A dozen guys built one, and all but one got them working. I’m not sure why, but he decided to troubleshoot his Arduino at home.
Perhaps the most challenging part about building the kit was mounting the surface-mount inductor. The technique that I, and most of the other guys used, was to tin the pads, hold down the component with either a tweezers or needle nose pliers, and then reflow the solder. One guy had a heckuva time doing this as the component markings were slightly misprinted on his board, with the ink covering those pads. Carefully scraping off the ink with an X-acto knife remedied that situation.
Several people commented, “They’re cute, but what can you do with one of those things”? Well, the latest issue of QEX has an article that uses the Arduino as a keyer. As I noted in the previous blog post, I have an idea to use mine to interface a paddle to my computer, so that I can send code to the computer instead of typing on a keyboard. Another crazy idea I had was to hook a solenoid up to one of the outputs and key a straight key connected to a rig.
Of course, there are a bunch of other possible uses, including controlling a remote antenna switch and monitoring power supply or battery outputs. There are dozens of other applications outside the shack as well.
Of course, being ever vigilant for topics for future club meetings, the answer to the question, “What can you do with an Arduino”?, is now on our schedule. Next January or February, we’ll have a talk about a) how to program the Arduino and b) what one ham did with his.