Spark Core running off 12V SLA battery. Well, not directly of course!
I’m using a DC-DC convertor to feed 3.3V to the core, bypassing the regulator. Working perfectly and using around 45mA of current @12V, which corresponds to around 150mA @3.3V assuming about 90% efficiency.
Connected to the Spark are: SHT21 Temp & Humitity sensor, BMP085 Temp & Pressure sensor, and an LDR to measure light level.
