TLZ v.2 - LED Wall Clock with time backup  
Characteristic of Clock Display:
  • Display time in 24 hours
  • Configurable display date
  • Configurated display temperature (option)
  • Height of digit 10 cm
  • Automatic light adjustment
  • Frame made of HPL
  • Red plexiglas filer
  • Supply 230V AC (max 20VA)
  • Protection IP44, class II
  • Work temperature 0°C - 40°C
  • Dimensions 50x20x7cm
Zmień język
Price USD: 499.00 $ + Tax  
Schematic Manual

The electronic clock is simple device showing time in 24 hours system. After changing software and adding temperature probe is also possible to display temperature. To display values was applied super light 7 segments displays 4.0 (101.6mm) with common anode. Clock was built on specialized chip Maxim-Dallas DS1307 with I2C interface and battery backup. Instead of battery was used high volume capacitor. ATMega8, which communicated via RS485 interface with each small board which managed 7-segment displays. Every digit display has got an independent impulse supply circuit, what allowed to automatic adjustment of light intensity depend on data from main controller, which measure external light and adjust level of LED lighting. Plexiglas filter excellent guarantee perfect contrast. Setting time is carried out by four buttons remote control cooperative with Micro Link RX-6 module. The communication is protected by KeeLoq coding. Work frequency is 433,92 MHz and range 100m. The clock can be install outside, but must be protect against water or snow.