Sarah Chronos vs T-1K

I made a small (1024 bytes) game in PICO-8 for the #PICO-1K Jam. Hope you enjoy it playing as much as I enjoyed making it!


I’m really looking forward to play this game. This retro pixelated cyberpunk point and click adventure has everything to success. I only wish the script is as good as it seems. You can buy it here.


Several months ago, in my spare time and as a gift to a friend, I started a mod to a NES gamepad. Last week, finally, I wrapped it up.

The Nesduino ( yes, a very original name 😉 ) includes four main functionalities:

  • A clock visualizer with four modes
  • Three configurable alarms with different tunes to choose (Mario Bros, Indiana Jones, Star Wars and Legend Of Zelda)
  • Five games (Snake, Flappy Bird, Cat&Mice, Simon and Dice)
  • Ten background animations

The electronics consist in a Wemos D1 Mini, a small speaker, a red 8×8 dotted led matrix and the original NES pcb. Besides, the device is powered by USB. If you want to take a look to the code, here it is.

It’s been a very enjoyable project and also I’ve learned a lot along the way, specially about game development. I only miss the possibility to use the gamepad with the computer via HID , but as far as I know,  the Wemos D1 doesn’t support it.

And if you’re a retro lover like me, all this modifications worth just to save an old gamepad and give it a whole new life.

Game Over

Yep. Karma. You can’t avoid it. At the end of the day, the hard work is the only shortcut. As we say in Spain: «Dime de qué presumes y te diré de qué careces.»

Long live the dot matrix printers!!!

Following my last trend of trying to reuse things, I’ve purchased a dot matrix printer, an Epson LQ-300+II. Not too old because at least it has USB 1.0, but, you know, is one of these old school printers that make those characteristics crink and clank sounds. I’ve always wanted to have one, and just for 22€ (4,4Kg of shipping, two cords and a brand new ribbon cartridge included), I thought it was a great deal!

Epson LQ300+II

First time I saw one as a child was at the Public Treasury Office in Badajoz with my father. I’ll never forget the continuous feed paper folded in piles and the noisy (not to mention smoked) ambient. I also remember that courier dotted grey “a” letter, symptom of running out of ink. There’s something in that printed letter that got my attention. My guess is, at that precise moment, I discovered they were using needles and ribbons, like my father’s Olivetti typewriter. Simple but effective!

After receiving the printer and testing it, I opened the case and perform a full clean. It’s incredible how analogue these printers are. You can almost full dismantled one just pushing/pulling levers and buttons here and there. Although the LQ has his limits (I’m not going to print any photo with it) it provides enough possibilities to my print needs, and, as I can witness, it’s a very sturdy, cheap maintenance and reliable device.

Long live the dot matrix printers!!!

Using an old trackball

Last fall, I got tired of my old MacBook and decided to donate it. So I bought a tiny and cheap MSI Cube and installed Fedora in it. I used to work with Ubuntu years ago, but I read some articles about Fedora and decided to give it a go. And I’m enjoying it!

I’ve been using a Magic Trackpad with the MacBook, but I didn’t get used to it in Fedora, mainly because all the functionalities that this kind of device provides can’t be exploited. I also tested it at work, but meh. So, I sold it to a friend. Time to look for a new mouse!

After lot of time wasted in watching mouse reviews and almost spend a fortune in an ultra-mega-hyper ergonomic one, I looked into the second hand market and saw one of this:

I said to myself: “Why not?”. And, finally, last week I purchased a pre-owned Logitech Trackman Marble FX for just 20€. Yes, this trackball is not pretty and is a little bit outdated, but you will change your mind after 5 minutes of use. It’s very confy and surprisingly accurate. In a couple of days, I started to think that I had lost too much time and money in mouses and trackpads.

This device is old and its connection is PS/2, so I had to use a PS/2 converter that I had laying around. But as usually, linux didn’t recognize it, so I needed to buy a cheap PS/2 to USB active converter and bingo! It started to work right out of the box… except the little red button… It’s not being detected, but, I can live without it. At least it has left, middle and right buttons. The only problem that I’m trying to solve right now is a big one… the scroll. I haven’t be able to activate any button to trigger the scroll functionality (as this trackball hasn’t got a scrollwheel or scroll ring) and any configuration I’ve tested so far hasn’t work. If somebody has one and is kind enoguh to help me, I’ll be very grateful!

Meanwhile, I’ll continue to move the ball with my index and middle finger (by the way, I think way better than use a trackball with the thumb).

Radio Vintage

Últimamente estoy escuchando mucha radio. Creo que más que nunca. Los domingos cuando voy de viaje y estoy conduciendo, pongo la radio para escuchar los partidos y me acuerdo mucho de cuando de pequeño iba al campo con mis padres y sus amigos, abrían las puertas de los coches y venga a escuchar al periodista desgañitándose y el morse de fondo.

Estuve intentado recordar cual fué la primera radio que usé y llegué a la conclusión que fue un transistor que tenía mi abuela y que no sé si seguirá guardado en algún cajón. Era una Sanyo TH-632 del año 1972. Recuerdo perfectamente esa radio roja como si fuera hoy, cómo se movía el dial y el ruido que provocaban las interferencias en ese altavoz. Era una radio AM de mano muy robusta, pero lo que más me llamaba la atención era la funda de cuero que traía. Era bastante fea aunque al menos cumplía su función, no como algunos bumpers y carcasas de los móviles actuales… aunque eso es otra historia.

Buscando en internet alguna foto del equipo en cuestión, descubrí otra radio de la misma marca y año, con prácticamente las mismas características, aunque bastante distinta por fuera. Juzgad vosotros mismos.

La Sanyo RP-1711] era una radio AM del año 1971, que funcionaba con dos pilas y tenía 6 transistores (¡guau!). Supongo que de esta cifra les vino la idea de fabricar esta carcasa en forma de dado. En la cara del “1” aparece el dial, mientras que en la cara del “2” está la rueda de volumen/apagado y la que sintoniza el dial. En la cara del “6” se localiza la tapa de las pilas y la salida minijack para escucharla con cascos.

Toda esta historia me recuerda que a la hora de vender en el mundo de la tecnología, aunque las “tripas” de tu producto sean peores (o mejores) que las de la competencia, hay que dedicar mucho tiempo y cariño al acabado final del producto. Sólo así, se puede triunfar.

Como homenaje a estas radios Sanyo (nunca supe como se pronunciaba la marca, si como “Sanio” o como “Sanllo”), he creado esta figura 3D con HTML y CSS del modelo RP-1711. Espero que os guste.

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