Tag "raspberry-pi"

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....

Automated unit testing in the metal

Unit testing your code is peace of mind. It has two main direct benefits that impact on your confidence about the code you are writing: Testing expected behaviors Avoiding regressions (i.e. breaking something that was working fine before) Unit testing embedded systems is a bit more involved since there is the additional constraint of the hardware itself, sometimes more than one device or even different platforms. Quitting (or not even thinking about it) is the easy answer to the problem....

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....

GeekWorm Power Pack Hat Hack

Sorry for the tongue twister ;) I’ve been somewhat busy lately and it’s been a long time since my last post. I have a few projects on the go but not much time to sit down and write about them… Let’s see if this one goes through… I’ve been lately looking for a reliable UPS system for Raspberry Pi 3. I moved my home server to a RPi a few months ago and even thou its behind an ACS UPS a couple of other projects involving RPis required mobility (one of them) and unassisted power backup (the other)....

Using Google Assistant to control your ESP8266 devices

In my last post I tried to explain how to access your IoT devices at home from the Internet in a secure way using a reverse proxy. Truth is that I had it running since maybe 6 months ago without giving it too much use until recently. Reason? My Nexus 5 had been having serious problems (battery not charging, screen broken, earpiece not working,…) and I decided to replace it with a new mobile phone and the new one has Google Assistant built in....

Secure remote access to your IoT devices

When you are hacking with IoT devices at home you get to face the challenge of accessing remotely to them, that is from outside your home network. I’m not saying your home network is a safe place, beware. But that thing outside, you know, “the Internet”, it’s so scary… Unfortunately, most IoT devices are just not ready for the jungle. Neither the commercial ones, nor the hacked ones you might have....