Disable 3v3 to camera and SD-card for solar powered project

[ScruffR]

You should be able to use the Li+ pin to get the full LiPo power to drive the camera.
Alternatively you can use a boost-converter like this.

Pololu 5V Step-Up Voltage Regulator U1V11F5

This even has a Sleep pin to power it of when not needed.
I have used that one for another camera project with Electron

uCAM III-application (including TCP- and HTTP transfer)

I’m using the uCAM III from 4D Systems on a Particle Electron. The end goal is to take two pictures a day, and upload them to a webserver, For the time being though, I have limited my efforts to just taking a picture locally and sending it over serial. I use this Arduino library. Note that although it is designed for the uCAM II, there is backward compatibility so whatever code works on the II should also work on the III. Please note that my understanding of electronics and coding is pretty li…