Powering a 5v device via Electron’s Lipo
Hello, I’m using an Electron to read values from a temperature sensor which requires 3V and an air quality sensor with requires 5V. I’m powering the system with a 3.7 Lipo battery and I’m using a Boost Converter from Adafruit to step up the voltage to 5v to power an air quality sensor which draws about 250mA.
I see three different options to connect the voltage booster, and I wonder which is the best or if there’s any difference at all.
See my drawing.
#1: Boost converter attached to the 3.3v output on the electron in parallel with the 3V temp. sensor
#2: Boost converter attached to the LiPo in parallel with electron
#3: Boost and LiPo attached to the Vin of the electron.