Silicon ChipWe will continue to offer printed and online magazines - July 2023 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: We will continue to offer printed and online magazines
  4. Feature: Charging Electric Vehicles by Dr David Maddison
  5. Feature: VL6180X Rangefinding Module by Jim Rowe
  6. Project: Dynamic NFC/RFID Tag by Tim Blythman
  7. Feature: Electronics Magazines in Aus. by Jim Rowe
  8. Project: Reciprocal Frequency Counter by Charles Kosina
  9. Project: Pi Pico Thermal Camera by Kenneth Horton
  10. Project: Railway Carriage Uncoupler by Les Kerr
  11. Subscriptions
  12. Vintage Radio: Replacing Vibrators, Pt2 by Dr Hugo Holden
  13. PartShop
  14. Serviceman's Log: Can’t stop servicing, even on holiday! by Dave Thompson
  15. Market Centre
  16. Advertising Index
  17. Notes & Errata: Loudspeaker Testing Jig, June 2023; Vintage Radio, Astor APN, May 2023
  18. Outer Back Cover

This is only a preview of the July 2023 issue of Silicon Chip.

You can view 38 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.

Articles in this series:
  • El Cheapo Modules From Asia - Part 1 (October 2016)
  • El Cheapo Modules From Asia - Part 1 (October 2016)
  • El Cheapo Modules From Asia - Part 2 (December 2016)
  • El Cheapo Modules From Asia - Part 2 (December 2016)
  • El Cheapo Modules From Asia - Part 3 (January 2017)
  • El Cheapo Modules From Asia - Part 3 (January 2017)
  • El Cheapo Modules from Asia - Part 4 (February 2017)
  • El Cheapo Modules from Asia - Part 4 (February 2017)
  • El Cheapo Modules, Part 5: LCD module with I²C (March 2017)
  • El Cheapo Modules, Part 5: LCD module with I²C (March 2017)
  • El Cheapo Modules, Part 6: Direct Digital Synthesiser (April 2017)
  • El Cheapo Modules, Part 6: Direct Digital Synthesiser (April 2017)
  • El Cheapo Modules, Part 7: LED Matrix displays (June 2017)
  • El Cheapo Modules, Part 7: LED Matrix displays (June 2017)
  • El Cheapo Modules: Li-ion & LiPo Chargers (August 2017)
  • El Cheapo Modules: Li-ion & LiPo Chargers (August 2017)
  • El Cheapo modules Part 9: AD9850 DDS module (September 2017)
  • El Cheapo modules Part 9: AD9850 DDS module (September 2017)
  • El Cheapo Modules Part 10: GPS receivers (October 2017)
  • El Cheapo Modules Part 10: GPS receivers (October 2017)
  • El Cheapo Modules 11: Pressure/Temperature Sensors (December 2017)
  • El Cheapo Modules 11: Pressure/Temperature Sensors (December 2017)
  • El Cheapo Modules 12: 2.4GHz Wireless Data Modules (January 2018)
  • El Cheapo Modules 12: 2.4GHz Wireless Data Modules (January 2018)
  • El Cheapo Modules 13: sensing motion and moisture (February 2018)
  • El Cheapo Modules 13: sensing motion and moisture (February 2018)
  • El Cheapo Modules 14: Logarithmic RF Detector (March 2018)
  • El Cheapo Modules 14: Logarithmic RF Detector (March 2018)
  • El Cheapo Modules 16: 35-4400MHz frequency generator (May 2018)
  • El Cheapo Modules 16: 35-4400MHz frequency generator (May 2018)
  • El Cheapo Modules 17: 4GHz digital attenuator (June 2018)
  • El Cheapo Modules 17: 4GHz digital attenuator (June 2018)
  • El Cheapo: 500MHz frequency counter and preamp (July 2018)
  • El Cheapo: 500MHz frequency counter and preamp (July 2018)
  • El Cheapo modules Part 19 – Arduino NFC Shield (September 2018)
  • El Cheapo modules Part 19 – Arduino NFC Shield (September 2018)
  • El cheapo modules, part 20: two tiny compass modules (November 2018)
  • El cheapo modules, part 20: two tiny compass modules (November 2018)
  • El cheapo modules, part 21: stamp-sized audio player (December 2018)
  • El cheapo modules, part 21: stamp-sized audio player (December 2018)
  • El Cheapo Modules 22: Stepper Motor Drivers (February 2019)
  • El Cheapo Modules 22: Stepper Motor Drivers (February 2019)
  • El Cheapo Modules 23: Galvanic Skin Response (March 2019)
  • El Cheapo Modules 23: Galvanic Skin Response (March 2019)
  • El Cheapo Modules: Class D amplifier modules (May 2019)
  • El Cheapo Modules: Class D amplifier modules (May 2019)
  • El Cheapo Modules: Long Range (LoRa) Transceivers (June 2019)
  • El Cheapo Modules: Long Range (LoRa) Transceivers (June 2019)
  • El Cheapo Modules: AD584 Precision Voltage References (July 2019)
  • El Cheapo Modules: AD584 Precision Voltage References (July 2019)
  • Three I-O Expanders to give you more control! (November 2019)
  • Three I-O Expanders to give you more control! (November 2019)
  • El Cheapo modules: “Intelligent” 8x8 RGB LED Matrix (January 2020)
  • El Cheapo modules: “Intelligent” 8x8 RGB LED Matrix (January 2020)
  • El Cheapo modules: 8-channel USB Logic Analyser (February 2020)
  • El Cheapo modules: 8-channel USB Logic Analyser (February 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules (May 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules (May 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules, Part 2 (June 2020)
  • New w-i-d-e-b-a-n-d RTL-SDR modules, Part 2 (June 2020)
  • El Cheapo Modules: Mini Digital Volt/Amp Panel Meters (December 2020)
  • El Cheapo Modules: Mini Digital Volt/Amp Panel Meters (December 2020)
  • El Cheapo Modules: Mini Digital AC Panel Meters (January 2021)
  • El Cheapo Modules: Mini Digital AC Panel Meters (January 2021)
  • El Cheapo Modules: LCR-T4 Digital Multi-Tester (February 2021)
  • El Cheapo Modules: LCR-T4 Digital Multi-Tester (February 2021)
  • El Cheapo Modules: USB-PD chargers (July 2021)
  • El Cheapo Modules: USB-PD chargers (July 2021)
  • El Cheapo Modules: USB-PD Triggers (August 2021)
  • El Cheapo Modules: USB-PD Triggers (August 2021)
  • El Cheapo Modules: 3.8GHz Digital Attenuator (October 2021)
  • El Cheapo Modules: 3.8GHz Digital Attenuator (October 2021)
  • El Cheapo Modules: 6GHz Digital Attenuator (November 2021)
  • El Cheapo Modules: 6GHz Digital Attenuator (November 2021)
  • El Cheapo Modules: 35MHz-4.4GHz Signal Generator (December 2021)
  • El Cheapo Modules: 35MHz-4.4GHz Signal Generator (December 2021)
  • El Cheapo Modules: LTDZ Spectrum Analyser (January 2022)
  • El Cheapo Modules: LTDZ Spectrum Analyser (January 2022)
  • Low-noise HF-UHF Amplifiers (February 2022)
  • Low-noise HF-UHF Amplifiers (February 2022)
  • A Gesture Recognition Module (March 2022)
  • A Gesture Recognition Module (March 2022)
  • Air Quality Sensors (May 2022)
  • Air Quality Sensors (May 2022)
  • MOS Air Quality Sensors (June 2022)
  • MOS Air Quality Sensors (June 2022)
  • PAS CO2 Air Quality Sensor (July 2022)
  • PAS CO2 Air Quality Sensor (July 2022)
  • Particulate Matter (PM) Sensors (November 2022)
  • Particulate Matter (PM) Sensors (November 2022)
  • Heart Rate Sensor Module (February 2023)
  • Heart Rate Sensor Module (February 2023)
  • UVM-30A UV Light Sensor (May 2023)
  • UVM-30A UV Light Sensor (May 2023)
  • VL6180X Rangefinding Module (July 2023)
  • VL6180X Rangefinding Module (July 2023)
  • pH Meter Module (September 2023)
  • pH Meter Module (September 2023)
  • 1.3in Monochrome OLED Display (October 2023)
  • 1.3in Monochrome OLED Display (October 2023)
  • 16-bit precision 4-input ADC (November 2023)
  • 16-bit precision 4-input ADC (November 2023)
  • 1-24V USB Power Supply (October 2024)
  • 1-24V USB Power Supply (October 2024)
  • 14-segment, 4-digit LED Display Modules (November 2024)
  • 0.91-inch OLED Screen (November 2024)
  • 0.91-inch OLED Screen (November 2024)
  • 14-segment, 4-digit LED Display Modules (November 2024)
  • The Quason VL6180X laser rangefinder module (January 2025)
  • TCS230 Colour Sensor (January 2025)
  • The Quason VL6180X laser rangefinder module (January 2025)
  • TCS230 Colour Sensor (January 2025)
  • Using Electronic Modules: 1-24V Adjustable USB Power Supply (February 2025)
  • Using Electronic Modules: 1-24V Adjustable USB Power Supply (February 2025)
Items relevant to "Dynamic NFC/RFID Tag":
  • Large Dynamic RFID Tag PCB [06101232] (AUD $4.00)
  • Small Dynamic RFID tag PCB [06101231] (AUD $1.50)
  • Small Dynamic RFID Tag kit (Component, AUD $5.00)
  • Credit card size Dynamic RFID Tag kit (Component, AUD $7.50)
  • Dynamic NFC/RFID Tag programming software (Free)
  • Dynamic NFC/RFID Tag PCB patterns [06101231/2] (Free)
Articles in this series:
  • History of Silicon Chip, Part 1 (August 2022)
  • History of Silicon Chip, Part 1 (August 2022)
  • History of Silicon Chip, Part 2 (September 2022)
  • History of Silicon Chip, Part 2 (September 2022)
  • Electronics Magazines in Aus. (July 2023)
  • Electronics Magazines in Aus. (July 2023)
Items relevant to "Reciprocal Frequency Counter":
  • Reciprocal Frequency Counter main PCB (CSE230101C) (AUD $5.00)
  • 0.96in cyan OLED with SSD1306 controller (Component, AUD $10.00)
  • Short-form kit for the Reciprocal Frequency Counter (Component, AUD $60.00)
  • Reciprocal Frequency Counter front panel PCB (CSE230102) (AUD $5.00)
  • Reciprocal Frequency Counter firmware (Software, Free)
  • Reciprocal Frequency Counter main PCB pattern (PDF download) [CSE230101C] (Free)
  • Reciprocal Frequency Counter front panel artwork (PDF download) (Free)
Items relevant to "Pi Pico Thermal Camera":
  • Raspberry Pi Thermal Camera PCB [04105231] (AUD $5.00)
  • Raspberry Pi-based Thermal Camera software & 3D printer files (Free)
  • Pi Pico Thermal Camera PCB pattern (PDF download) [04105231] (Free)
Items relevant to "Railway Carriage Uncoupler":
  • Model Railway Uncoupler PCB [09105231] (AUD $2.50)
  • PIC12F617-I/P programmed for the Model Railway Uncoupler [0910523A.HEX] (Programmed Microcontroller, AUD $10.00)
  • Model Railway Uncoupler firmware [0910523A.HEX] (Software, Free)
  • Model Railway Uncoupler PCB pattern (PDF download) [09105231] (Free)
Items relevant to "Replacing Vibrators, Pt2":
  • Oscillator-Based Vibrator Mosfet replacement PCB [18106231] (AUD $2.50)
  • Oscillator-based Mosfet Vibrator Replacement PCB pattern (PDF download) [18106231] (Free)
Articles in this series:
  • Servicing Vibrators, Pt1 (June 2023)
  • Servicing Vibrators, Pt1 (June 2023)
  • Replacing Vibrators, Pt2 (July 2023)
  • Replacing Vibrators, Pt2 (July 2023)
  • Replacing Vibrators, Pt3 (August 2023)
  • Replacing Vibrators, Pt3 (August 2023)

Purchase a printed copy of this issue for $11.50.

SILICON SILIC CHIP www.siliconchip.com.au Publisher/Editor Nicholas Vinen Technical Editor John Clarke – B.E.(Elec.) Technical Staff Jim Rowe – B.A., B.Sc. Bao Smith – B.Sc. Tim Blythman – B.E., B.Sc. Advertising Enquiries (02) 9939 3295 adverts<at>siliconchip.com.au Regular Contributors Allan Linton-Smith Dave Thompson David Maddison – B.App.Sc. (Hons 1), PhD, Grad.Dip.Entr.Innov. Geoff Graham Associate Professor Graham Parslow Dr Hugo Holden – B.H.B, MB.ChB., FRANZCO Ian Batty – M.Ed. Phil Prosser – B.Sc., B.E.(Elec.) Cartoonist Louis Decrevel loueee.com Founding Editor (retired) Leo Simpson – B.Bus., FAICD Silicon Chip is published 12 times a year by Silicon Chip Publications Pty Ltd. ACN 626 922 870. ABN 20 880 526 923. All material is copyright ©. No part of this publication may be reproduced without the written consent of the publisher. Subscription rates (Australia only) 6 issues (6 months): $65 12 issues (1 year): $120 24 issues (2 years): $230 Online subscription (Worldwide) 6 issues (6 months): $50 12 issues (1 year): $95 24 issues (2 years): $185 For overseas rates, see our website or email silicon<at>siliconchip.com.au Recommended & maximum price only. Editorial office: Unit 1 (up ramp), 234 Harbord Rd, Brookvale, NSW 2100. Postal address: PO Box 194, Matraville, NSW 2036. Phone: (02) 9939 3295. ISSN: 1030-2662 Printing and Distribution: Editorial Viewpoint We will continue to offer printed and online magazines The landscape of print media is changing, with many publications recently going ‘online only’. Given the popularity of the printed version of Silicon Chip magazine, we have no plans to follow that trend. Since our introduction of PDF downloads for the online edition in 2020, an increasing number of readers have moved to the digital edition. Still, a significant majority continue to value the tactile experience of a printed magazine. We intend to cater to both preferences, with no plans of discontinuing the print edition in the foreseeable future. We also offer a hybrid option, providing access to both the printed magazine and the online edition for a small extra cost. This popular choice allows you to enjoy the ease of browsing through a physical copy while benefiting from the advanced search capabilities of our online platform. On the topic of subscriptions, I can’t stress enough how vital they are for Silicon Chip. While I understand and appreciate the appeal of picking up a copy from your local newsagent, direct subscriptions form the core support for our magazine. I encourage our readers to consider subscribing if you don’t already. Not only is it cost-effective, with free home delivery, it also helps us reduce waste. Here’s why: for newsstand sales, we print more copies than we sell, and the leftovers are recycled. While an inevitable part of that distribution model, it is inefficient and not ideal for the environment. If more of our readers subscribed, we could print the exact number of magazines needed, reducing paper waste and saving on printing costs. It’s a win-win scenario! Subscribing offers yet another advantage – it lets you lock in the magazine’s pricing. It has been almost two years since our last price increase, and we’re due for a review later this year. If you take out a two-year print subscription now within Australia, you’ll pay $230 or $9.58 per issue for 24 issues, no matter what price changes occur during that period. In the face of rising paper costs, exacerbated by recent global challenges like COVID-19 and high inflation, our commitment to keeping the magazine affordable while producing great content has required careful management. Subscribers help us achieve the stability to keep it going long-term. I understand that subscribing might not suit everyone’s circumstances. Still, even if a small percentage of our non-subscriber readers were to take up direct subscriptions, it would significantly contribute to the longevity of Silicon Chip. If you’re contemplating a subscription, please visit our website at siliconchip.au/Shop/SubRates for options, siliconchip.au/Shop/Subscribe to sign up, or call our office to discuss it further. Your continued support ensures that Silicon Chip can continue to produce quality content. Finally, regarding the price review mentioned above, we will provide warning about any price changes, giving you time to take out or renew a subscription at the current price if you want. Expect an update in the September issue. Cover image: https://unsplash.com/photos/MBW3F1jEhh0 by Nicholas Vinen 24-26 Lilian Fowler Pl, Marrickville 2204 2 Silicon Chip Australia's electronics magazine siliconchip.com.au