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28 April '21 / Dimitris Zervas

Clear nrf52 saved BT bonds

Often the nRF52 micros get stuck or misbehave and reach a weird state with the pairings. Often the solution is just to clear them so here’s adafruit’s code to do that and a platform.io ini to make it easy.

platformio.ini

[env:clearbonds]
platform = nordicnrf52
board = particle_xenon
framework = arduino

The board can be any nrf52 board, it can be any generic board that uses the same chip that you actually have. For example particle_xenon uses nRF52840, so it can be used for any 52840 board. It might though not flash the correct LEDs, so just hook up the serial port.

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04 October '20 / Dimitris Zervas

Rusty Arduino bindings using PlatformIO

Oh Rust, how much I love you… Love at first third sight, like I had with my English teacher. She was ugly but I was 10 and she was a female that stood near me for an hour and talked to me in a soothing voice. That’s what Rust is, ugly but it’s there for you with a soothing voice.

On the other side we have C++ that the Arduino Framework is written on. Classes here and there, mixed with C, requiring a 3 day workshop to understand what’s the “standard” way of blinking a LED - hence the headache of each Arduino library taking the matters on their own hands. I hate reading C++ by the way and don’t know how to write it. That’s why I want to just forget about it and just call it from Rust.

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27 May '20 / Dimitris Zervas

Adding more magic to the Magicforce 68

This is a small journey on how I reverse engineered the MagicForce 68 keyboard and tried to add bluetooth functionality to it. It’s a small keyboard (68 keys, 65%) and is USB-only (it’s not the smart model). It has a controller that I can’t flash with a custom firmware, so I had to hook wires on it.

The Hardware

The first step in determining what I was against, was to at least partially disassemble the keyboard.

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