I need to power a NodeMCU (as far as I know it can work with 3v3 but I use some I2C modules that need 5V so let's power everything with 5V.)
- I have a Li-ion battery (3.7V.)
- I have a TP5046 based module (here) to manage the loading / discharging of the battery
This will lead to a rechargeable 3.7V power supply.
Then I have a one of those cheap power boosters from China (here) that brings the voltage up to 5V.
I'm a hobbyist electronic and I like to think about my modules as Lego pieces that I plug here and there. Any recomendations on how to piece the things together?
This is my proposal: