Yes, had you used the tutorial when it was written you would have purchased everything you needed. Since you used it 4 years later, things have changed a bit. The only thing missing is the electronics. The clue to you should have been when the link directed you to the home page rather than the electronics kit
BTW, the links have now been updated. Enjoy. If things change in the next 4 years, hopefully someone will not leave a snarky remark about how cruddy the time that I gave freely to help others was.
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