Mark Hansen

I'm a Software Engineering Manager working on Google Maps in Sydney, Australia. I write about software {engineering, management, profiling}, data visualisation, and transport.

Cycling Windsor to Ourimbah

Oct 5, 2020 8 min read Cyling

We recently cycled a 128km two-day trip from Windsor Station, in Sydney's far northwest, to Ourimbah Station, in the Central Coast, mostly following the banks of the Hawkesbury River. Hopefully these

NSW Government Fair Trading holds bonds for all residential tenancies in NSW, and every month they publish Excel spreadsheets of weekly rent, broken down by postcode, bedrooms, property type (house/flat/townhouse), and

Hunter Valley Cycle Tour

Aug 20, 2020 20 min read Cyling

My partner & I just finished an 8-day, 250 km bicycle tour in the Hunter Valley, north of Sydney. Full route map [https://ridewithgps.com/collections/11403?privacy_code=meX6HCytegu91SzQ]. Anticlockwise starting and

Electricity Monitoring with Tasmota & Prometheus

Jun 30, 2020 4 min read Monitoring

This post is about graphing power draw of appliances using a smart plug, Prometheus time-series database, and Grafana dashboards. First, you'll need a smart plug that you've flashed to

Flashing Kogan Smart Plugs

Jun 30, 2020 3 min read

Edit Jan 2021: A reader informs me that: > Unfortunately, it seems that the newer firmware from factory is now encrypted and the Tuya Convert method no longer works as per https://github.