Jeff Geerling

I built an open source Ansible automation project to go along with my Ceph distributed storage exploration on a new 6-node Raspberry Pi Mini ITX motherboard, the DeskPi Super6c. I also published a YouTube video guiding people through both the hardware and the software setup: https://www.youtube.com/watch?v=ecdm3oA-QdQ

A couple years after the Raspberry Pi Compute Module 4 launched, the open source community finally got one of the less-flashy features working: PTP hardware timestamping. This makes the Compute Module 4 a very powerful timekeeping device, as it can behave as a network time server with the highest level of precision, using the Precision Timing Protocol and devices like GPS receivers and TXCOs (Temperature-Controlled Oscillators) or chip-scale atomic clocks to control timing over Ethernet networks.

An ESP8266 sketch for the DIY air quality sensor from AirGradient, along with instructions to integrate multiple sensors into a Prometheus installation for long-term air quality monitoring in a home or workplace.

If you're relying on Google or Apple to back up your data, or you just have a hard drive plugged into your computer, your data's at risk! In this video I explain the 3-2-1 backup rule, and how I made a custom backup plan to make sure I never lose any important data.

After seeing AirGradient's DIY Air Quality monitor based on the ESP8266 and some common sensors, I decided to integrate multiple monitors in my home. I made this video, which shows how I did everything, and I built and maintain an AirGradient Prometheus exporter on GitHub (https://github.com/geerlingguy/airgradient-prometheus), which lets me store the data from the air quality monitors in my local Prometheus instance.

Raspberry Pi configuration for all things Internet! This open source Ansible playbook configures a Raspberry Pi with Pi-hole, Prometheus, and Grafana, to help control and monitor your Internet connection. It also includes other optional monitoring dashboards for monitoring more things in your home!

This collection includes helpful Ansible roles and content to help with macOS automation tasks. For a good example of the collection's usage, see my open source Mac Devevelopment Playbook, which I use to set up and synchronize the configuration on all my Macs!

I built this Raspberry Pi PCI Express device database using GitHub Pages, and I am maintaining a repository where I'm testing, documenting, and discussing a variety of PCI Express cards that I am testing with the new Raspberry Pi Compute Module 4 and its companion IO Board. Videos from the project are posted infrequently on my YouTube channel: https://www.youtube.com/c/JeffGeerling