Arduino pro mini undershield
I’ve designed another PCB 🙂 This time it’s a simple undershield for the Arduino pro mini. I received the PCB’s from Electrodragon (12$ for 10PCB’s) last week. The PCB has a Schottky diode and a 5V linear regulator, I’m using an LM2940 5V regulator. For the rest there are just 2 rows of female headers […]
Nano undershield revision 2
Almost a year ago I designed my first PCB. It was a small 50x50mm PCB that acts as an undershield for an Arduino Nano. I designed it because the Arduino Nano has a tiny 5V voltage regulator. To not overheat the regulator you can not draw more then 200-300mA from it depending on the input […]