2 years ago 3878
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Arduino NANO VOX PTT for Baofeng. Interface to PC. Can use with Zello. Adjutable hold in code. Maybe add isolation transformers later. One channel for the trigger. Other channel audio pass through.


Nano VOX


ID Name Designator Footprint Quantity
1 5ffba375a47748b7bdd3088d49f8102a U1 ARDUINO NANO V3 1
2 e9a4859a68da49239669783280772e09 U2 ARDUINO RELAY 5V MODULE 30A 1
3 42f41c4372a2497eaca28a8a972f4701 U3 USB-AUDIO 1
4 4113638ea8154a0b852dd1f1992ccb3b VR1,VR2 P120PK-Y25BR10K 2
5 f881f877734c42e697202bee67ff495a U4 NONE 1
6 c996990367134df4854174670f257897 H1 HDR-2X1/2.54 1
7 09efa175c5c64586bbeabe037c12a3b3 R3 AXIAL10 1
8 08bb81d4785292e6ef4060d064db2f76 C1 CAP-D5.0XF2.0 1
9 aec9d688c115410a98acd57fe7421071 D1,D2 AXIAL-6.5X2.3(DIODES) 2
10 493fc66c46c1429bb207a059bfcbbee0 U5 DS3231 1
11 2191314250ed43a796b57d45825575c3 R1 AXIAL-0.3 1
12 ab559242ae424137a968fd90c9b3bb2e SW1 M9040P 1


Filename Download
VOX code UNO.txt
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Comments (1)

pattang2018 Reply

Code attached.
Easy to modify time delay.
Remove mic element from Sound Sensor then connect directly to speaker output from usb sound card one channel.Other channel is pass through to mic input on radio.
Sound level trigger trimmer on SoundSensor_Arduino_LM393
Simple circuit.
It works.

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