| In this series we have developed MQTT clients able to send messages back and forth over the internet. With the summer break behind us we tak...
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| The Pretzel board is a really useful tool especially when you are starting out with networks. Now however it was time to try out a different...
| In the last installment, we implemented a small actuator project where we are able to switch a remote LED using MQTT. Now and then the link...
| In the last installment of this series, we developed a small sensor node based on the Pretzel board (equipped with an ATmega and ESP8266 WiF...
| In the last episode i built a small sensor board. The ATmega on the Pretzel board periodically takes a reading from a phototransistor and co...
| Circuit simulation is a valuable tool for finding errors in circuit designs at an early stage. There are lots of Spice-based programs availa...
| In the last installment of this series I ported my mini-library for publishing MQTT messages to the Pretzel board which has an ATmega328 and...
| Sometimes you just want to make something simple, just for the fun of it or to get high on the delicious fumes of hot 60/40 solder and flux....
| The extended open source library together with free online code editor and compiler suite made available by ARM (or must we now say Softbank...
| In previous episodes I’ve spent most of my time writing PC software, it’s time now to turn our attention to some firmware. Our ultimate aim...