Big clock with LED & Microchip PIC microcontroller

Digital clock with about 180 LEDs, realised in assembler with PIC 16F628.
Follwing protocls are used:
- SPI for output to LEDs
- DCF77 for automatic synchronisation with public time
- OneWire for digital temepreature sensor DS1820
- RC5 infrared receiver for setting time and display options with a regular TV remote
- I2C for Real Time Clock circuit PCF8583 (with small batery)

Category:

Science & Technology

Tags:

• clock
• big clock
• digital clock
• radio controlled
• LED
• microcontroller
• microchip
• DCF
• PIC
• 16f628
• assembler
• PWM
• IIC
• I2C
• OneWire
• RC5
• PIC Microcontroller
• Microchip Technology

[eightsydre]

hi! very good job!

can I make you some questions?

- how high is a number?

-how many LEDs did you use for a single segment?

-are they 5mm or 10mm LEDs?

thank you very much

eightsydre (from Italy)

[aleks1970nbg]

@eightsydre single segment has 5 LEDs, but 2 LEDs on the edge are common with neighbour-segments

[uzonigor]

Moze neka sema prijatelju?

[aleks1970nbg]

@uzonigor prijatelje, sema nece nista da ti pomogne jer je 90% softver. ovo je uradjeno sa mikrokontrolerom, to ti je neka vrsta kompjutera u malom: ima procesor, memoriju za program, radnu memoriju i jos par korisnih modula. A softver opet ne mogu da ti dam jer se nadam da ovo komercijalno iskoristim.

[bansha34]

dobro ti ovo miljence, jel imas jedno viska da metem na televiziju?

[aleks1970nbg]

@bansha34 imace moja keva :)

[aleks1970nbg]

@arnaud7380 no velleman, software, hardware and even mechanical plans are my own development. First development and programming the microcontroller was made with mikroelektronika EasyPic (I think I have generation 3)

[aleks1970nbg]

@eightsydre thanks,

- visible part of the digit is 12 cm, it could be a little bit bigger too

- 27 LEDs per digit plus point and double point after 2 digits

- this are 5 mm super bright, I think they have about 2700mCd per LED, for readability on the sunny day, You need something like this

[milanmladenovic]

Svaka cast



[arnaud7380]

Velleman Kit?