CuVoodoo

the sorcery of copper

User Tools

Site Tools


led_clock

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Last revision Both sides next revision
led_clock [2016/04/15 12:17]
kingkevin add release
led_clock [2016/08/01 10:39]
kingkevin add DCF77 module
Line 7: Line 7:
 For that you will need: For that you will need:
   * WS2812b RGB LEDs strip (long enough to go around the clock)   * WS2812b RGB LEDs strip (long enough to go around the clock)
-  * development board with a STM32F103 micro-controller and 32.768 kHz oscillator for the Real Time Clock (such as the blue pill)+  * development board with a STM32F103 micro-controller and 32.768 kHz oscillator for the Real Time Clock (such as the blue pill), or external RTC module (such as the I2C DS1307)
   * coin cell battery to keep the RTC running (optional)   * coin cell battery to keep the RTC running (optional)
   * GL5528 photo-resistor to adjust the LED brightness (optional)   * GL5528 photo-resistor to adjust the LED brightness (optional)
 +  * DCF77 to automatically update the time (recommended)
  
 More details about the project can be found in the [[https://​git.cuvoodoo.info/​led_clock/​about/​|README]].\\ More details about the project can be found in the [[https://​git.cuvoodoo.info/​led_clock/​about/​|README]].\\
Line 20: Line 21:
 ==== add-on ==== ==== add-on ====
  
-{{  :​led_clock:​setup.jpg?​300|LED clock add-on}}+{{  :​led_clock:​setup-dcf.jpg?​300|LED clock add-on}}
 Here is the LED clock add-on: Here is the LED clock add-on:
-  - WS2812b LED strip 
   - blue pill development board with STM32F103 micro-controller   - blue pill development board with STM32F103 micro-controller
-  - USB for power, SWD adapter ​to flash, ​USB to UART converter to debug +  ​- tiny RTC I2C module with Maxim DS1307 RTC IC (not used in the end) 
-  - tiny RTC i2C module with Maxim DS1307 RTC IC+  - CR2032 coin cell battery (to keep the internal RTC running) 
 +  - DCF77 receiver module (salvaged from a radio clock) 
 +  ​- USB to power board and LEDs 
 +  - ST-Link V2 (clone) ​to program the micro-controller 
 +  - USB to UART converter to set time and debug 
 +  - WS2812b LED strip
   - GL5528 photo-resistor   - GL5528 photo-resistor
-  - CR2032 coin cell battery 
  
 ==== clock integration ==== ==== clock integration ====
led_clock.txt · Last modified: 2017/10/13 16:13 by kingkevin