Poronpolun polkaisu is an easygoing MTB event at Räyskälä in Loppi. A bit of gravel roads, lot's of easy to ride good trails, and some short technical bits. They say that the trails are some of the best for MTB in southern Finland!
A few weeks of Iltarastit on Sundays now, before the end of the season.
A bit of searching inside the control circle on 23, then from 15 about 45-degrees wrong direction towards 38. Just before 39 a turn downhill and had to circle back to the control.
This is the third prototype for the 1:8 RF-multiplexer (https://www.ohwr.org/projects/rf-mux-8ch). The board is now simplified with only one 10-pin ribbon-cable attaching it to the Arduino MKR Zero + Ethernet shield. Traco PSU for 5V supply.
A bit windy but quite warm and good temperature for running. Fairly easy course but it's always more fun in the darkness 😉
A bit of rain but not too bad, quite warm.
Most of the narrow trails on the northern/westward part of the route were too difficult for me to ride. The beginning and end were on gravel-roads so no worries there.
A second try at the PPS board, this time with the correct footprint for the transistors on the sine-to-square input stage.
Still some bugs left as I had to add a diode on the MCLR pin for the PIC-programmer to work correctly.
First night-orienteering this fall!
Fairly easy course avoiding the big hill. Bad direction out of #1 towards #2, otherwise mostly OK.
Warm +21C or so.
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.
