: Connected to pins (usually D2 for Left/Dit and D5 for Right/Dah) and pulled to ground.
Older schematics (pre-2015) use parallel 4-bit mode, which eats up 6 pins (RS, E, D4, D5, D6, D7). If you see a schematic with a 16-pin LCD connector and a potentiometer (10kΩ for contrast), that is a legacy parallel design. Avoid it unless you have the pins to spare. k3ng keyer schematic
The K3NG Keyer is a popular electronic keyer designed for amateur radio operators. It is an open-source, microcontroller-based keyer that can be used for Morse code transmission. The K3NG Keyer schematic is a crucial part of building and understanding the device. : Connected to pins (usually D2 for Left/Dit
The authoritative source is the ( github.com/k3ng/k3ng_keyer ). Look in: Avoid it unless you have the pins to spare
: The K3NG GitHub Wiki contains the most up-to-date documentation on feature-specific wiring.
Elias looked at his pile of fried components. "I don't have an Arduino Nano."