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A professional repack includes a small circuit to protect the Arduino pins from static (ESD) and RFI.
Typically a 2N2222 or 2N7000 transistor and a resistor (usually 1k to 4.7k ohms) to safely key your transmitter.
This is the output that actually keys your transmitter. The Arduino uses another output pin to control a transistor that acts as a switch, grounding the key line of your radio.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
A professional repack includes a small circuit to protect the Arduino pins from static (ESD) and RFI. k3ng keyer schematic repack
Typically a 2N2222 or 2N7000 transistor and a resistor (usually 1k to 4.7k ohms) to safely key your transmitter. This public link is valid for 7 days
This is the output that actually keys your transmitter. The Arduino uses another output pin to control a transistor that acts as a switch, grounding the key line of your radio. k3ng keyer schematic repack