Grafana, Influxdb & telegraf based home temperature monitoring with Raspberry Pi and the humble DS18B20

Creating a temperature monitoring dashboard in Grafana to display temps from sensors all around the house. Running on Raspberry Pis and using the venerable DS18B20 one-wire sensor.

Flashing LEDs with a 555 timer – and not a lot else

Just dug this out of storage – some electronics I made in the late 80s/early 90s. Most of it is old/scrap components that were lying around on my desk – only the (socketed) 555 and MC14526 counter/divider actually do anything; flashing the LEDs along the edge. I can remember making it at work during quietContinue reading “Flashing LEDs with a 555 timer – and not a lot else”