Raspberry Pi TrafficHAT Time of Use

Started: 2016-Jul-15, Last Abandoned: 2016-Jul-15

A Node-RED + TrafficHAT indicator that shows active and upcoming time-of-use electricity pricing periods at a glance.

TrafficHAT hardware setup showing light indicators for electricity time-of-use rates

Node-RED test node used to exercise the time-of-use flow logic

What I Built

I built a flow that maps pricing windows to TrafficHAT LEDs and documents the setup for Raspberry Pi, Node-RED, timezone handling, and plan customization. The goal was low-friction visibility into expensive vs off-peak time blocks.

What I Learned

Scheduling logic gets tricky once real-world exceptions appear (holidays, timezone assumptions, daylight changes). Writing down the assumptions directly in the flow documentation saved future debugging time.

Repo: gordykeene/raspberry-pi-traffichat-time-of-use