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Hey, I know this is taking you back a few years. Trying a similar project. I want to use the feed from my bike speed sensor to control the speed of my fan for indoor training. So far the module seems non-responsive. I'm wondering if I correctly interpreted the comments about CTS/pin 17: "The 1M ohm pull up resister on pin 17 is key. If you don't have it the board goes into sensRcore mode and will not respond to async communications.".On my Arduino, I have the ANT module RTS pin wired to pin 7, configured with pinMode INPUT_PULLUP. But I haven't found anything similar in either your code or the referenced DigitalHack code, so I wonder if I'm mis-interpretting the comment?