A reader of this blog was so kind to send me a number of surplus boards of two of my solar charger designs. Thank you, Joachim.
Solar Charger Hall of Fame
[November 10, 2017]
After just a few days, all of the boards were sent out to all over the world. Today, the first photo of an assembled board has arrived. I’ll post this and all following photos here:
Arduino Solar Charger
The first variety is my Arduino solar charger shield. Being my first attempt it is maybe not the most advanced design but it’s by far the simplest. So it’s well suited if you want to get your hands dirty while keeping the level of complexity reasonably low and do all your programming via the Arduino IDE. And despite its simplicity it operates very efficiently – apart from the power-hungry Arduino.
Solar Charger Rev C
This is a relatively recent and far more advanced design. It is very low power, highly efficient, comes with USB and lots of bells and whistles. So if your ambitions are somewhat higher this board is for you.
Now here are the rules. As the title of this post suggests, I give these away for free. I ship them world wide absolutely free of charge. All I ask for in return is a photo of the assembled board within 6 weeks after you get the board. A maximum of 2 boards per person (one of each design). First come first served. Just send an email to [admin at soldernerd dot com].