DIY winter 2022


. The module acts as a modem to connect Psion to the global network.

The PDA model for which the module was created is Psion Series 5MX. The author of the project developed a board called PiRS232, it allows you to connect the system to the network using a DB9 connector. Psion is small in size, there is little to fit inside it, so the author decided to make the module external.

It has its own power supply with a 2200 mAh battery. The charging board from Pimoroni is also used. Housing for the module printed on a 3D printer.

If you need details about the project, including documentation,

then here is the link

and one more

author’s blog post


Raspberry Pi is a very interesting topic, but we have other articles, check it out – we talk about:

→ Can desktop video cards compare with server ones? Exploring NVIDIA GPU Benchmarks
→ This is not taught in online courses: what to prepare for a duty engineer in operation
→ Building a Full-Mesh VPN using fastd, tinc, VpnCloud and performance testing

Recording and streaming Game Boy games with Raspberry Pi

Retrogaming is something that millions of people are fond of, far from just geeks. Modern games are good, of course, but some old titles are just amazing. Both in terms of plot and graphic elements (and it doesn’t matter that it’s not 3D). There was a craftsman who developed a system that allows you to broadcast games from the Game Boy Color, plus record video. And this system connects to the original console.

This project is based on the “raspberry”, which performs all the necessary calculations. At the same time, there are no additional elements on the console screen, so nothing interferes with the game. The stream comes at 24 fps, which is quite enough for such a bunch.

So far, the project is not yet available to third-party users, it is still being finalized, but it already performs all the declared functions.

VR helmet for mouse

And this is already a scientific development, it was created by the Schaffer-Nishimura Lab for research in the field of neurology. The helmet uses Raspberry Pi 4 to process the video stream. The image is shown using two displays in the form of a circle. How to put a helmet on a mouse? Something like that.

Unusual, but very interesting. The case for the system is printed on a 3D printer. Yes, the image resolution is 240 x 210 pixels. For more technical information about the VR mouse helmet, please visit get on github.

Volumetric digital assistant – anime girl

All these Google Nest Mini, Alexa, Alice and the like are good, but they, so to speak, have no personality. Well, that is, there is not much to get attached to – a plastic case, a couple of buttons, and that’s it.

Based on the Raspberry Pi, a developer named Peter has created a cute digital assistant that has a face. Why, there is even a dress, hairstyle and pretty earrings. This is a girl named Maria, a digital 3D assistant who is also interactive.

All this is controlled by a system based on the “raspberry”, along with artificial intelligence, speech recognition and other familiar functions. Maria can respond well, have simple conversations and perform various tasks. Gradually, the developer is improving this system, so that soon it can become even better and more perfect.

For data processing, a Raspberry Pi 4B with a connected microphone and speakers is used. The author printed the case himself. Well, for projecting the image, a 3.2-inch screen with a resolution of 800×600 pixels is used.

Link to the project with detailed information – here.

Well, that’s all for today – do not switch.

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