Tag "seeedstudio"

Grove AI Hat, edge computing in your hands

The industry has been talking about edge computing for some time now. The idea is to distribute the data storage and intelligence in locations closer to where they are needed and only use external services when absolutely necessary. Centralized cloud services have a series of drawbacks for the IIoT world, being maybe latency and security the bigger ones. Some (a lot of?) companies do not want their data to go outside their facilities and critical systems cannot rely on Internet connection....

RAK833 meets Raspberry Pi

You might have heard about The Things Network (TTN from now on) here or somewhere else. If you have not, then it’s a good opportunity to visit the project and check if there is a community of users around you. I have been a core member of the TTN Catalunya community for over 2 years now. This year we are working hard deploying several new gateways in Barcelona and doing workshops and hackathons with the main goal of helping individuals and social entities to carry out projects around a LoRaWan open, libre (free as in freedom) and neutral telemetry network....

PCB fabs

A few years ago (not many) I used to burn copper plates using acetic acid, a.k.a. vinegar. I was somewhat concerned about using stronger acids so it was OK to use another acid, even if it was soooo sloooow. If you were patient you could get to have decent boards using 50mil traces (or even thinner). But it required keeping a good temperature on the copper bath and regulating the ratio vinegar/hydrogen peroxide continuously, adding a little salt from time to time to speed things up....

Solr: digital wrist watch

15 months ago. This is when I started working on this project. The Solr digital wrist watch is a clock that won’t work without a battery but it will neither work without sun. Even more: the vintage display is really cool but it’s hard to read outdoors. A complete nonsense. It is almost a joke and some might easily file it under the “useless projects” label. But it’s still quite useful....

Grid-eye camera (sliced, of course)

Tindie is a great place to find uncommon electronic components or weird/interesting boards. I use to stroll around it’s products to basically see what’s new. It’s like Kickstarted but for real. One such uncommon and new electronic components is the Panasonic’s Grid_EYE AMG88 [datasheet, pdf] infrared sensor. And I first learn about it through Peasky Products breakout board at Tindie. And if you have been reading me lately you might know I’m going through my own LED fever....

Slices of a clock

There are so many ways to tell the time. DIYers have been doing clocks since the Ancient Egypt (obelisks lacked portability, thou). Every modern maker has a clock amongst her first projects. I have done some myself, including a fibonacci clock, a wordclock with a fancy green matrix effect and an unreleased project that hopefully will see the light someday soon. But recently I came back to the idea behind the wordclock before, to extend it in different ways:...