CW Keyer Using 90s8515 . Port A Pin 7 and 6 are Dit and Dash. Pins 0 and 1 are speed up and speed down. In wpm
LCD displays current WPM and Delay Spacing in ms. Port C pin 0 is Key out. Interfaces nicely with my little Pixie II RF transceiver. With a 5 volt regulator for the Atmel and an isolation transistor for the keying line. The Pixie II runs at 9v.
Any feedback is appreciated.