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Make a Mind-Controlled Arduino Robot by Kimmo Karvinen, Tero Karvinen

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Appendix A. Building the ScrewShield

Start by putting two 8-pin headers (see Figure A-1) into the pin holes of the “digital” wing (the one with RX and TX pins). Use some poster putty such as Blu-Tack to hold pins in place (Figure A-2). Otherwise they will easily get misaligned when you are soldering them from the other side.

Contents of the ScrewShield package

Figure A-1. Contents of the ScrewShield package

Poster putty holds two 8-pin headers in place

Figure A-2. Poster putty holds two 8-pin headers in place

Mount the wing to third-hand tool or similar (Figure A-3). You can’t hold it yourself while you are soldering, as you need one hand for soldering iron and other for the solder. Turn the wing upside down and solder the pins in place.

Headers ready to be soldered

Figure A-3. Headers ready to be soldered

Now you need to do the same thing to the other wing. Secure the 6-pin headers with poster putty. Turn the wing upside down and solder (Figure A-4).

“Analog” wing with 6-pin headers

Figure A-4. “Analog” wing with 6-pin headers

The ScrewShield package includes a variety of terminal blocks. They can be connected by vertically sliding them together. Form two 6-pin blocks and two 8-pin blocks (Figure A-5).

Figure A-5. Forming two 6-pin blocks ...

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