Below is a of the core keying section (no LCD, no encoder):
— 73, and happy homebrewing.
The K3NG firmware generates a sidetone square wave on a digital pin (usually D6 or D9 via PWM). However, a raw square wave is harsh and weak. The schematic typically includes: k3ng keyer schematic
Connect to digital pins (commonly pins 2 and 5 for left/right), pulled high by the Arduino's internal resistors. Transmitter Keying: Below is a of the core keying section
Below is a of the core keying section (no LCD, no encoder):
— 73, and happy homebrewing.
The K3NG firmware generates a sidetone square wave on a digital pin (usually D6 or D9 via PWM). However, a raw square wave is harsh and weak. The schematic typically includes:
Connect to digital pins (commonly pins 2 and 5 for left/right), pulled high by the Arduino's internal resistors. Transmitter Keying:
