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Firmware (HEX) file and C source code for the Nixie Clock Mk2 [1910215G.HEX]
Firmware and C source code (including MPLAB X project) for the Nixie Clock Mk2.
As the hardware comes exclusively as a kit from Gless Audio, the source code is provided mainly for those interested in seeing how it works. Kit purchasers could also use this to reprogram and customise their units.
Revision B fixes a problem with the current drain being too high in sleep mode, quickly discharging the super capacitor and also improves the user interface slightly.
Revision C fixes a problem with the daylight savings logic; in locations where daylight savings starts later in the year than it finishes, the calculations were wrong.
Revision D fixes a problem where the timezone offset was not being applied correctly, sometimes resulting in an hour reading of 24 for the hour after midnight. And in timezones with offsets that are not a whole number of hours, the top digit of minutes could be blank for the first minute of each hour.
Revision E fixes a problem where the unit was slow to get the time from the GPS module.
Revision F features further bugfixes and updates time zone data to the latest as of the end of 2015.
Revision G fixes more problems with time display and roll-over.
Included is the data and code to determine local time and date based on the UTC time/date, latitude and longitude from a GPS module. You can also get the latest version of this code from the following URL:
http://github.com/minitz/
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VK2828U7G5LF TTL GPS/GLONASS/GALILEO module with antenna and cable
A VK2828U7G5LF GPS module from GMOUSE. Data sheet is available at https://github.com/CainZ/V.KEL-GPS/blob/master/VK2828U7G5LF%20Data%20Sheet%2020150902.pdf
Features onboard ceramic patch antenna. Basic specifications are:
- 28 x 28 x 8.6mm
- 3.3-5V supply at 25-35mA
- TTL signalling, default 9600 baud
- Enable input, 1PPS output plus serial TX & RX with NMEA 0183
- Tracking sensitivity -162dBm, capture sensitivity -160dBm
- Cold start 26 seconds, hot start one second
- 1-10Hz updates
A short 6-way cable with plug is supplied. If you order this, you may receive a VK2828U8G5LF which is an updated version of the module with slightly better specifications but provides the same functions.
| Cat No SC3362. Price: AUD $25.00 1 |
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In stock:  yes (12 available). Estimated dispatch time: 1-3 days | Related to:
- Project: A GPS-Synchronised Clock (March 2009 [print issue] [online issue])
- Project: A GPS-Synchronised Clock (March 2009 [print issue] [online issue])
- Project: Dead-Accurate 6-Digit GPS-Locked Clock, Pt.1 (May 2009 [print issue] [online issue])
- Project: GPS Driver Module For The 6-Digit Clock, Pt.2 (June 2009 [print issue] [online issue])
- Project: GPS Synchronisation For Clocks With Sweep Hands (November 2009 [print issue] [online issue])
- Project: GPS Synchronisation For Clocks With Sweep Hands (November 2009 [print issue] [online issue])
- Project: A Multi-Function GPS Car Computer, Pt.1 (January 2010 [print issue] [online issue])
- Project: A Multi-Function GPS Car Computer, Pt.2 (February 2010 [print issue] [online issue])
- Project: Build A GPS Boat Computer (October 2010 [print issue] [online issue])
- Project: A 2.5GHz 12-digit Frequency Counter, Pt.1 (December 2012 [online issue])
- Project: A 2.5GHz 12-Digit Frequency Counter, Pt.2 (January 2013 [print issue] [online issue])
- Project: Accurate GPS 1pps Timebase For Frequency Counters (February 2013 [online issue])
- Project: Deluxe GPS 1pps Timebase For Frequency Counters (April 2013 [print issue] [online issue])
- Project: Build A GPS Tracker & Record Your Journeys (November 2013 [print issue] [online issue])
- Project: L-o-o-o-n-g Gating Times For The 12-Digit Counter (July 2014 [print issue] [online issue])
- Project: 6-Digit Retro Nixie Clock Mk.2, Pt.1 (February 2015 [print issue] [online issue])
- Project: 6-Digit Retro Nixie Clock Mk.2, Pt.2 (March 2015 [print issue] [online issue])
- Project: High Visibility 6-Digit LED GPS Clock (December 2015 [print issue] [online issue])
- Project: High Visibility 6-Digit LED GPS Clock, Pt.2 (January 2016 [print issue] [online issue])
- Project: Touch-Screen Boat Computer With GPS (April 2016 [print issue] [online issue])
- Project: Touchscreen Super Clock (July 2016 [print issue] [online issue])
- Project: GPS-synchronised Analog Clock Driver (February 2017 [print issue] [online issue])
- Circuit Notebook: Remote water level monitoring using LoRa and Arduino (July 2017 [print issue] [online issue])
- Project: An Arduino Data Logger with GPS (August 2017 [print issue] [online issue])
- Project: Arduino Data Logger Part 2 (September 2017 [print issue] [online issue])
- Feature: El Cheapo Modules Part 10: GPS receivers (October 2017 [print issue] [online issue])
- Project: Super Clock now shows your electricity tariff (July 2018 [print issue] [online issue])
- Project: GPS-synched Frequency Reference Pt.1 (October 2018 [print issue] [online issue])
- Project: GPS-synched, lab-quality frequency reference (Part 2) (November 2018 [print issue] [online issue])
- Project: Very accurate speedo, car clock & auto volume change (June 2019 [print issue] [online issue])
- Project: Advanced GPS Computer - Part 1 (June 2021 [print issue] [online issue])
- Project: Advanced GPS Computer – Part 2 (July 2021 [print issue] [online issue])
- Project: New GPS-Synchronised Analog Clock (September 2022 [print issue] [online issue])
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Nixie Clock Mk2 PCBs [19102151/2]
PCBs for the Nixie Clock Mk2.
Both double-sided PCB with plated through holes, solder masks and silkscreen overlays.
The lower board is 19102151 and meaures 144 x 64mm. The upper board is coded 19102152 and measures 144 x 59mm. Sold as a set.
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PIC32MX170F256B-I/SP programmed for the Nixie Clock Mk2 [1910215G.HEX]
A 32-bit PIC microcontroller in 28-pin DIP programmed for the Nixie Clock Mk2.
This is the new revised version which fixes the following bugs:
1) not going into sleep mode reliably (revB).
2) daylight savings calculation bug (revC)
3) roll-over to midnight showing 24:00:00 and in some cases, first minute of each hour not being displayed correctly (revD)
4) fixes slow GPS time acquisition (revE)
5) updated time zone data to latest as of end 2015 (revF)
6) fixed minutes roll-over for time zones not on hour boundaries (revG)
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