Silicon ChipMarket Centre - February 2025 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Staying on Windows 10
  4. Feature: Open-Source Software by Dr David Maddison, VK3DSM
  5. Feature: Using electronic modules - Mini UPS Module by Jim Rowe
  6. Subscriptions
  7. Project: High-Bandwidth Differential Probe by Andrew Levido
  8. Feature: Antenna Analysis, Part 1 by Roderick Wall, VK3YC
  9. Project: Wireless flashing LEDs by Tim Blythman
  10. Project: Transistor tester by Tim Blythman
  11. Feature: The PicoMite 2 by Geoff Graham & Peter Mather
  12. Project: IR Remote Control Keyfob by Tim Blythman
  13. PartShop
  14. Feature: Precision Electronics, Part 4 by Andrew Levido
  15. Project: Programmable Frequency Divider by Nicholas Vinen
  16. Serviceman's Log: Another busman’s holiday by Dave Thompson
  17. PartShop
  18. Vintage Radio: TRF-One AM radio by Dr Hugo Holden
  19. PartShop
  20. Market Centre
  21. Advertising Index
  22. Notes & Errata: Maxwell’s Equations, November 2024; Watering System Controller, August 2023
  23. Outer Back Cover

This is only a preview of the February 2025 issue of Silicon Chip.

You can view 43 of the 104 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Items relevant to "High-Bandwidth Differential Probe":
  • High-Bandwidth Differential Probe PCB [9015-D or 9051-D] (AUD $5.00)
  • High-Bandwidth Differential Probe PCB pattern (PDF download) [9015-D] (Free)
  • High-Bandwidth Differential Probe panel artwork and drilling details (Free)
Articles in this series:
  • Antenna Analysis, Part 1 (February 2025)
  • Antenna Analysis, Part 1 (February 2025)
  • Antenna Analysis, Part 2 (March 2025)
  • Antenna Analysis, Part 2 (March 2025)
  • Antenna Analysis, Part 3 (April 2025)
  • Antenna Analysis, Part 3 (April 2025)
Items relevant to "Wireless flashing LEDs":
  • Software for JMP021 - Wireless LEDs (Free)
Articles in this series:
  • Wired Infrared Remote Extender (May 2024)
  • Symbol USB Keyboard (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Thermal Fan Controller (May 2024)
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Self Toggling Relay (June 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Arduino Clap Light (June 2024)
  • Lava Lamp Display (July 2024)
  • Digital Compass (July 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • IR Helper (September 2024)
  • IR Helper (September 2024)
  • No-IC Colour Shifter (September 2024)
  • No-IC Colour Shifter (September 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • BIG LED clock (January 2025)
  • Transistor tester (February 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • Wireless flashing LEDs (February 2025)
  • Continuity Tester (March 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • RF Remote Receiver (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Items relevant to "Transistor tester":
  • Software for JMP020 - Transistor Tester (Free)
Articles in this series:
  • Wired Infrared Remote Extender (May 2024)
  • Symbol USB Keyboard (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Thermal Fan Controller (May 2024)
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Self Toggling Relay (June 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Arduino Clap Light (June 2024)
  • Lava Lamp Display (July 2024)
  • Digital Compass (July 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • IR Helper (September 2024)
  • IR Helper (September 2024)
  • No-IC Colour Shifter (September 2024)
  • No-IC Colour Shifter (September 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • BIG LED clock (January 2025)
  • Transistor tester (February 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • Wireless flashing LEDs (February 2025)
  • Continuity Tester (March 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • RF Remote Receiver (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Items relevant to "The PicoMite 2":
  • PicoMite 2 firmware (Software, Free)
Articles in this series:
  • The Raspberry Pi-based PicoMite (January 2022)
  • The Raspberry Pi-based PicoMite (January 2022)
  • VGA PicoMite (July 2022)
  • VGA PicoMite (July 2022)
  • The PicoMite 2 (February 2025)
  • The PicoMite 2 (February 2025)
Items relevant to "IR Remote Control Keyfob":
  • RFID Programmable IR Fob Remote PCB [15109231] (AUD $2.50)
  • PIC16F15224-I/SL programmed for the RFID Programmable IR Fob Remote [1510923A.HEX] (Programmed Microcontroller, AUD $10.00)
  • RFID Programmable IR Fob Remote complete kit (Component, AUD $25.00)
  • IR$ Remote Control Keyfob firmware [1510923A.HEX] (Software, Free)
  • RFID Programmable IR Fob Remote PCB pattern (PDF download) [15109231] (Free)
  • Sticker artwork for the RFID Programmable IR Fob Remote PCB (Panel Artwork, Free)
Articles in this series:
  • Precision Electronics, Part 1 (November 2024)
  • Precision Electronics, Part 1 (November 2024)
  • Precision Electronics, Part 2 (December 2024)
  • Precision Electronics, Part 2 (December 2024)
  • Precision Electronics, Part 3 (January 2025)
  • Precision Electronics, part one (January 2025)
  • Precision Electronics, part one (January 2025)
  • Precision Electronics, Part 3 (January 2025)
  • Precision Electronics, part two (February 2025)
  • Precision Electronics, Part 4 (February 2025)
  • Precision Electronics, Part 4 (February 2025)
  • Precision Electronics, part two (February 2025)
  • Precision Electronics, part three (March 2025)
  • Precision Electronics, part three (March 2025)
  • Precision Electronics, Part 5 (March 2025)
  • Precision Electronics, Part 5 (March 2025)
  • Precision Electronics, Part 6 (April 2025)
  • Precision Electronics, Part 6 (April 2025)
  • Precision Electronics, part four (April 2025)
  • Precision Electronics, part four (April 2025)
  • Precision Electronics, part five (May 2025)
  • Precision Electronics, Part 7: ADCs (May 2025)
  • Precision Electronics, part five (May 2025)
  • Precision Electronics, Part 7: ADCs (May 2025)
  • Precision Electronics, part six (June 2025)
  • Precision Electronics, part six (June 2025)
Items relevant to "Programmable Frequency Divider":
  • Programmable Frequency Divider/Counter PCB [04108241] (AUD $5.00)
  • PIC16F1455-I/SL programmed for the Programmable Frequency Divider [0410824A.HEX] (Programmed Microcontroller, AUD $10.00)
  • Programmable Frequency Divider kit (Component, AUD $60.00)
  • Software for the Programmable Frequency Divider (04108241A.HEX) (Free)
  • Programmable Frequency Divider/Counter PCB pattern (PDF download) [04108241] (Free)
Items relevant to "TRF-One AM radio":
  • TRF-One PCB pattern (PDF download) (Free)

Purchase a printed copy of this issue for $13.00.

MARKET CENTRE Advertise your product or services here in Silicon Chip FOR SALE FOR SALE USED ITEMS FOR SALE Retired Silicon Chip staff member Jim Rowe is trying to find good homes for the following items: 1. A Sony VPL-CSI LCD data and SVGA video projector ($100). 2. A Teac PC-10 portable stereo cassette recorder with ‘Dolby System’ and AC power pack ($75). 3. A Chinon 506-SM-XL Super-8 sound camera ($50). 4. A Pioneer VSX-D506 5-channel amplifier with a Dolby Digital decoder, and 100W output from each channel ($100). 5. An AKG D19C dynamic wideband cardioid microphone ($50). 6. An LG BP125 Blu-Ray player ($75). 7. A Toshiba SD-2500 DVD player ($40). 8. A Hantek DSO-2250 USB PC oscilloscope, with two 100MHz channels, plus an operating manual and a small software CD ($50). All of the above are available to be picked up from my home in Arncliffe, Sydney. Also available are quite a few mini file drawers with electronic components such as capacitors, resistors, transistors, ICs, LEDs and diodes, etc. These I’d be happy to give away if someone would be prepared to call and take them away. Please contact me by email to jimrowe<at>optusnet.com.au if any of the above is of interest. LEDsales KIT ASSEMBLY & REPAIR LEDS, BRAND NAME AND GENERIC LEDs, filament LEDs, LED drivers, heatsinks, power supplies, kits and modules, components, breadboards, hardware, magnets. Please visit www.ledsales.com.au DAVE THOMPSON (the Serviceman from Silicon Chip) is available to help you with kit assembly, project troubleshooting, general electronics and custom design work. No job too small. Based in Christchurch, New Zealand, but service available Australia/NZ wide. Email dave<at>davethompson.co.nz PMD WAY offers (almost) everything for the electronics enthusiast – with full warranty, technical support and free delivery worldwide. Visit pmdway.com to get started. KEITH RIPPON KIT ASSEMBLY & REPAIR: * Australia & New Zealand; * Small production runs. Phone Keith: 0409 662 794 keith.rippon<at>gmail.com FOR SALE: 600 used radio valves: 7-pin & 9-pin, condition not tested. The lot for $100 + postage. For more info email: Dieter Dauner, VK2EDD ddauner<at>bigpond.net.au PCB PRODUCTION PCB MANUFACTURE: single to multilayer. Bare board tested. One-offs to any quantity. 48 hour service. Artwork design. Excellent prices. Check out our specials: www.ldelectronics.com.au Advertising in Market Centre Classified Ad Rates: $32.00 for up to 20 words (punctuation not charged) plus $1.20 for each additional word. Display ads in Market Centre start at $82.50 per column centimetre per insertion. All prices include GST. Closing date: 5 weeks prior to month of sale. To book, email the text to silicon<at>siliconchip. com.au and include your name, address & credit card details, or phone (02) 9939 3295. WARNING! Silicon Chip magazine regularly describes projects which employ a mains power supply or produce high voltage. All such projects should be considered dangerous or even lethal if not used safely. Readers are warned that high voltage wiring should be carried out according to the instructions in the articles. When working on these projects use extreme care to ensure that you do not accidentally come into contact with mains AC voltages or high voltage DC. If you are not confident about working with projects employing mains voltages or other high voltages, you are advised not to attempt work on them. Silicon Chip Publications Pty Ltd disclaims any liability for damages should anyone be killed or injured while working on a project or circuit described in any issue of Silicon Chip magazine. Devices or circuits described in Silicon Chip may be covered by patents. Silicon Chip disclaims any liability for the infringement of such patents by the manufacturing or selling of any such equipment. Silicon Chip also disclaims any liability for projects which are used in such a way as to infringe relevant government regulations and by-laws. Advertisers are warned that they are responsible for the content of all advertisements and that they must conform to the Competition & Consumer Act 2010 or as subsequently amended and to any governmental regulations which are applicable. siliconchip.com.au Australia's electronics magazine February 2025  103