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Raspberry pi ham radio3/12/2024 ![]() The software is designed to let you use just UTC 24hr (typical hams) or different times on up to 4 different displays. I also wanted the clock to show the local time in 12hr and 24hr formats as well as UTC in 12hr and 24hr formats. I am planning another version of this clock to run on an Arduino Uno and a real-time clock module, for when no WiFi is available and for more portable operation. ![]() It requires two wires to drive the display plus 5V+ and Ground for a total of 4 wires.įor this particular project, I wanted the RasPi to get its time from NTP (Network Time Protocol) servers via the Internet. The TM1637 driven display has four 7-segment LEDs with a center colon “:”between two sets of digits. ![]() I decided to build a digital clock using the low-cost TM1637 4-digit displays and a Raspberry Pi Zero W instead of just a GUI clock. Amateur Radio Operators (aka HAM Radio) use 24 hour UTC (Universal Coordinated Time) for much of their operation.
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