Posts on Blog - Handy Baile

Minitel Display

Sun, 19 Apr 2026 21:27:07 +0200

In December 2024, I modded a Minitel Telic 1 into an HDMI display and USB keyboard.

Keyboard

The Minitel keyboard is defined by an 8×8 matrix (sadly, it’s a diode-less matrix, meaning ghosting and masking may occur).

Using the following matrix:

↑	Correction	Annulation	↓	Shift	←	→	↲
T	E	R	Y	;	-	:	?
G	D	F	H	*	7	4	1
.	Esc	,	'	Suite	Retour	Envoi	Répétition
B	C	V	N		8	5	2
Guide	Z	A	Sommaire	U	I	O	P
Fnct	S	Q	Ctrl	J	K	L	M
Connexion Fin	X	W	Espace	#	9	6	3

So using an RP2040-Zero board, the KMK firmware and some python:

I Forgot the Feet !!!

Tue, 27 Jan 2026 08:48:45 +0100

I forgot to add to the rack feet 3D models to the 24/01/2026 article. So here they are:

Download: STL Source: FreeCad

RP2040-Zero Serial Thermometer

Sun, 25 Jan 2026 11:17:28 +0100

With my new addiction, I made the the mistake ??? to install Home Assistant, and wanted a thermometer and didn’t have any temperature sensor. But I remembered that the RP2040-Zeros in my drawer and the fact that they had internal temperature sensor.

After a short internet search I found learnembeddedsystems’ blog especially the article titled “RP2040’s On-Board Temperature Sensor”.

Code

Pico-SDK Installation

After opening the Pico-SDK Quick-Start Guide, I realised that their just was a AUR package, so after running yay -S pico-sdk and setting up the build environment i was done.

DIY Rack Build

Sat, 24 Jan 2026 21:35:25 +0100

Edit: I’ve added the feet files here

I have a new addiction Homelabing, and it caused me to build a Custom Rack, inspired by Symbiiote’s DIY Rack

Build

I’m not going to explain how to screw bolts into holes but i’m going to give you a list of all the Required Parts (3D Prints and Hardware).

Required Parts

3D Prints

I’ve printed almost all of the Rack 3D Printed pieces are made out of PETG.