djbones
solar monitor thingy
I built a gadget to do long-term temperature and humidity monitoring in Nevada. Since there will be plenty of sun, the solar panel will power the circuit and trickle charge the batteries during the day, and the batteries will take over from sundown to sunrise. But there's enough power to go for about 3 days with no sunlight.
I love how the Arduino (actually the Atmel microcontrollers) blurs the line between programming and electronics.
The 2GB SD card is a bit of overkill, but it's the only one I had around. It will store over 10 years of data. :)
solar monitor thingy
I built a gadget to do long-term temperature and humidity monitoring in Nevada. Since there will be plenty of sun, the solar panel will power the circuit and trickle charge the batteries during the day, and the batteries will take over from sundown to sunrise. But there's enough power to go for about 3 days with no sunlight.
I love how the Arduino (actually the Atmel microcontrollers) blurs the line between programming and electronics.
The 2GB SD card is a bit of overkill, but it's the only one I had around. It will store over 10 years of data. :)