Great chip. It's pretty easy to program with the Arduino IDE and I actually used my Uno as an FTDI board to program it. These things will hit! I accidentally applied 5V across VCC and signaled a few times and even applied it to the wrong pins and it still oscillates heavily. Highly recommend, they are neat and fun to play with. The WLAN range is also very good for such a small antenna. We have a big house and it connects to our wifi from the other end with no problem.
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