I just got this from a store and I'd like to use it on my project (the content of the project itself is not important at all).
Now i've got a really, really dumb question : how do I use it with my Arduino ?
I mean I can just take the solderable thing and put it in Vin / GND but the contacts are bad and it doesn't seem to be able to stay in place...
I tried to put two standard wires in the holes of the connector... doesn't work.
So, what can I do ?
I precise the board I have for the loading is exactly the one on the photo.
Thank you in advance !
The connector must be soldered to the board in the location marked BAT-IN. A connector or wire must also be soldered to the SYS-OUT connector (notice how they give you several holes for each side, so you can choose a few different connectors).
From the "sys out" connector, you can connect your Arduino. You need a 3.3v arduino board (like a 3.3v/8mhz pro mini/nano) to run directly from a battery, since single cell LiPo batteries put out 3-4.2v (depending on state of charge), and you need to power the chip directly off the wires from the SYS OUT section of that board, not through a voltage regulator (so no Vin), because then the dropout will eat too much of the battery voltage.
For a 5V Arduino, connect to 5v/Gnd on the power header. DO NOT SWAP THEM! There is no protection at that point.
Or wire up a USB cable and plug into the USB connector.
Operation will be out spec once voltage drops below ~3.78V for 16 MHz operation, so you may see some erratic operation - serial problems are sometimes mentioned when power gets too low.
