Simple AVR Bootloader tutorial

Simple AVR Bootloader tutorial

I've used AVR microcontrollers both for hobbies and work projects. These versatile microcontrollers ran the code I programmed them with, but once the final device was shipped, it was hard…
Simple IOT temperature sensor

Simple IOT temperature sensor

IOT stands for Internet of Things and refers to small devices equipped with direct internet connectivity, without needing an external computer. They are usually composed of a main microcontroller and…
Dragino LG01 LoraWAN Gateway

Dragino LG01 LoraWAN Gateway

I already covered the impressive LPWAN LoraWAN technology with a proof of concept remote air quality monitoring unit based on the BME680 from Bosch and the RN2483 from Microchip, in…
Portable Power Supply

Portable Power Supply

I have a few excellent external batteries, the kind with USB female connectors used to charge phones. Now I needed a high voltage 12V battery, or more specifically something in…
Easy PCB Manufacturing

Easy PCB Manufacturing

For a maker, there's now no excuse in not using his/her creativity to the maximum extent. All the tools are readily available, you just need to think of what you…
Gerber Viewer

Gerber Viewer

You designed your new PCB board and you're sure it's all perfect, but some mistakes can go unnoticed resulting in wasted time and money. This is why it is important…
Introduction to CC2541

Introduction to CC2541

Exploring the versatile AVR microcontrollers or the powerful STM32 counterparts were amazing experiences which resulted in interesting projects, many of them presented on this blog. For a hardware designer, the…
LoRaWAN, RN2483 and BME680

LoRaWAN, RN2483 and BME680

Some of the best moments are those when exciting technologies come together to create even greater products or results. This is such an example. Taking advantage of the latest IoT…
Featured by Atmel

Featured by Atmel

Trained as a software developer I've been active in the field doing mostly mobile apps since 2003. My first contact with microcontrollers came later, in 2009, and I still remember…
City Air Quality

City Air Quality

Introduction Environmental surveillance is a big thing. Important for our health, but also resource consuming when it comes to designing a system that works. I started with the first unit…
DIY Geiger Counter Kit 1.1

DIY Geiger Counter Kit 1.1

This is an Open Source Digital Radiation Dosimeter, that can be used both as a portable detector, but also as a monitoring station to upload readings to the uRADMonitor network.…
The finalists

The finalists

There was a tough road to get the 3x Portable Environmental Monitor beta prototypes to the Hackaday Headquarters in time, but the effort was worth it! With today's official announcement,…
Post Beta hardware iteration

Post Beta hardware iteration

For the Portable Environmental Monitor beta release, both the project summary and the system design document presented some of the things to improve next. The first PCB was fine, but…
Portable Environmental Monitor

Portable Environmental Monitor

The portable environmental monitor addresses pollution, the kind that we are unable to see but directly affects our health and causes life threatening diseases. Airborne toxic chemicals, radioactive dust and…
The first prototype

The first prototype

It's been a crazy run, trying to make this happen. After less then one month I now have the first functional hardware iteration or the first prototype. The Portable Environmental…
Comparison of dosimeters

Comparison of dosimeters

Like with all measurements, it will be very hard to find two different devices indicating the same readings, especially when we demand increased precision. We now know that there are…
Atmega128 Voodoo

Atmega128 Voodoo

Apparently I had no better inspiration on how to name this post. It all started with a nice sunny day, when I was in great shape for doing creative work.…