Silicon ChipContents - July 2022 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Low-cost UPSes are not worth the risk
  4. Feature: IC Fabrication, Part 2 by Dr David Maddison
  5. Project: Multimeter Calibrator & Checker by Tim Blythman
  6. Review: Anycubic Photon Mono 3D printer by Tim Blythman
  7. Project: VGA PicoMite by Geoff Graham
  8. Project: 0-110dB RF Attenuator by Charles Kosina
  9. Review: Oatley Solar Charge Controller by John Clarke
  10. Project: Secure Remote Mains Switch, Part 1 by John Clarke
  11. Product Showcase
  12. Feature: PAS CO2 Air Quality Sensor by Jim Rowe
  13. Serviceman's Log: Trail camera fun by Dave Thompson
  14. Subscriptions
  15. Vintage Radio: Astor CJ-12 car radio by Dr Hugo Holden
  16. PartShop
  17. Market Centre
  18. Advertising Index
  19. Notes & Errata: MOS Air Quality Sensors, June 2022; Railway Semaphore Signal, April 2022; High Power DC Motor Speed Controller, January & February 2017
  20. Outer Back Cover

This is only a preview of the July 2022 issue of Silicon Chip.

You can view 44 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:
  • IC Fabrication, Part 1 (June 2022)
  • IC Fabrication, Part 2 (July 2022)
  • IC Fabrication, Part 3 (August 2022)
Items relevant to "Multimeter Calibrator & Checker":
  • Multimeter Checker & Calibrator PCB [04107221] (AUD $5.00)
  • PIC16F1459-I/SO programmed for the Multimeter Calibrator/Checker (0410722B.HEX) (Programmed Microcontroller, AUD $10.00)
  • Complete kit for the Multimeter Checker (Component, AUD $45.00)
  • Firmware and source code for the Multimeter Checker/Calibrator [0410722A/B] (Software, Free)
  • Multimeter Checker & Calibrator PCB pattern (PDF download) [04107221] (Free)
Items relevant to "VGA PicoMite":
  • VGA PicoMite PCB [07107221] (AUD $5.00)
  • VGA PicoMite short-form kit (Component, AUD $37.50)
  • VGA PicoMite short-form kit with case (Component, AUD $55.00)
  • Firmware and user manual for the VGA PicoMite (Software, Free)
  • VGA PicoMite PCB pattern (PDF download) [07107221] (Free)
  • Cutting/drilling guides for the VGA PicoMite front & rear panels (Panel Artwork, Free)
Items relevant to "0-110dB RF Attenuator":
  • 0-110dB RF Attenuator PCB [CSE211003] (AUD $5.00)
  • ATmega328P programmed with the firmware for the 110dB RF Attenuator [CSE211003.HEX] (Programmed Microcontroller, AUD $10.00)
  • 0.96in cyan OLED with SSD1306 controller (Component, AUD $10.00)
  • Pulse-type rotary encoder with pushbutton and 18t spline shaft (Component, AUD $3.00)
  • Short-form kit for the 0-110dB RF Attenuator (Component, AUD $75.00)
  • Firmware and BASIC source code for the 0-110dB RF Attenuator [Attenuator 3] (Software, Free)
  • 0-110dB RF Attenuator PCB pattern (PDF download) [CSE211003A] (Free)
  • Front panel label and drilling diagram for the 110dB RF Attenuator (Panel Artwork, Free)
Items relevant to "Secure Remote Mains Switch, Part 1":
  • Secure Remote Mains Switch receiver PCB [10109211] (AUD $7.50)
  • Secure Remote Mains Switch transmitter PCB [10109212] (AUD $2.50)
  • PIC16F1459-I/P programmed for the Secure Remote Mains Switch receiver (1010921R.HEX) (Programmed Microcontroller, AUD $10.00)
  • PIC16LF15323-I/SL programmed for the Secure Remote Mains Switch transmitter (1010921A.HEX) (Programmed Microcontroller, AUD $10.00)
  • Secure Remote Switch receiver almost complete kit (Component, AUD $75.00)
  • Firmware and ASM source code for the Secure Remote Mains Switch [1010921A/R] (Software, Free)
  • Secure Remote Mains Switch PCB patterns (PDF download) [10109211/2] (Free)
  • Front panel label and drilling diagrams for the Secure Remote Mains Switch (Panel Artwork, Free)
Articles in this series:
  • Secure Remote Mains Switch, Part 1 (July 2022)
  • Secure Remote Mains Switch, Part 2 (August 2022)
Articles in this series:
  • El Cheapo Modules From Asia - Part 1 (October 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 4 (February 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 7: LED Matrix displays (June 2017)
  • El Cheapo Modules: Li-ion & LiPo Chargers (August 2017)
  • El Cheapo modules Part 9: AD9850 DDS module (September 2017)
  • El Cheapo Modules Part 10: GPS receivers (October 2017)
  • El Cheapo Modules 11: Pressure/Temperature Sensors (December 2017)
  • El Cheapo Modules 12: 2.4GHz Wireless Data Modules (January 2018)
  • El Cheapo Modules 13: sensing motion and moisture (February 2018)
  • El Cheapo Modules 14: Logarithmic RF Detector (March 2018)
  • El Cheapo Modules 16: 35-4400MHz frequency generator (May 2018)
  • El Cheapo Modules 17: 4GHz digital attenuator (June 2018)
  • El Cheapo: 500MHz frequency counter and preamp (July 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 21: stamp-sized audio player (December 2018)
  • El Cheapo Modules 22: Stepper Motor Drivers (February 2019)
  • El Cheapo Modules 23: Galvanic Skin Response (March 2019)
  • El Cheapo Modules: Class D amplifier modules (May 2019)
  • El Cheapo Modules: Long Range (LoRa) Transceivers (June 2019)
  • El Cheapo Modules: AD584 Precision Voltage References (July 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: 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, Part 2 (June 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: LCR-T4 Digital Multi-Tester (February 2021)
  • El Cheapo Modules: USB-PD chargers (July 2021)
  • El Cheapo Modules: USB-PD Triggers (August 2021)
  • El Cheapo Modules: 3.8GHz Digital Attenuator (October 2021)
  • El Cheapo Modules: 6GHz Digital Attenuator (November 2021)
  • El Cheapo Modules: 35MHz-4.4GHz Signal Generator (December 2021)
  • El Cheapo Modules: LTDZ Spectrum Analyser (January 2022)
  • Low-noise HF-UHF Amplifiers (February 2022)
  • A Gesture Recognition Module (March 2022)
  • Air Quality Sensors (May 2022)
  • MOS Air Quality Sensors (June 2022)
  • PAS CO2 Air Quality Sensor (July 2022)
  • Particulate Matter (PM) Sensors (November 2022)
  • Heart Rate Sensor Module (February 2023)
  • UVM-30A UV Light Sensor (May 2023)
  • VL6180X Rangefinding Module (July 2023)
  • pH Meter Module (September 2023)
  • 1.3in Monochrome OLED Display (October 2023)
  • 16-bit precision 4-input ADC (November 2023)
  • 1-24V USB Power Supply (October 2024)
  • 0.91-inch OLED Screen (November 2024)

Purchase a printed copy of this issue for $11.50.
Contents Vol.35, No.7 July 2022 14 IC Fabrication, Part 2 Shrinking node sizes and cutting-edge EUV (extreme ultraviolet) lithography machines are just a few of the topics covered in the next instalment of our series on how integrated circuits are made. By Dr David Maddison Semiconductors 41 Anycubic Photon Mono 3D printer This 3D printer from Anycubic is an affordable resin-based printer. The resin is cured by a UV light that passes through a 2K resolution LCD screen (4K in the new version). Resin is available in multiple colours and brands. By Tim Blythman & Nicolas Hannekum 3D printer review 68 Oatley Solar Charge Controller Oatley Electronics have two new solar charging kits which are suitable for charging 12V and 24V lead-acid batteries. Included with the controllers are a single 16W solar panel or two 16W panels respectively. By John Clarke Solar device review 83 PAS CO2 Air Quality Sensor In this article we cover the Infineon XENSIV PAS air quality sensor module. PAS (photoacoustic spectroscopy) sensors work by determining how gas particles absorb specific wavelengths of infrared light. By Jim Rowe Low-cost electronic modules 31 Multimeter Calibrator & Checker Our Multimeter Checker can verify how accurate your multimeters are. It can also be used to calibrate meters and adjust for drift. It can calibrate AC and DC voltage, direct current, frequency and resistance ranges. By Tim Blythman Test equipment project 52 VGA PicoMite With just a Raspberry Pi Pico and minimal extra components, you can build this amazingly capable BASIC computer. It has a 640 x 480 pixel VGA output, PS/2 keyboard input and uses an SD card for storage. By Geoff Graham & Peter Mather Raspberry Pi project 62 0-110dB RF Attenuator This 0-110dB RF Attenuator is designed to be used with the AM/FM Signal Generator from the May 2022 issue. Still, you can use it with just about any signal generator to provide output level adjustments in 1dB steps. By Charles Kosina Test equipment project 72 Secure Remote Mains Switch, Pt1 Our Remote Mains Switch has up to 68m line-of-sight range and can handle one to 16 transmitters per receiver. It can switch up to 30A at 250V AC, includes an adjustable timer and uses a secure UHF rolling code. By John Clarke Mains power project Multimeter -Checker -Calibrator Page 31 Page 62 110dB RF Attenuator Page 72 Secure Remote MAINS SWITCH 2 Editorial Viewpoint 4 Mailbag 78 Circuit Notebook 82 Product Showcase 86 Serviceman’s Log 93 Subscriptions 94 Vintage Radio 1. Switching on external devices via a TV 2. Variable L-pad speaker volume control 3. Transmitting in the FM broadcast band 4. Plugpack voltage and current monitor Astor CJ-12 car radio by Dr Hugo Holden 105 Ask Silicon Chip 106 Online Shop 111 Market Centre 112 Advertising Index 112 Notes & Errata