Picking a circuit for the dynamo-powered USB port

Sorry, this entry is only available in Asv Angļu. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. On the Spring Meeting, we did some experiments with different types of dynamo-powered USB ports: Once with a high-dropout DC-DC convertor, once with a low-dropout DC-DC convertor, once with a Zener diode, once with a step-down convertor (an old one, I don’t know which model it is, it cost around 10 €) Once with a double 3300 µF capacitor for boost (as described here), once without Once with…

Continue reading

Things out of trash and DIY stuff on my bike

Sorry, this entry is only available in Asv Angļu. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. The light When I cycle with luggage, I usually have a box on my rack that I can use for stuff that needs to stay dry but easy to access. I particularly use it for electronic devices, there is a small solar panel on it and it is connected to the dynamo charger (more about that below). On the box, there is also an old high-vis that…

Continue reading

15 Biketour photos that look like from a catalogue

Sorry, this entry is only available in Asv Angļu. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. We just went through the photos from the past Biketours and discovered some that are so ridiculously photogenic that they could be from an advertisement!

Continue reading

Charging electronic devices in a sustainable way

Sorry, this entry is only available in Asv Angļu. For the sake of viewer convenience, the content is shown below in the alternative language. You may click the link to switch the active language. On the Biketour in 2015, one very noticeable change compared to the Biketours before was that suddenly many people came with a smartphone. In the years before there had been maybe one or two people among a group of up to 50 who had a GPS or smartphone with them, but now there were even some days where no one followed the route of the scouts,…

Continue reading