Introduction
For a more complete discussion on power solution and stepup modules, see the post on Power solution for 3.7 volt Arduino.
When writing this, in 2019 (updating in 2020) there are 4 typical voltages used with Arduino and the power supplied:
- 3.3 volt for a range of individual components and modules
- 3.7 volt for lithium batteries
- 5 volt for most arduino boards and most individual components and modules
- +7 volt for use as input to a range of arduino boards (with internal regulation).
3.7 to 5v stepup
My first trials of connecting power via a battery to run my Arduino Spectrometer project included a DC-DC 1V-5V to 5V Stepup converter module allowing 500MA, that I got from Banggood.com.
