| In the recent installments, we used the MQTT protocol to exchange messages containing measurement values and commands between different clie...
More about RGB LED (77)
| The differences in measurable potential on plants aroused the interest of Walter Polleros. His BioLight project detects electrical fluctuati...
| Take a 7-segment digit and make the colour of each segment freely programmable. A bright idea, but why the hell didn't anyone think of it be...
| 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...
| 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...
| Ukule-LED is a modified ukulele with digitally addressable RGB LEDs embedded in its fretboard. These LEDs can light up in con gurations corr...
| Pycom is a young company producing small modules supporting multiple network topologies. Partly funded through a few Kickstarter campaigns t...
| 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...
| It’s that time again – the March and April 2017 edition of Elektor magazine is now available online and for purchase. You can get your print...
| 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...