Several of the boards need some preparation before they can be installed into the case. You will need to solder some wires on some of the boards. You can use soft silicone covered stranded wire for most of the connections, however some of them have to be pushed into a socket, so you will need solid core wire. We will make special note of which wires need to be solid core. Any other wires can be solid or stranded.
Preparing the Power Boost
The Power Boost 1000c requires a bit of assembly. You need to solder in the large USB A connector onto the board first. There are four small signal pins and 2 large mounting pins that need to be soldered.
Using wire cutters or side cutters, clip off one of the outside pins of the SPDT slide switch. Bend the other two leads 90° and insert them into the EN and GND holes of the power boost as seen in the image below. The switch should rest on the edge of the board as shown in the end view on the lower right.
You should solder 3 wires to the PowerBoost board. We like to use red wires for power and green wires for ground, but you can use any colors you want. Make a red wire about 3 inches long connected to the USB pin. Make a red wire about 5 inches long connected to the 5Vo pin. Make a green wire about 5 inches long connected to the GND pin that is adjacent to the 5Vo pin. Note that there is another GND pin, however it is already occupied by the slide switch. These wire lengths are approximate and we will trim them to the proper length later. See the image below.
Preparing the TFT Display Board
On the backside of the TFT display, there is a small solder pad labeled LITE. You need to solder a wire from that pad to the pad corresponding to pin 13 which is the fourth pin from the bottom on the 12 pin side of the feather socket. In the image below is the orange wire. You might want to tape down that wire or perhaps glue it to the board after you solder the ends in place. You will also need to connect a green ground wire about 3 inches long to the ground pad which is the fourth from the bottom on the 16 pin side. You will also need to make a 3 inch red power wire soldered to the pad for the USB pin of the Feather. It is the third from the bottom on the 12 pin side. These power and ground wires will come out from underneath the Feather board which will set on top of them. Refer to the image below for the exact locations.
Preparing the Feather M0 BLE
You should solder a standard set of header pins onto the Feather M0 BLE. The pins come with the board. You should also check to see that the Bluefruit firmware has been updated. For complete details on the use of this board check out its learning guide.
After you have confirmed that it is working using the sample sketches in that learning guide, you should disconnect the USB, plug it into the TFT Display Board, reconnect the USB, make sure that the on-off switch on the display board is on and try running some of the sample sketches for the display which can be found in this tutorial.
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