Silicon ChipPartShop - November 2019 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Hand-held devices discourage creativity
  4. Feature: A look at SatNav systems: how do they work? by Dr David Maddison
  5. Project: The Super-9: a stereo FM Radio Receiver to build by John Clarke
  6. Feature: Three I-O Expanders to give you more control! by Tim Blythman
  7. Subscriptions
  8. Serviceman's Log: The alarming false alarm system by Dave Thompson
  9. Project: High performance linear power supply – part two by Tim Blythman
  10. Project: Digital Panel Meter/USB Display suits a range of projects by Tim Blythman
  11. PartShop
  12. Feature: Altronics’ battery-powered soldering iron by Nicholas Vinen
  13. Vintage Radio: 1930s “Vogue” radio “restomod” (new electronics for old) by Fred Lever
  14. PCB Order Form
  15. Market Centre
  16. Advertising Index
  17. Notes & Errata: 45V 8A Bench Supply (High Power Linear Bench Supply), October 2019
  18. Outer Back Cover

This is only a preview of the November 2019 issue of Silicon Chip.

You can view 45 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.

Items relevant to "The Super-9: a stereo FM Radio Receiver to build":
  • Super-9 Stereo FM Radio PCB set (AUD $25.00)
  • MC1310P FM Stereo Demodulator IC (DIP-14) (Component, AUD $5.00)
  • 75cm telescopic FM antenna (Component, AUD $7.50)
  • BF992 dual-gate depletion-mode Mosfet (SOT-143B) (Component, AUD $4.00)
  • CA3089E FM IF amplifier and demodulator IC (DIP-16) (Component, AUD $3.00)
  • Super-9 FM Radio PCB pattern (PDF download) [06109181] (Free)
  • Super-9 FM Radio case laser cutting artwork (PDF download) (Panel Artwork, Free)
Articles in this series:
  • The Super-9: a stereo FM Radio Receiver to build (November 2019)
  • The Super-9: a stereo FM Radio Receiver to build (November 2019)
  • The Super-9 FM Radio Receiver, Part 2 (December 2019)
  • A simple 10.7MHz IF Alignment Oscillator (December 2019)
  • The Super-9 FM Radio Receiver, Part 2 (December 2019)
  • A simple 10.7MHz IF Alignment Oscillator (December 2019)
Items relevant to "Three I-O Expanders to give you more control!":
  • PCA9685 16-channel 12-bit PWM module (Component, AUD $6.00)
  • Sample code for Three I/O Expander Modules (Software, 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)
Items relevant to "High performance linear power supply – part two ":
  • 45V/8A Linear Bench Supply PCB [18111181] (AUD $10.00)
  • FJA4313OTU 15A NPN transistor (Source component, AUD $10.00)
  • LM317HVT regulator and INA282AIDR shunt monitor IC for 45V 8A Linear Bench Supply (Component, AUD $15.00)
  • 3mm acrylic heatsink spacer for High-power Linear Bench Supply (PCB, AUD $2.50)
  • High Power Linear Bench Supply PCB pattern (PDF download) [18111181] (Free)
  • High Power Linear Bench Supply panel artwork and drilling/cutting diagrams (PDF download) (Free)
Articles in this series:
  • 45V, 8A Bench Power Supply to build (October 2019)
  • 45V, 8A Bench Power Supply to build (October 2019)
  • Digital Panel Meter/USB Display suits a range of projects (November 2019)
  • High performance linear power supply – part two (November 2019)
  • Digital Panel Meter/USB Display suits a range of projects (November 2019)
  • High performance linear power supply – part two (November 2019)
  • High performance linear power supply – part three (December 2019)
  • High performance linear power supply – part three (December 2019)
Items relevant to "Digital Panel Meter/USB Display suits a range of projects":
  • 45V/8A Linear Bench Supply PCB [18111181] (AUD $10.00)
  • FJA4313OTU 15A NPN transistor (Source component, AUD $10.00)
  • LM317HVT regulator and INA282AIDR shunt monitor IC for 45V 8A Linear Bench Supply (Component, AUD $15.00)
  • 3mm acrylic heatsink spacer for High-power Linear Bench Supply (PCB, AUD $2.50)
  • High Power Linear Bench Supply PCB pattern (PDF download) [18111181] (Free)
  • High Power Linear Bench Supply panel artwork and drilling/cutting diagrams (PDF download) (Free)
  • Digital Panel Meter/USB Display PCB [18111182] (AUD $2.50)
  • PIC16F1459-I/P programmed for the Digital Panel Meter/USB Display [18111182A.HEX] (Programmed Microcontroller, AUD $10.00)
  • 3mm acrylic bezel for the Digital Panel Meter (PCB, AUD $2.50)
  • Software for the Digital Panel Meter/USB Display (Free)
  • Digital Panel Meter/USB Display PCB pattern (PDF download) [18111182] (Free)
Articles in this series:
  • 45V, 8A Bench Power Supply to build (October 2019)
  • 45V, 8A Bench Power Supply to build (October 2019)
  • Digital Panel Meter/USB Display suits a range of projects (November 2019)
  • High performance linear power supply – part two (November 2019)
  • Digital Panel Meter/USB Display suits a range of projects (November 2019)
  • High performance linear power supply – part two (November 2019)
  • High performance linear power supply – part three (December 2019)
  • High performance linear power supply – part three (December 2019)

Purchase a printed copy of this issue for $10.00.

SILICON CHIP .com.au/shop ONLINESHOP Looking for a specialised component to build that latest and greatest Silicon Chip project? Maybe it’s the PCB you’re after? Or a pre-programmed micro? Or some other hard-to-get “bit”? The chances are they are available direct from the Silicon Chip Online Shop. • • • • • PCBs are normally IN STOCK and ready for despatch when that month’s magazine goes on sale (you don’t have to wait for them to be made!). Even if stock runs out (eg, for high demand), in most cases there will be no longer than a two-week wait. One low p&p charge: $10 per order, irregardless of how many items you order! (AUS only; overseas clients – check the website for a postage quote). Our PCBs are beautifully made, very high quality fibreglass boards with pre-tinned tracks, silk screen overlays and where applicable, solder masks. Best of all, subscribers receive a 10% discount on purchases! (Excluding subscription renewals and postage costs) HOW TO ORDER: INTERNET (24 hours, 7 days): log on to our secure website – siliconchip.com.au, click on “SHOP” and follow the links EMAIL – email silicon<at>siliconchip.com.au – Clearly tell us what you want and include your contact and credit card details MAIL – PO Box 139, Collaroy NSW 2097. Clearly tell us what you want and include your contact and credit card details PHONE (9am-5pm AET, Mon-Fri): Call (02) 9939 3295 (INT +612 9939 3295) – have your order ready, including contact and payment details! YES! You can also order or renew your SILICON CHIP subscription via any of these methods as well! 4 4 4 4 PRE-PROGRAMMED MICROS ATtiny816 PIC12F202-E/OT PIC12F617-I/P PIC12F675-E/P PIC12F675-I/P PIC12F675-I/SN PIC16F1455-I/P PIC16F1459-I/P PIC16F88-E/P PIC16F88-I/P PIC16LF88-I/P Micros cost from $10.00 to $20.00 each + $10 p&p per order# $10 MICROS ATtiny816 Development/Breakout Board (Jan19) ATmega328P Ultrabrite LED Driver (with free TC6502P095VCT IC, Sept19) PIC16F1459-I/SO Temperature Switch Mk2 (June18), Recurring Event Reminder (Jul18) PIC16F84A-20I/P Door Alarm (Aug18), Steam Whistle (Sept18) White Noise (Sept/Nov18) Remote Control Dimmer (Feb19), Steering Wheel Control IR Adaptor (Jun19) PIC16F877A-I/P Car Radio Dimmer Adaptor / Voltage Interceptor (Aug19) PIC32MM0256GPM028-I/SS Courtesy LED Light Delay for Cars (Oct14), Fan Speed Controller (Jan18) PIC32MX170F256D-501P/T IR-to-UHF Converter (Jul13), UHF-to-IR Converter (Jul13) PIC32MX170F256B-50I/SP PC Birdies *2 chips – $15 pair* (Aug13), Driveway Monitor Receiver (July15) Hotel Safe Alarm (Jun16), 50A Battery Charger Controller (Nov16) Kelvin the Cricket (Oct17), Triac-based Mains Motor Speed Controller (Mar18) Heater Controller (Apr18), Useless Box IC3 (Dec18) Tiny LED Xmas Tree (Nov19) Microbridge & BackPack V2 / V3 (May17 / Aug19), USB Flexitimer (June18) PIC32MX270F256B-50I/SP Digital Interface Module (Nov18), GPS Speedo/Clock/Volume Control (Jun19) PIC32MX795F512H-80I/PT Five-Way LCD Panel Meter / USB Display (Nov19) Auto Headlight Controller (Oct13), 10A 230V Motor Speed Controller (Feb14) Automotive Sensor Modifier (Dec16) PIC32MX470F512H-I/PT Nicad/NiMH Burp Charger (Mar14), Remote Mains Timer (Nov14) Driveway Monitor Transmitter (July15), Fingerprint Scanner (Nov15) PIC32MX470F512H-120/PT MPPT Lighting Charge Controller (Feb16), 50/60Hz Turntable Driver (May16) PIC32MX470F512L-120/PT Cyclic Pump Timer (Sep16), 60V 40A DC Motor Speed Controller (Jan17) Pool Lap Counter (Mar17), Rapidbrake (Jul17), Deluxe Frequency Switch (May18) dsPIC33FJ128GP802-I/SP Useless Box IC1 (Dec18), Remote-controlled Preamp with Tone Control (Mar19) UHF Repeater (May19), Six Input Audio Selector (TWO VERSIONS, Sept19) Garbage Reminder (Jan13), Bellbird (Dec13), GPS Analog Clock Driver (Feb17) PIC32MZ2048EFH064-I/PT $15 MICROS RF Signal Generator (Jun/Jul19) Four-Channel DC Fan & Pump Controller (Dec18) Programmable Ignition Timing Module (Jun99), Fuel Mixture Display (Sept00) Oscar Noughts And Crosses (Oct07), UV Lightbox Timer (Nov07) 6-Digit GPS Clock (May-Jun09), 16-bit Digital Pot (Jul10), Semtest (Feb-May12) Super Digital Sound Effects (Aug18) 44-pin Micromite Mk2 (Aug14), 4DoF Simulation Seat (Sept19) Micromite Mk2 (Jan15) + 47F, Low Frequency Distortion Analyser (Apr15) Micromite LCD BackPack [either version] (Feb16), GPS Boat Computer (Apr16) Micromite Super Clock (Jul16), Touchscreen Voltage/Current Ref (Oct-Dec16) Micromite LCD BackPack V2 / V3 (May17 / Aug19), Deluxe eFuse (Aug17) Micromite DDS for IF Alignment (Sept17), Tariff Clock (Jul18) GPS-Synched Frequency Reference (Nov18) ASCII Video Terminal (Jul14), USB Mouse & Keyboard Adaptor (Feb19) Maximite (Mar11), miniMaximite (Nov11), Colour Maximite (Sept/Oct12) Touchscreen Audio Recorder (Jun/Jul 14) $20 MICROS Stereo Audio Delay/DSP (Nov13), Stereo Echo/Reverb (Feb 14) Digital Effects Unit (Oct14) Micromite PLUS Explore 64 (Aug 16), Micromite Plus LCD BackPack (Nov16) Micromite PLUS Explore 100 (Sep-Oct16) Digital Audio Signal Generator (Mar-May10), Digital Lighting Cont. (Oct-Dec10) SportSync (May11), Digital Audio Delay (Dec11) Quizzical (Oct11), Ultra-LD Preamp (Nov11), LED Musicolor (Nov12) $30 MICROS DSP Crossover/Equaliser (May19) SPECIALISED COMPONENTS, HARD-TO-GET BITS, ETC SUPER-9 FM RADIO - CA3089E IC, DIP-16 (SC5164) - MC1310P IC, DIP-14 (SC4683) - 110mm telescopic antenna (SC5163) - Neosid M99-073-96 K3 assembly pack (two required) (SC5205) (NOV 19) $3.00 $5.00 $7.50 $6.00 ec. TINY LED XMAS TREE COMPLETE KIT (SC5180) (NOV 19) Includes PCB, micro, CR2032 cell, holder and all other parts. Also includes 12 red, 12 green & 12 white LEDs plus four extra 100W resistors. PCB available in three colours (green, red or white). $15.00 MICROMITE EXPLORE-28 (CAT SC5121) (SEPT 19) Complete kit – includes PCB plus programmed micros and all other onboard parts $30.00 Programmed micro bundle – PIC32MX170F256B-50I/SO + PIC16F1455-I/SL $20.00 MICROMITE LCD BACKPACK V3 (CAT SC5082) (AUG 19) KIT – includes PCB, programmed micros, 3.5in touchscreen LCD, laser-cut UB3 lid, mounting hardware, SMD Mosfets for PWM backlight control and all other mandatory on-board parts Separate/Optional Components: - 3.5-inch TFT LCD touchscreen (Cat SC5062) - DHT22 temp/humidity sensor (Cat SC4150) - BMP180 (Cat SC4343) OR BMP280 (Cat SC4595) temperature/pressure sensor - BME280 temperature/pressure/humidity sensor (Cat SC4608) - DS3231 real-time clock SOIC-16 IC (Cat SC5103) - 23LC1024 1MB RAM (SOIC-8) (Cat SC5104) - AT25SF041 512KB flash (SOIC-8) (Cat SC5105) - 10µF 16V X7R through-hole capacitor (Cat SC5106) GPS SPEEDO/CLOCK/VOLUME CONTROL 1.3-inch 128x64 SSD1306-based blue OLED display module (Cat SC5026) MCP4251-502E/P dual-digital potentiometer (Cat SC5052) (JUN 19) $75.00 $30.00 $7.50 $5.00 $10.00 $3.00 $5.00 $1.50 $2.00 $15.00 $3.00 TOUCH & IR REMOTE CONTROL DIMMER (FEB 19) N-channel Mosfets Q1 & Q2 (SIHB15N60E) and two 4.7MW 3.5kV resistors (Cat SC4861) $20.00 IRD1 (TSOP4136) and fresnel lens (IML0688) (Cat SC4862) $10.00 MOTION SENSING SWITCH (SMD VERSION) (FEB 19) Short form kit (includes PCB and all parts, except for the extension cable) (Cat SC4851) $10.00 SW-18010P vibration sensor (S1) (Cat SC4852) $1.00 P&P – $10 Per order# DAB+/FM/AM RADIO (JAN 19) Main PCB with IC1 pre-soldered Main PCB with IC1 and surrounding components (white box at top right) pre-soldered Explore 100 kit (Cat SC3834; no LCD included) Set of extra SMD parts (contains most SMD parts except for the digital audio output) Extendable VHF whip antenna with SMA connector: 700mm ($15.00) and 465mm ($10.00) PCB-mounting SMA ($2.50), PAL ($5.00) and dual-horizontal RCA ($2.50) socket USB PORT PROTECTOR COMPLETE KIT (CAT SC4574) All parts including the PCB and a length of clear heatshrink tubing (MAY 18) $60.00 $80.00 $69.90 $30.00 $15.00 VARIOUS MODULES & PARTS - SMD 1206 LEDs (Tiny LED Xmas Tree, NOV19): 10 yellow – $0.70 ~ 10 amber – $0.70 ~ 10 blue – $0.70 ~ 10 cyan – $1.00 ~ 1 pink – $0.20 - ISD1820-based voice recorder / playback module (Junk Mail Repeller, AUG19) $4.00 - 23LCV1024-I/P SRAM (DIP) and MCP73831T charger ICs (UHF Repeater, MAY19) $11.50 - MCP1700 3.3V LDO regulator (suitable for USB Mouse & Keyboard Adapator, FEB19) $1.50 - LM4865MX amplifier IC & LF50CV regulator (Tinnitus/Insomnia Killer, NOV18) $10.00 - 2.8-inch touchscreen LCD module with SD card socket (Tide Clock, JUL18) $22.50 - ESP-01 WiFi Module (El Cheapo Modules, Part 15, APR18) $5.00 - MC1496P double-balanced mixer IC (DIP-14) (AM Radio Transmitter, MAR18) $2.50 - WiFi Antennas with U.FL/IPX connectors (Water Tank Level Meter with WiFi, FEB18): 5dBi – $12.50 ~ 2dBi (omnidirectional) – $10.00 - NRF24L01+PA+NA transceiver with SNA connector and antenna (El Cheapo 12, JAN18) $5.00 - WeMos D1 Arduino-compatible boards with WiFi (SEPT17, FEB18): ThingSpeak data logger – $10.00 ~ WiFi Tank Level Meter (ext. antenna socket) – $15.00 - ERA-2SM+ MMIC & ADCH-80A+ choke (6GHz+ Frequency Counter, OCT-DEC17) $15.00 - Geeetech Arduino MP3 shield (Arduino Music Player/Recorder, VS1053, JUL17) $20.00 - 1nF 1% MKP (5mm lead spacing) or ceramic capacitor (Wide-Range LC Meter, JUN18) $2.50 - MAX7219 LED controller boards (El Cheapo Modules, Part 7, JUN17): 8x8 red SMD/DIP matrix display – $5.00 ~ red 8-digit 7-segment display – $7.50 - AD9833 DDS module (with gain control) (for Micromite DDS, APR17) $25.00 - AD9833 DDS module (no gain control) (El Cheapo Modules, Part 6, APR17) $15.00 - CP2102 USB-UART bridge $5.00 - microSD card adaptor (El Cheapo Modules, Part 3, JAN17) $2.50 - DS3231 real-time clock module with mounting spacers and screws (El Cheapo, OCT16) $5.00 THESE ARE ONLY THE MOST RECENT MICROS AND SPECIALISED COMPONENTS. FOR THE FULL LIST, SEE www.siliconchip.com.au/shop *Prices valid for month of magazine issue only. All prices in Australian dollars and include GST where applicable. # P&P prices are within Australia. O’seas? Place an order on our website for an accurate quote. 11/19