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Firmware (C and HEX) files for the GPS-synchronised Analog Clock [04120217A.HEX/04130217A.HEX]
HEX file and C source code for the 8-bit PIC16LF88-I/P microcontroller in the GPS-synchronised Analog Clock project.
All versions of the firmware, including HEX and C files, are contained in the ZIP supplied. The C code is compiled using the CCS PIC16 compiler.
These are updated versions of the firmware which solve problems with the USB serial port. Note that it's necessary to install a different HEX file depending on which serial port you are using; see the README file in the zip.
Update 15/03/2017 - two bugs were identified which are now fixed in v2.6 (stepping) and v1.3 (sweep). These are: clock drive pin RA1 (#18) not toggling properly for the stepping version and with both versions, a GPS parsing error which could cause a failure to operate correctly with certain GPS modules.
Update 29/09/2017 - fixed a bug in the sweep hand version, with the same clock drive problem as the stepping mentioned above. The version number is now 1.4.
This project is now obsolete. It has been replaced with the new version from September 2022 - see https://siliconchip.au/Shop/?article=15466
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CP2102-based USB/TTL serial converter with microUSB socket and 6-pin right-angle header
Note: that there is a separate CP2102 that comes with jumper cable, 5-pin header and a regular USB connector. This is used for other projects and the respective details can be found here: http://www.siliconchip.com.au/Shop/7/3437
A small USB/serial converter module with a microUSB connector - no cable included. Can be used to build the Touchscreen Appliance Energy Meter or to add a USB port to another project which uses an RS-232 TTL serial interface.
Modern operating systems like Windows 10 should not require any drivers to use this device - plug it in and it should be recognised and ready to use straight away.
We have only tested this adaptor in Windows; it should work with Linux and Mac OSX.
Please note: we have had reports that the 3.3V output is actually closer to 4.2V. You should check this voltage before connecting anything critical.
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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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| View 117 other items relevant to the same project(s) |
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CP2102-based USB/TTL serial converter with microUSB socket and 6-pin right-angle header (clone version)
A small USB/serial converter module with a microUSB connector - no cable included. Can be used to build the Touchscreen Appliance Energy Meter or to add a USB port to another project which uses an RS-232 TTL serial interface.
Modern operating systems like Windows 10 should not require any drivers to use this device - plug it in and it should be recognised and ready to use straight away.
We have only tested this adaptor in Windows; it should work with Linux and Mac OSX.
Please note: this is a clone version which works but the 3.3V output is actually closer to 4.2V. We have reduced the price because of this.
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GPS-synchronised Analog Clock Driver PCB [04202171]
PCB for the GPS-synchronised Analog Clock Driver.
Double-sided PCB with plated through holes, solder mask and silkscreen overlay, 140 x 61.5mm.
This project is now obsolete. It has been replaced with the new version from September 2022 - see https://siliconchip.au/Shop/?article=15466
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PIC16LF88-I/P programmed for the GPS-Synchronised Analog Clock for movements with stepping hands [04120217A.HEX]
A PIC16LF88-I/P 8-bit Microcontroller programmed for the GPS-Synchronised Analog Clock (04120217A.HEX).
This chip is programmed with the v2.6 firmware, to suit clock movements with a stepping second hand.
This project is now obsolete. It has been replaced with the new version from September 2022 - see https://siliconchip.au/Shop/?article=15466
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PIC16LF88-I/P programmed for the GPS-Synchronised Analog Clock for movements with sweep hands [04130217A.HEX]
A PIC16LF88-I/P 8-bit Microcontroller programmed for the GPS-Synchronised Analog Clock (04130217A.HEX).
This chip is programmed with the v1.4 firmware, to suit clock movements with a sweep second hand.
This project is now obsolete. It has been replaced with the new version from September 2022 - see https://siliconchip.au/Shop/?article=15466
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GPS-synchronised Analog Clock Driver PCB pattern (PDF download) [04202171]
PDF with the PCB design for the GPS-synchronised Analog Clock Driver (double-sided).
Both layers are in a single PDF.
This project is now obsolete. It has been replaced with the new version from September 2022 - see https://siliconchip.au/Shop/?article=15466
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