Silicon ChipMore articles than space - a good problem to have! - January 2021 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: More articles than space - a good problem to have!
  4. Feature: Automotive Electronics, Part 2 by Dr David Maddison
  5. Project: AM/FM/SW Single-Chip Digital Radio by Charles Kosina
  6. Review: Altium 365 and Altium Designer 21 by Tim Blythman
  7. Project: MiniHeart: A Miniature Heartbeat Simulator by John Clarke
  8. Feature: How to use the MPLAB X Development Environment by Tim Blythman
  9. Serviceman's Log: One good turn deserves another by Dave Thompson
  10. Project: The Bass Block Subwoofer by Nicholas Dunand
  11. Project: Busy Loo Indicator by John Chappell
  12. Feature: AVR128DA48 and Curiosity Nano Evaluation Board by Tim Blythman
  13. Product Showcase
  14. Vintage Radio: 1963 Philips Musicmaker MM1 mantel radio by Associate Professor Graham Parslow
  15. PartShop
  16. Feature: El Cheapo Modules: Mini Digital AC Panel Meters by Jim Rowe
  17. Market Centre
  18. Advertising Index
  19. Notes & Errata: Balanced Input Attenuator for the USB SuperCodec, November-December 2020; Two LED Christmas Stars, November 2020; D1 Mini LCD BackPack, October 2020
  20. Outer Back Cover

This is only a preview of the January 2021 issue of Silicon Chip.

You can view 42 of the 112 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:
  • Automotive Electronics, Part 1 (December 2020)
  • Automotive Electronics, Part 1 (December 2020)
  • Automotive Electronics, Part 2 (January 2021)
  • Automotive Electronics, Part 2 (January 2021)
Items relevant to "AM/FM/SW Single-Chip Digital Radio":
  • AM/FM/SW Single-Chip Digital Radio PCB [CSE200902A] (AUD $10.00)
  • Pulse-type rotary encoder with pushbutton and 18t spline shaft (Component, AUD $3.00)
  • PCB-mount right-angle SMA socket (Component, AUD $3.00)
  • 16x2 Alphanumeric serial (I²C) LCD module with blue backlight (Component, AUD $12.50)
  • Firmware for the AM/FM/SW Single-Chip Digital Radio (Software, Free)
  • AM/FM/SW Single-Chip Digital Radio PCB pattern (PDF download) [CSE200902A] (Free)
  • Cutting diagrams and front panel artwork for the AM/FM/SW Single-Chip Digital Radio (PDF download) (Free)
Items relevant to "MiniHeart: A Miniature Heartbeat Simulator":
  • MiniHeart PCB [01109201] (AUD $5.00)
  • PIC12F617-I/P programmed for the MiniHeart [0110920A.HEX] (Programmed Microcontroller, AUD $10.00)
  • MiniHeart SMD parts (Component, AUD $7.50)
  • Firmware for the MiniHeart [01109201A.hex] (Software, Free)
  • MiniHeart PCB pattern (PDF download) [01109201] (Free)
  • Cutting diagrams and front panel artwork for the MiniHeart (PDF download) (Free)
Items relevant to "The Bass Block Subwoofer":
  • Cutting diagrams for the Bass Block (PDF download) (Panel Artwork, Free)
Items relevant to "Busy Loo Indicator":
  • Busy Loo Indicator PCB [16112201] (AUD $2.50)
  • Busy Loo Indicator PCB pattern (PDF download) [16112201] (Free)
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)

Purchase a printed copy of this issue for $10.00.

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. Nicolas Hannekum, Dip. Elec. Tech. Technical Contributor Duraid Madina, B.Sc, M.Sc, PhD Art Director & Production Manager Ross Tester Reader Services Ann Morris Advertising Enquiries Glyn Smith Phone (02) 9939 3295 Mobile 0431 792 293 glyn<at>siliconchip.com.au Regular Contributors Dave Thompson David Maddison B.App.Sc. (Hons 1), PhD, Grad.Dip.Entr.Innov. Geoff Graham Associate Professor Graham Parslow Ian Batty Cartoonist Brendan Akhurst 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 (12 issues): $105.00 per year, post paid, in Australia. 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 139, Collaroy Beach, NSW 2097. Phone (02) 9939 3295. E-mail: silicon<at>siliconchip.com.au ISSN 1030-2662 Editorial Viewpoint More articles than space – a good problem to have! In the October 2020 issue, I wrote about wanting to publish a range of articles, including some of historical interest and others about the latest technology. This has created a bit of difficulty; while we have a good mixture of different articles, I am struggling to fit all this content into the magazine. You might be wondering why I don’t just print magazines with more pages. That is not as easy as it sounds. For a start, our printing and mailing costs would go up, and given the general economic malaise caused by COVID-19, I am reluctant to increase our expenditures. Note that we have not increased the magazine cover price for more than seven years now – an unprecedented period in the magazine’s history. Another problem is that if I print magazines with more than 112 pages on our current paper stock, they might not fit into the binders that we sell. We also sometimes have problems with the centre sections tearing out in larger magazines. Printing on thinner paper would solve these problems, but result in worse print quality; something I am not keen on. Another option is for me to reduce the number of constructional project articles in some issues. Since taking over the magazine in August 2018, I have stuck faithfully to my predecessor’s guideline of having four such articles in every issue. I think he was right that this strikes a good balance, but perhaps I should make the occasional exception and run three project articles in some months. That would allow us to include more feature articles. I think that makes sense, but I wonder what our readers would think of that. The other option is to raise the cover price (which I am still trying to put off as long as possible) and then use the extra revenue to print larger magazines with more content. That’s assuming we don’t lose too many readers when the price goes up. But I still couldn’t publish large issues too often, or we would run into the over-full binders problem I mentioned above. That makes me think that perhaps dropping to three projects per issue from time to time is the best solution. It also occurred to me that we could run some smaller, simpler projects (which I want to do anyway; again, trying to strike a balance) which will free up more space for feature articles. That’s what we’ve done in this issue, running a clever little four-page project which allows us to have five features plus all our usual columns. It’s a good solution, but we can’t always come up with shorter projects that are worth publishing and building (and what seems like a small project initially can often balloon into a major one!). One of the biggest problems with these simple projects is that often when someone has an idea, we have published something very similar before, and I don’t want to keep reploughing the same ground. If you have strong feelings one way or another about what I have written here, you are welcome to provide some feedback (eg, by sending an e-mail to silicon<at>siliconchip.com.au). That will help guide my decision-making when it comes to figuring out which articles to run in future issues, based on what our readers want. Printing and Distribution: Nicholas Vinen 24-26 Lilian Fowler Pl, Marrickville 2204 2 Silicon Chip Australia’s electronics magazine siliconchip.com.au