Designing a BlackBerry-like handheld using an @Adafruit #Feather microcontroller @arturo182
Arturo182 has been designing a handheld form factor board with an LCD and full BlackBerry keypad. The design plans to have an Adafruit Feather socket so you can chose a Feather form factor microcontroller of your choice to plug in.
The latest work:
On the stream, I finished up the schematics and assigned all the footprints and 3d models.
I also added the LSM303C accel/magnetometer sensor, just cause I think it might be fun to use with this board, if not needed, can always skip it during assembly.
The last thing I did in the schematic was to change the ATSAMD20E used for the keyboard -> I2C stuff to an ATSAMD20G, which offers 12 more GPIOs, even though we only needed 2 more for the extra 2 buttons. The larger version is only 1 (one!) cent more, so it was a no brainer 🙂
The placement of many components is kind of limited, things like LCD, keyboard, joystick, and the buttons can only really go in one place, so I started with those. I also put the NeoPixel in the top right corner up front, to get that older phone feeling.
Now the tricky part is where the Feather should go, there are a few factors to consider here:
Battery connector accessibility
What your fingers touch on the backside when you’re typing
Weight distribution, battery on the bottom makes it more comfortable to hold.
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.