Description: This project uses an 8085 processor and an EPROM (the programmed EPROM is included with the boards) and displays the decoded CW on an Optrex DMC16202 liquid crystal display. The decoder will read CW and display between 15 to 99 WPM from the audio output of the receiver. ICs required are 8085A or A2, 74lS373, 8155, 74CT14, 74HCT138 and a 3.2768 MHz crystal.
Description: This project uses a programmed PIC processor to copy CW code from audio onto a 16x1 character LCD display. Decoding range is 5 to 30 WPM. Uses programmed PIC16F84, 4093, NE567, 78L05, 4 Mhz crystal, and Optrex 16117A LCD display. Note: A specifically programmed PIC is available for the Optrex DMC-16117A display. When ordering request the PIC for the OPTREX display.
QST Mar 00
Description: This is a CW store/play project that uses the ISD1110 IC. This project can store 10 seconds of CW message and replay with a push button. Project uses ISD1110 IC, 7805, 74LS14, LM386, and LM339. The board is 4" by 4" square.