Javier Martinez Canillas
@martinezjavier.bsky.social
Linux hacker at Red Hat, Fedora contributor, husband, father, tinkerer. he/him.
Pushed today my patch series to add support for the ST7567 I2C display controller. Another monochrome LCD to use it as a terminal for my Linux embedded boards.
July 16, 2025 at 5:18 PM
Pushed today my patch series to add support for the ST7567 I2C display controller. Another monochrome LCD to use it as a terminal for my Linux embedded boards.
Watching Andor season 3 (Rogue One), hands down the best movie from the Star Wars universe
May 23, 2025 at 10:03 PM
Watching Andor season 3 (Rogue One), hands down the best movie from the Star Wars universe
Built an alarm clock for my kid using an old toy, an #esp32 board and #CircuitPython
May 6, 2025 at 9:01 PM
Built an alarm clock for my kid using an old toy, an #esp32 board and #CircuitPython
An elegant weapon for a more civilized age #RetroBarcelona
May 3, 2025 at 4:23 PM
An elegant weapon for a more civilized age #RetroBarcelona
The second time is a charm! Board is alive again and working correctly with the new regulator. I feel that unlocked a new level in my hardware tinkering journey by learning how to replace SMD components.
#hardware #tinkering #esp32
#hardware #tinkering #esp32
March 16, 2025 at 7:43 PM
The second time is a charm! Board is alive again and working correctly with the new regulator. I feel that unlocked a new level in my hardware tinkering journey by learning how to replace SMD components.
#hardware #tinkering #esp32
#hardware #tinkering #esp32
First time trying to replace a SMD component (broken voltage regulator in an esp32 s2 mini board). Even though I managed to somewhat do it, failed miserably because it does not work. I need proper tools and more practice…
March 16, 2025 at 3:11 PM
First time trying to replace a SMD component (broken voltage regulator in an esp32 s2 mini board). Even though I managed to somewhat do it, failed miserably because it does not work. I need proper tools and more practice…
Finished my chess dice project. Ported it today to a Lilygo T-Display S3 board that has a nice case.
#circuitpython
#circuitpython
March 1, 2025 at 3:55 PM
Finished my chess dice project. Ported it today to a Lilygo T-Display S3 board that has a nice case.
#circuitpython
#circuitpython
Lesson of the day. When doing HW prototyping, is much more convenient to solder headers to the board instead of the components themselves. That way if you damage a part, you can just replace it without the need to do any desoldering work.
#hardware #esp32 #circuitpython
February 25, 2025 at 9:21 PM
Lesson of the day. When doing HW prototyping, is much more convenient to solder headers to the board instead of the components themselves. That way if you damage a part, you can just replace it without the need to do any desoldering work.
#hardware #esp32 #circuitpython
I have been playing dice #chess with my kids lately. We were just rolling an ordinary dice to choose what piece could be moved on each turn, but I thought that building an electronic “dice” could be a fun #circuitpython project.
#hardwarehacking #esp32
#hardwarehacking #esp32
February 21, 2025 at 5:37 PM
I have been playing dice #chess with my kids lately. We were just rolling an ordinary dice to choose what piece could be moved on each turn, but I thought that building an electronic “dice” could be a fun #circuitpython project.
#hardwarehacking #esp32
#hardwarehacking #esp32
A much better result indeed when using special wires to do wire wrapping.
February 16, 2025 at 1:40 PM
A much better result indeed when using special wires to do wire wrapping.
New hardware to play with @fedora.fosstodon.org.ap.brid.gy
February 3, 2025 at 8:35 AM
New hardware to play with @fedora.fosstodon.org.ap.brid.gy
I bought a wire wrap tool and now can quickly prototype circuits without the need for any wire soldering.
#hardwarehacking #circuitpython #electronics
February 2, 2025 at 12:34 PM
I bought a wire wrap tool and now can quickly prototype circuits without the need for any wire soldering.
#hardwarehacking #circuitpython #electronics
December 23, 2024 at 8:24 AM
I improved my retro handheld console by adding some 3D-printed buttons and a joystick ball. Now, one can play without hurting their fingers. #retrogaming #BatoceraLinux #Doom
December 16, 2024 at 5:58 PM
I improved my retro handheld console by adding some 3D-printed buttons and a joystick ball. Now, one can play without hurting their fingers. #retrogaming #BatoceraLinux #Doom
December 1, 2024 at 8:54 AM
Installed #BatoceraLinux on my homemade retro handheld console and it works like a charm. #retrogaming
November 28, 2024 at 8:22 AM
Installed #BatoceraLinux on my homemade retro handheld console and it works like a charm. #retrogaming