Total hours 1357 (2020: 397 hours, 2019: 444 hours, 2018: 516 hours).
The phone-app now has more statistics: distance 1901 km, 1165 charging cycles, 1077 hours charging.
Here's a new revision of the RF-mux board, with a 10-pin ribbon cable for +5V, +3.3V, and SPI-signals from an Arduino MKR Zero.
RF power amplifier of DCF77 modulated time-code transmitter.
Previously only seen in Oslo, but now also in Helsinki: two red men are better than one!