I was wanting a really portable serial terminal that I could use “in the field” to reprogram ESP8266 modules running MicroPython. Unfortunately there is a definite lack of simple, serial terminal devices to be found on the market, so I decided to build my own.
After some consideration and research, I figured the most economical route would be to use a Raspberry Pi Zero, because of it’s small size and low cost. It has a large community and ecosystem as well, with many options for a display that would work for such a small device.
Taking inspiration from this project https://n-o-d-e.net/zeroterminal.html I decided to use an inexpensive Bluetooth slide-out keyboard case, for the basis of my device. In my search I found that keyboards for the iPhone 4/4se were rather easy to find so I decided to go that route.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
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.