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> Nixie gps dst clock project kit pic microcontroller rtc
Nixie gps dst clock project kit pic microcontroller rtc
What is included and what is not
NCV2.1-14 is the nixie clock kit without the enclosure. The kit contains all required electronic parts, both PCBs as well as preprogrammed PICmicro microcontroller. Mechanical assembly parts are included as well.
6x IN-14 nixie tubes and 2x IN-3 column separator bulbs are included.
Board is not assembled and is provided as a kit.
Wall-cube power supply and GPS receiver are not included. You can get them in your local store. GPS receiver is optional, clock is fully functional without it.
The clock is professionally designed using the cutting-edge tools and technologies. PCBs are routed in consideration with thermal dissipation, shortest paths, signal interference and shielding. The best FR4 material is used. All electronic parts are the best quality and comes from the famous producers such as: Philips, Microchip, Texas Instruments, STM, Maxim-Dallas, International-Rectifier, Yageo, Jauch, Maxell, Tokin, Bourns, ACP, Jamicon and others.
The clock's firmware is driven by operating system and is able to work in multitasking mode. Several industrial protocols are involved and dozens of tasks and algorithms are coded. It is quite complex and contains many thousands of code lines. It is programmed so that all settings and tube's lifetime counter values are stored in the battery back upped memory and are kept safely during the power outage. Moreover, time and date are still counted when the clock has no power. An absolute accuracy may be achieved using GPS synchronization. Clock is fully functional without a GPS receiver.
Current version of firmware: v1.3.
Programmable leading zero suppression
Programmable DST correction (custom rules for various countries including new rules for USA and Canada introduced in 2007)
Automatic leap year correction
Programmable column separators (Lit all the time, blink 1Hz, AM/PM)
Programmable tubes shut-down during night time (high voltage power supply complete shutdown)
Crossfading with selectable deep (25 options)
Selectable refresh rate of tubes (3 options)
Tube's lifetime counter (16-bit, up to 65535 hours)
GPS time and date synchronization
Selectable time-zone (all time zones)
Cathode poisoning prevention
Sandwich design ensures optimal occupied space and shape
Through hole components for easy assembling
Microchip PIC16F876A main controller with 8K flash
Real Time Clock with battery back-up (CR2032 Lithium battery)
Tube's drive mode: 3x2 multiplex
High voltage power supply with PWM control and software shut-down
Power supply: 9-12V @ 500-1000mA DC; 5.5/2.1mm jack with positive inner
Incorrect polarity and current over-consumption protection
High precision (10ppm) timebase XTAL
High quality printed circuit boards
Video clip of running clock (divx codec is required)
