From the Forums: a homemade cell phone with a GUI, calling, SMS, and games #FromTheForums #Adafruit @Adafruit

From the Adafruit Forums, user jim_lee posts a homemade graphical cell phone project!

This is the “home” screen (center, above). Across the top is the menu bar that can have text, icons, what have you. This screen has battery charge and RSSI indicators. Across the bottom, on the home screen is my five “standard” phone icons. Phone, SMS, Contacts, Calculator, Settings/Debug.

The project uses a ton of parts from Adafruit: An Adafruit 2,8″ display breakout with SD card reader, an Adafruit Feather FONA, and a Teensy 3.2. As for the software:

The phone runs on what I’m calling litlOS It’s basically an Arduino sketch swapper. There is an object called a panel and that has setup() & loop() methods. You can get your sketches running independently, then just wrap them into a panel object and the OS takes care of swapping them in and out of memory. Actually there are also close() and closing() methods. One can be called to quit a panel and the other is called when a panel is shutting down.


SMS panel for texting. Notice all the sub-panels have a red X in the top left corner. This takes you back to the home panel. When you send a text message it goes on the screen as yellow. If its successfully sent it turns to green. Incoming text are white. The nickname of the person your texting is at the top of the panel.

The code is available on GitHub at https://github.com/leftCoast/Arduino – Jim writes:

Maybe you see this as a neat toolset for programming Arduinos. It is, in a way. But really, its more like the huge pile of mess on my desk. Many things don’t work, some are missing parts. Some will never work. There’s probably spilled drinks and long dried out half eaten hamburger in here. This is just a swirling turmoil that new ideas spawn from.

Read more in the Adafruit Forums here.




Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. 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.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 13,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Charitable business and the Buy-One Give-One angle

Wearables — Stitch marks

Electronics — Potentiometer conventions

Biohacking — Vitamin-C + Gelatin for Accelerated Recovery

Python for Microcontrollers — The Top Programming Languages 2019 – Python tops the charts with a CircuitPython nod! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit

Adafruit IoT Monthly — Adafruit IO Updates, RGB Stream Deck Message Panel, and more

Microsoft MakeCode — Welcome to the MakeCode Newsletter!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.