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everal of the best transistors advised by Watson, but it did not help.
* Paul suggested that I coul... the Beam electronics 1381 solarbot circuit again, but where disappointed by the fact that it would drai... with a blinking LED) with a BBC Microbit circuit, but it did not change anything (the BBC micro would s... hange the 1381E voltage detector chip to a 1381J, but nothing changed.
* We tried to change the 1381
t started yet at the end of our 3-days hackathon, but [[https://s3.amazonaws.com/cdn.teachersource.com/... .03 V, and the current measured was around 10 mA, but decreasing very quickly.
The current value slowl... compatibility issues with the CNC plug-in.
Last but not least, soldering the small surface-mount Maxi... sistor dynamics understanding), works quite well, but is limited by the storage capacitor voltage, whic
ohms and a 10 ohms resistors in series. It worked but, smelled funny. After few runs, the 100 ohms had ... e 2N3904 is 1.82V, which is sufficient to bleakly but steadily light up the LEDs of the BBC microbit.
... uch the voltage drop across the circuit would be, but the supercap overheated quite a bit, so we stoppe... harge voltage to allow for longer bursts
* but whould we adapt the 1381x too to have appropriate
the workshop having no functional supercapacitor, but we still obtained some interesting results.
===... small red LED, showing that there was some charge but not that much.
These characteristics are not outstanding, but still interesting for a 100 % upcycled design.
=... ark. It did hold voltage and quite a good charge, but after opening it up, we saw huge corrosion spots
ical provider. I think other sources may be fine, but I have not managed to use them properly yet.
===... days & more):
* Tension is stable at 110 mV, but drops when measuring current (and rises up afterwards).
* Current is stable at 107 microA, but drops after measuring tension (and rises up after
goes for 2/3 wet flour for 1/3 crushed eggshells, but she says that half-half is also fine.
{{:michka:... ng a microwave. One minute at 1000 W is too much, but five minutes on the grill position were fine.
==
it, and clean water on the very top. No air pump, but lower performances. Something like charcoal is us... irpump coupled with a windmill ?
* Probably. But how useful would this be ? We should maybe focus
