Emergency power system - logistic

Sometime the power can goes off in the area.

I decided to buy an EF ECOFLOW Solar Generator DELTA 2 Max 2048Wh with 400 W solar panel to charge the Solar generator for long outages.

tRPOf with Trinket - updated

This article is about a RPOf circuit for the Raspberry Pi using a Trinket, thus the name  tRPOf.
The main difference from previous ones, is that this project uses a standard Adafruit Trinket as microcontroller instead the MSP430 in order to use "off the shelf" components with less effort of programming and a LiPo charger/USB DC/DC converter..

5V Solar Power Supply - testing results

As described in the 5V Solar Power Supply - testing system article, here some results after running tests for a while.

First of all, I did connected the data logger to the battery terminal and let it run for few days, with the load connected, drawing around 350mA.
Here a graph, starting with the battery charged.
Once the battery was depleted, with the load connected there is no way to have it recharged enough.
The weather was good at least for the last two days, so plenty of sun, but even with the 3W solar panel the battery was unable to be charged enough.

This indicates anyway the need to disconnect the DC/DC converter in order to have the battery charged.

5V Solar Power Supply - testing system

In order to test the solar power supply without connecting the Raspberry (also because used to monitor the solar charger itself), here how I'm proceding.

Office gadget - the Fhelper

Ok, this is just for fun.