https://github.com/devcybiko/rpi-binary-clock

Vintage Binary Clock project resurrected using RPi Pico
https://github.com/devcybiko/rpi-binary-clock

binary-clock micro-python rpi-pico

Last synced: about 1 month ago
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Vintage Binary Clock project resurrected using RPi Pico

• Host: GitHub
• URL: https://github.com/devcybiko/rpi-binary-clock
• Owner: devcybiko
• Created: 2023-07-09T01:58:34.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-12T06:46:59.000Z (11 months ago)
• Last Synced: 2024-10-01T05:10:57.202Z (about 1 month ago)
• Topics: binary-clock, micro-python, rpi-pico
• Language: Python
• Homepage: https://drfrancintosh.wordpress.com/pico-binary-clock/
• Size: 11.7 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# rpi-binary-clock



- Converting an old, broken Graymark Binary Clock to use RPi-Pico-W

- NOTE: I selected micropython over circuitpython because uPy supported the BLE chip

- I also use AdaFruit's BlueFruit app on iOS to communicate with the clock

    - in UART mode

- hard-coded to "mpy-uart"

- hard-coded UUID = `6E400001-B5A3-F393-E0A9-E50E24DCCA9E`

    - need to research how this number is created

## GPIO

- GPIO 0-3: Ones of seconds (0-9, little endian)

- GPIO 4-6: Tens of seconds (0-5, little endian)

- GPIO 7-10: Ones of minutes (0-9, little endian)

- GPIO 11-13: Tens of minutes (0-5, little endian)

- GPIO 14-17: Hours (1-12, little endian)

## FEATURES

- Bluetooth allows updating the time

    - format: HHMMSS

- Uses RTC Module for setting/getting time

## TODO

- wire circuit board

    - "risers" for RPi Pico W

    - ribbon cable to LEDs

    - ribbon cable to pushbuttons

- update BLE to use command line

    - perhaps `key=value` or `verb value`

- push buttons on the back

    - Hold

    - Slow

    - Fast

- 5V power supply?

    - battery powered currently

    - rechargeable batteries?

- Add config file (writable via BLE commands)

- Add WiFi time setting (NTP)

    - https://bhave.sh/micropython-ntp/

- Add WWVB Atomic clock time setting

- Add Date setting

- Add Timezone setting

- Add DST setting

- Add HTTP server?

- Add special "icon" displays

    - box, house, etc...

## FILES

- binary_clock.py: The main program

    - NOTE: Store as "main.py" to run at boot time

- ble_advertising.py: From uPy github repo

    - creates the bluetooth connection

- ble_simple_peripheral.py

    - creates the serial port connection

- ble_blink.py

    - exaple: toggle led with BLE

- localtime.py

    - sample of how to do the binary math etc...

## REFERENCES

- Hackster.io article on my project

    - https://www.hackster.io/news/greg-smith-gives-a-beloved-1970s-binary-clock-a-micropython-upgrade-with-a-raspberry-pi-pico-w-c814e78032a6

- Hackster.io article describing bluetooth low energy

    - https://www.hackster.io/Ramji_Patel/raspberry-pi-pico-w-and-bluetooth-low-energy-a829c7

- uPy Docs on BLE

    - https://docs.micropython.org/en/latest/library/bluetooth.html

- uPy Github Repo for BLE

    - https://github.com/micropython/micropython/tree/master/examples/bluetooth

- Graymark Binary Clock: https://www.worthpoint.com/worthopedia/vintage-binary-clock-graymark-model-19959448

- Bluefruit Connect App from AdaFruit

    - https://learn.adafruit.com/bluefruit-le-connect/ios-setup