I thought you guys might like to see this boost circuit. It takes a single AA and boosts it to 3.3 V or 5 V for prototyping. It allows you to bring the power to your project, and not the other way around. Bring your micro to the sensor without running wires! A single AA battery is used to provide breadboard power of 5V or 3.3V (or other voltages by tuning the feedback resistors). A boost regulator provides the voltage.
This board plugs right into an Arduino or a breadboard or perfboard. I have ended up using it all the time for all sorts of different things, from Wi-Fi, to sensors, to just charging supercaps for experiments. I really like not having to have a power supply for every little project, and my workbench is a lot cleaner without all the wires. There’s a link to buy one from Kickstarter on the Hackaday page if anyone is interested.
https://hackaday.io/project/7050-boosti … ge-booster
https://cdn.hackaday.io/images/2595461458333098174.jpg
