Steve Jobs would not approve! It isn't taking advantage of the very high resolution of these lovely little displays. a-Si TFT LCD Single Chip Driver 240RGBx320 Resolution and 262K color ILI9341 The information contained herein is the exclusive property of ILI Technology Corp. New Adafruit generic OLED display driver for Raspberry PI Posted on February 24, 2015 by Charles After some years of using my SSD1306 library driver on Raspberry Pi, I needed to get it working with the new more and more popular 1. For the Tindie OLED (or Adafruit) the driver need 128 bytes of RAM instead 512, that is exactly what I needed. Tags: badge, badgelife, circuitpython, conference, Fonts, GamePadShift, languages, neopixels, pybadge, Unicode — March 29, 2019 AT 9:31 am Raster CRT Typography - the glyphs drawn by DEC VT100 and VT220 terminals #Typography #DEC #VintageComputing #Fonts. So Adafruit's latest is the PyPortal, an Atmel-SAMD51-powered, Python-running board with a touchable LCD display, an ESP32 for WiFi and BT, and a form factor which makes it easy to mount. Easily share or embed the code with your changes when you're done. You can also load fonts from external files in Bitmap Distribution Format (. Adafruit GFX graphics core library, this is the 'core' class that all our other graphics libraries derive from - adafruit/Adafruit-GFX-Library. ILI9341) and optional touch lib (eg. Library: Adafruit_TFTLCD. class adafruit_bitmap_font. Arduino IDE 2. I added a web page to the PHPoC Shield(P4S-347/348) to control the 8X8 Matrix LED in real time. After @loboris did excellent work making a font converter for the Python world, here's my contribution for the Arduino / C world: truetype2gfx, a simple online tool to turn TrueType fonts into GFX include files ready to be used with the M5Stack or any other device that has the Adafruit display library. Cherry MX KeyCaps by adafruit is licensed under the Creative Commons - Attribution - Share Alike license. Click "Create". It has a diagonal line through the center to distinguish it from a capital letter O. Libraries Adafruit_GFX and Adafruit_SSD1306. A daily alarm can be set in the program, to do the same task for the same duration. For this article, I will introduce the two main ones. Every font is free to download and preview for your projects. Looks like you need to update the should button mount STL for the v1. This means "not. I've been trying to get my Adafruit_RA8875 display working with custom fonts. Glyph objects into the GlyphCache from the font. 8 inch TFT touch shield Assembly Mount TFT shield on ArduinoTake care to avoid bending p. com page for the PiGrrl2 it looks like that was expected for the hold case design 1. Here we show you how to create custom bitmaps in the Adafruit GFX font format to design your own custom. The Adafruit_GFX library for Arduino provides a common syntax and set of graphics func=ons for all of our LCD and OLED displays. The library posted on my github includes 4 fonts. 8 モニタ・専用pibow(PiTFT)ケースセット (クリアブルー) Adafruit 商品説明 Adafruit TFT2. Library for Adafruit ILI9341 displays. It can be used with the Adafruit_ILI9341 library or Optimized ILI9341 library. Find this and other hardware projects on Hackster. We use cookies for various purposes including analytics. The Adafruit GFX library is a widely used interface for Arduino TFT displays. If you have ever wanted to use custom fonts with Adafruit GFX libraries, but can't figure out how to implement them, check out this video. What does this mean? Remixing or Changing this Thing is allowed. We will look at examples of how to control the screen brightness, display bitmap images, control individual pixels, write text, use custom bitmap fonts, draw shapes, and detect touch inputs. library alternative: u8g2 This library of vast scope has multiple fonts and seems faster. These are libraries and drivers available in separate GitHub repos. text_position - The position of your extracted text on the display in an (x, y) tuple. We're going to cover how to 1) send text input from the serial window on the computer to the OLED display 2) customize the Adafruit binary image which appears in the standard testing sequence (i. Last released on May 22, 2019 CircuitPython driver for the BMP280. The sketch size is 10 K. Code samples in the reference are released into the public domain. My thought was to use a larger standard font, e. if you use tft displays for your Arduino or Teensy projects, chances are you need custom fonts. This is very easy to do and both Sparkfun & Adafruit have detailed guides on how to do this; Sparkfun Arduino IDE and ESP8266 Adafruit Arduino IDE and ESP8266. Original font file FontName unknown. Libraries with display classes that inherit from Adafruit_GFX get FreeFont fonts from Adafruit_GFX. of Adafruit 2. TrueType to Adafruit_GFX font converter. c" file and specially encoded fonts in the "Fonts" folder. It consists of 128 segments and 64commons. To use a font in your Arduino sketch, #include the corresponding. My question: Is there a "patch" to the Adafruit library available to use larger fonts, e. True type font(*. As these typefaces don't require the purchase of additional software to work in Windows® environments, fonts based on the TrueType standard have become widespread. It uses the Adafruit library. It is comparable to some other tweaked Adafruit libraries out there and in addition you get things like custom fonts, arcs, images or ability to take screenshots. Has anyone been successful with pulling data from the TCS34725. Export Converted Font From the file menu, select Generate Fonts. We are going to create a font that uses 0-31 as well as 127 and upwards. Preloading the fonts with the load_glyphs method will also expedite your code. The libraries include the Adafruit GFX library which can be downloaded here and the Adafruit ST7735 Library which can be downloaded here. ttf) and Web Open Type File Format (*. If in the Fonts folder, use this syntax when #including the file:. The characters are just an upscale of the standard 7x5 font. OK, I Understand. Sign in Sign up Instantly share code, notes, and. You can either give the name of a color, a red-green-blue expression-often called a hex color code-or a hue color saturation (HSL) value. Adafruit Industries, Unique & fun DIY electronics and kits Monochrome 0. The library is preloaded with a generic font, if you want to have custom typography or even iconography mixed in with the type, you'll want to create your own font. They are designed for use with CircuitPython and may or may not work with MicroPython. I examined the libraries and nowhere could I find a procedure to select a font, yet the example has declarations like these below, so changing fonts should be possible:. Some of the modes make available a REPL (either running on the connected CircuitPython or MicroPython device or as a Jupyter based iPython session in Python3 mode). begin(Adafruit_GFX &gfx): Connect to Adafruit GFX library void u8g2_for_adafruit_gfx. August 12, 2016 Peter Scargill Adafruit, fonts 17 Comments on Adafruit GFX I’m hoping someone can save me a learning curve here. 96 128x64 OLED graphic display ID: 326 - These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. Test drive all the free programming fonts!. Hi I am running the Arduino Adafruit NeoMatrix library using the example sketch "matrixtest" I am trying to generate the "degree" symbol by modifying one of the characters in the font array. The Adafruit_GFX library for Arduino provides a common syntax and set of graphics func=ons for all of our LCD and OLED displays. ILI9341) and optional touch lib (eg. The sketch size is 10 K. However, when you need real time serial interaction or data logging capabilities, that’s when one of these serial monitor alternatives can come in handy. SSD1306 is a single-chip CMOS OLED/PLED driver with controller for organic / polymer light emitting diode dot-matrix graphic display system. The characters are just an upscale of the standard 7x5 font. Library: Adafruit_TFTLCD. Library: Adafruit_TFTLCD. h file and pass address of GFXfont struct to setFont(). This code is found in the Adafruit_SSD1306. 2 (optional TTF_Font) or SDL2 -- no need for Python or XWindows / X11! Dependencies for Arduino: Adafruit-GFX, graphics lib (eg. It uses the usual SSD1306 microcontroller already presented in several articles. ttf) and Web Open Type File Format (*. This allows Arduino sketches to easily be. Read about 'Project14 | Xut: The Animatronic Penguin, Part 2' on element14. The basic Adafruit_GFX library used by many members only includes a single font and none can be added easily. 2" TFT display running off of an Arduino. This sketch is called ILI9341_text. The pixels that are painted with the character color are defined by the font. And looking at the learn. image2cpp is a simple tool to change images into byte arrays (or your array back into an image) for use with Arduino and (monochrome) displays such as OLEDs. BSD license, check license. You will then be able to use any of these free fonts within any program on your computer. 7-segment font - Open Font Library Segment7: Strictly seven-segment (plus point) calculator display face, fixed-width and free. 5 and later. Manufacturing Partnership with Adafruit announced Zoe Romano — May 16th, 2015 Today, May 16th, 2015 Massimo Banzi, CEO and co-founder of Arduino, announced at Maker Faire during the “ State of Arduino ” keynote that Adafruit is manufacturing Arduino’s for Arduino. Adafruit Industries, Unique & fun DIY electronics and kits : - Tools Gift Certificates Arduino Cables Sensors LEDs Books Breakout Boards Power EL Wire/Tape/Panel Components & Parts LCDs & Displays Wearables Prototyping Raspberry Pi Wireless Young Engineers 3D printing NeoPixels Kits & Projects Robotics & CNC Accessories Cosplay/Costuming Halloween Reseller and School Packs Internet of Things. It is faster than the original Adafruit one but do not expect DMA-like speed increase. Find this and other hardware projects on Hackster. And looking at the learn. cpp --> drawChar function. Change font size; Print view; FAQ Adafruit TCS34725. This is not achievable without severe changes to the Adafruit_GFX. Download: Adafruit_SSD1306. as scroll function, floating window display, graphic pattern and font enlargement function. It uses the usual SSD1306 microcontroller already presented in several articles. They are designed for use with CircuitPython and may or may not work with MicroPython. Remember that it's color, not font-color. It lets you modify and adjust them for your needs, apply effects and finally export them as source code for use in mikroC, mikroBasic or mikroPascal compilers. Please note. Each font is available in bold, italic and in different sizes. They are designed for use with CircuitPython and may or may not work with MicroPython. We use cookies for various purposes including analytics. 3V 8 MHz Arduino Pro Mini and the Adafruit ST7735 library. Re: Adafruit RA8875 and external fonts help by rmetzner49 on Fri Apr 21, 2017 11:35 am Thanks, I did read that little quirk about the RA8875 and am awaiting a 74AUP1G2 to arrive and scab into my board. It took me countless hours to find it and getting it to work. This site uses cookies to deliver our services and provide a basic level of website functionality. April 11, 2014 AT 12:00 am How to change the command line font size on your pi! #piday #raspberrypi @raspberry_pi. MAX72xx Panel Library 3. Export Converted Font From the file menu, select Generate Fonts. Programming Fonts. The sketch size is 10 K. h file and pass address of GFXfont struct to setFont(). This is important since it dictates what the size of the font is really compared to the dot size of the screen. 3 - a Python package on PyPI - Libraries. RA8875 is a powerful and cheap choice for color display application. If user sends data from a web page in real time using HTML5 Web socket then it can turn each 8X8 LED on / off. What does this mean? Remixing or Changing this Thing is allowed. Arduino is low level, powerful, but a little more challenging. I’m messing with the Adafruit GFX library here with a view to making a subset of my normal MQTT-based code supporting the little 160*128 LCD displays. Glyph objects into the GlyphCache from the font. It uses the Adafruit library. Add U8g2 fonts to any Adafruit GFX based graphics library. CircuitPython Hackaday portal using M4, ESP32 """ This example will access an API, grab a number like hackaday skulls, github stars, price of bitcoin, twitter followers and display it on a screen if you can find something that spits out JSON data, we can display it!. 2 case design. This IC is designed for Common Cathode type OLED panel. (Dot Matrix Liquid Crystal Display Controller/Driver) ADE-207-272(Z) '99. Bitmap fonts are simply groups of images. See http://guy. Programming Fonts. BDF (f, bitmap_class) ¶ Loads glyphs from a BDF file in the given bitmap_class. This sketch is called ILI9341_text. h file and pass address of GFXfont struct to setFont(). This test uses a non-default font. Adafruit Feather nRF52 is a BLE (Bluetooth Low Energy) board supporting Bluetooth V5. Last released on May 20, 2019 LIFX Smart Lighting API Helper. Suppose you want to attach it to a tiny OLED (128x32 pixels) and make it write easily readable huge fonts (16x32 pixels WxH). Firstly, before you can convert a bmp you need to create one. Bitmap fonts are simply groups of images. It was originally made to work with the Adafruit OLED library. Change fonts. With the PiTFT installed and the 4 tactile buttons there aren't many GPIs left on the model B Raspberry Pi. In the Adafruit software it says: #define DPI 141 // Approximate res. Buy a wide range of Adafruit Display & Sound from Rapid Online. A more popular alternative source can be the Font Squirrel website. The Adafruit Analogue 2-axis Thumb Joystick with Select Button makes it easy to add console-like joystick control to your next project. Hooray! I have been experimenting with a 320 x 240 ILI9341 display to see what we are getting. I´m using an OLED display (similar to the Adafruit one) with the Adafruit GFX library. cpp --> drawChar function. " Simply drag and drop any of the fonts you download to your computer into your "Fonts" file folder. For starters, Adafruit offers a library that allows for drawing functions and displaying text on the matrix. In fact, the default font face is changed to a beautiful proportionally spaced sans serif type. Adafruit provides some clues with the Proper Debugging of ATSAMD21 Processors tutorial. You can use Adafruit Arcada to interface with the hardware and it will abstract some of the nitty-gritty details like reading buttons for you. Library: Adafruit_TFTLCD. More than 50 types are available. Ask Question I am aware that there is a Adafruit function for bitmaps:. I've been trying to get my Adafruit_RA8875 display working with custom fonts. It has a diagonal line through the center to distinguish it from a capital letter O. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site , learn computer science using the CS Discoveries class on code. The Arduino IDE includes a “Serial Monitor” which is decent for basic serial communication. Set the color for the font with stroke(), and write any static text to the screen. h file and pass address of GFXfont struct to setFont(). The Adafruit_GFX library for Arduino provides a common syntax and set of graphics func=ons for all of our LCD and OLED displays. This is the first ever tutorial on how to use and create your own custom fonts. The resulting. net offering 1000's of FREE fonts to download to help the millions of designers across the globe expressing their creativity with much more diversity. The TFT library includes a basic font for drawing text on screen. Memory used for the screen buffer is initialized with the Adafruit logo in the Adafruit_SSD1306 driver library. ttf) and Web Open Type File Format (*. This is the first sketch I wrote for the TFT-LCD. Any help will be grateful. TrueType to Adafruit_GFX font converter. 3V 8 MHz Arduino Pro Mini and the Adafruit ST7735 library. It consists of 128 segments and 64commons. h file: #include However, this library seems to be missing from Particle libraries ? Are there plans to port it ? Alternatively, I think I should just be able to include the. That’s a fine and compact font, but wouldn’t it be nice to have some pretty high-res fonts to take advantage of the memory and resolution we have to work with?. More than 50 types are available. At any time, you can pull up directions to a location and you're on your way. Mu is a modal editor with modes for Adafruit’s CircuitPython, the micro:bit’s version of MicroPython, PyGame Zero and standard Python 3 (including a graphical debugger). Read about 'Project14 | Xut: The Animatronic Penguin, Part 2' on element14. It is very challenging to compress code in small memory micro-controller unit (MCU) such as Digispark ATtiny85, which is offering only 6kB. jasonpilarski machinehistories arduino display. When we draw a character using the standard Adafruit GFX font with its default size of one, we are telling the display to draw a character in a space on the display that is six pixels wide and eight pixels high. After trying some examples I was a little disappointed that only scaled blocky fonts were available - so I have modified the original libraries to add some new fonts and functions. Some of the modes make available a REPL (either running on the connected CircuitPython or MicroPython device or as a Jupyter based iPython session in Python3 mode). But since everyone keeps the setting, a certain font at 20 points is going to take up the same number of pixels on a lot of devices. Choose font family, style and size. The Adafruit GFX library drawChar() command allows you to print single character. Now, here is the Windows Terminal font, which appears to use the same mapping of codes to glyphs. We have taken the font format from Adafruits Gfx library, and made support for it in the text rendering system. The library is preloaded with a generic font, if you want to have custom typography or even iconography mixed in with the type, you’ll want to create your own font. 2 case design. I have created a new version called Adafruit_mfGFX which supports multiple fonts and allows users to add their own. It has a diagonal line through the center to distinguish it from a capital letter O. Note: The list from the u8g2 project might be a little bit newer, so maybe not allways all fonts are available for this project. by evance74 » Tue Apr 11, 2017 6:23 pm. Download France font free! - FontZone. I have hacked the Adafruit lib and added init code to your library now works a treat. In the one here the screw holes are about 1mm closer together on one side then the other. 7-segment font - Open Font Library Segment7: Strictly seven-segment (plus point) calculator display face, fixed-width and free. Every font is free to download and preview for. Arduino IDE 2. The set consists of three typefaces: one monospaced and two proportional (one with uniform and one with modulated stroke). if you use tft displays for your Arduino or Teensy projects, chances are you need custom fonts. This is the first sketch I wrote for the TFT-LCD. Libraries Adafruit_GFX and Adafruit_SSD1306. On the right hand side of this page you can see howyour font is going to look like on the actual display. A library of additional fonts is available, as well as huge collection of Google fonts , and even more fonts here. Adafruit Industries, Unique & fun DIY electronics and kits TensorFlow Lite for Microcontrollers Kit ID: 4317 - Machine learning has come to the 'edge' - small microcontrollers that can run a very miniature version of TensorFlow Lite to do ML computations. Is there a way to get a nicer(not that blocky) font to work? Is there a way to get a DIFFERENT font to work?. Hooray! I have been experimenting with a 320 x 240 ILI9341 display to see what we are getting. A more popular alternative source can be the Font Squirrel website. Glyph objects into the GlyphCache from the font. // Example fonts are included in 'Fonts' directory. It is very challenging to compress code in small memory micro-controller unit (MCU) such as Digispark ATtiny85, which is offering only 6kB. The TFT library is included with Arduino IDE 1. It consists of 128 segments and 64commons. A basic 7x5 character in file "glcdfont. To create fonts which you can use in the Adafruit library follow these steps: Go to: http://oleddisplay. I needed to create a custom symbol font that would display media controls such as rewind, fast-forward, play, pause, stop as well as arrow keys in eight directions and some other custom designs such as a Bluetooth or a power button. Libraries Adafruit_GFX and Adafruit_SSD1306. This IC is designed for Common Cathode type OLED panel. Especially useful are fonts without a 't' in their name. Adding a New Font for use with the OLED Screen. Overview The Adafruit_GFX library for Arduino provides a common syntax and set of graphics functions for all of our LCD and OLED displays. " Simply drag and drop any of the fonts you download to your computer into your "Fonts" file folder. This means you get all your RAM back with text output but no graphics - but this can be a useful option for severely constrained designs. Overview: We get plenty of requests from our users to have the ability to easily show even larger fonts on the OLED Screen compared to the ones that come shipped with the OLED + BCore100 board which has a maximum large font size of 16x16 pixels. The fonts are based on data generated by TheDotFactory which generates the correct data from existing truetype TTF fonts. Libraries with display classes that inherit from Adafruit_GFX get FreeFont fonts from Adafruit_GFX. The basic Adafruit_GFX library used by many members only includes a single font and none can be added easily. Use a LiPo battery for reading time on a TFT display. Re: Adafruit mfGFX discussion by Flinkly on Thu Nov 05, 2015 8:41 pm I've got an Adafruit 128x64 SSD1306 mono OLED running in hardware SPI, and can't for the life of me get any different font than what appears to be the generic glcdfont. AdaFruit GFX Font Format The file format for the AdaFruit GFX library is defined in their open source library, currently in the file gfxfont. Search Search. Adafruit TFT2. DSEG have special features: DSEG includes the roman-alphabet and symbol glyphs. Arduino IDE in the Cloud.