April's Transmitter hunt is on the 10th and starts at the Southern starting point at 2pm, staging & mileages will be taken at 1:30pm. Coordination or assistance is on the H2 repeater 449.925 (-) pl 131.8Hz . Andy KJ7RFN will be hiding the transmitter.
Arduino NANO Shield Transmitter Controller
The Arduino NANO1-SS Transmitter Controller is available with solid-state PTT switching as above.
Arduino NANO1-R relay version has dry NO & Common contacts for keying the transmitter’s PTT line that has issues with solid-state switches. See below.
The 5-pin connector provides Ground, Incoming supply voltage, Transmitter PTT, Transmitter Audio Input, one pin is a spare for additional functions into or out of the NANO1 Shield..
Unit comes assembled and tested using a standard T-Hunt controller Arduino sketch.