ChipsHackadayabout 1 hour ago
Pocket Pico Revives Heathkit Packet Radio
2 min read
A maker known as btech has built the Pocket Pico, a modern recreation of the Heathkit HK-21 Pocket Packet terminal node controller. It runs the original HK-21 firmware on a Raspberry Pi Pico via a Z80 emulator, handling Bell 202 tones at 1200 baud without a modem chip. It supports APRS, AX.25 Level 2 and a built-in bulletin board.
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