Interfacing a BlackBerry Q10 keyboard into your microcontroller project #BlackBerry #Arduino #Microcontroller

Blackberry keyboard interface arduino microcontroller

Ed. Note: There is a more up to date project on the Q10 keyboard at https://github.com/arturo182/BBQ10KBD for reference also.

I was looking to use the easily obtained BlackBerry Q10 keyboard in my projects and looked for documentation. JoeN on the Arduino forum had done the hard work and has an excellent how-to writeup.

BM14B(0.8)-24DS-0.4V(53) Hirose Electric Co Ltd | H122178CT-ND DigiKey Electronics

The part number for the keyboard cable interface receptor is the Hirose BM14B(0.B)-24DS-0.4V(53), available at Digikey (of course!) as part # H122178CT-ND

They call it a 24 pin connector but it has 28 conductors.  I guess the outer 4 are guard connectors and are not recommended as signals?  It’s odd.

The keypad is a bitch to interface because it uses a 0.4mm pitch connector on flat flex, not really all that hobby friendly.  And it worked pretty well as hobbyist repellent as near as I can tell, until now.  I have been able to build an adapter board to convert the appropriate connector to DIP, interface it to an Arduino, determine the pinout, and create a short demonstrator sketch to prove the interface and allow the user to type text out to an OLED.

The pins on the Hirose connector are rather fine – it would help to have a breakout board to use on breadboards, etc. JoeN has done this sourced on OSH Park (of course!)

Here is the JPG that JoeN provides and here is the OSH Park submission file he has. I could NOT find it on the OSH Park shared area but this one by mtfurlan may be the same (you should check).

On soldering, JoeN suggests: used a hotplate (as a solder paste reflow “oven”) then some rework with a chisel tip

Once you have the adapter board built, you can use the provided Arduino code which maps out the pins for use on your microcontroller. The keypad is in a matrix configuration.

ROW1 = PIN6 Q, E, R, U, O
ROW2 = PIN8 W, S, G, H, L
ROW3 = PIN18 T, Y, I, D, sym
ROW4 = PIN20 P, A, bck, ret, sh2
ROW5 = PIN21 alt, X, V, $, B
ROW6 = PIN22 spce, Z, C, M, N
ROW7 = PIN27 mike, sh1, F, K, J

Keyboard “column” mappings (inner circle)

COL1 = PIN7 Q, W, A, sym, alt, mike, space
COL2 = PIN9 S, D, X, sh1, E, P, Z
COL3 = PIN10 R, T, F, G, V, C, sh2
COL4 = PIN17 Y, U, ret, H, B, J, N
COL5 = PIN19 I, O, K, L, bck, M, $

Columns and rows associated with their pin on the breakout board in the keyboard matrix of the Q10 keyboard:

COL1 COL2 COL3 COL4 COL5
PIN7 PIN9 PIN10 PIN17 PIN19
ROW1 PIN6 Q E R U O
ROW2 PIN8 W S G H L
ROW3 PIN18 sym D T Y I
ROW4 PIN20 A P sh2 ret bck
ROW5 PIN21 alt Z V B $
ROW6 PIN22 spc X C N M
ROW7 PIN27 mike sh1 F J K

Here is an entire circuit with display, keyboard, and JoeN’s homebrew ATmega328 homebrew Arduino. This should be translatable to nearly any microcontroller with the correct coding.

You can read JoeN’s entire process here and his work to find the connector number here.

 

 


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

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.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm 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!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

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.