Silicon ChipLFSR Random Number Generator Using Logic ICs - November 2020 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Subscriptions: PE Subscription
  4. Subscriptions: PicoLog Cloud
  5. Back Issues: PICOLOG
  6. Publisher's Letter
  7. Feature: The Fox Report by Barry Fox
  8. Feature: Techno Talk by Mark Nelson
  9. Feature: Net Work by Alan Winstanley
  10. Project: The Christmas Tree that grows! by Tim Blythman
  11. Back Issues: LFSR Random Number Generator Using Logic ICs by Tim Blythman
  12. Project: USB Digital and SPI Interface Board by Tim Blythman
  13. Project: HIGH-POWER 45V/8A VARIABLE LINEAR SUPPLY by Tim Blythman
  14. Feature: P955H PIC Training Circuit by Peter Brunning
  15. Project: Five-way LCD Panel Meter / USB Display by Tim Blythman
  16. Feature: Pedal Power Station! by Julian Edgar
  17. Feature: Make it with Micromite by Phil Boyce
  18. Feature: Circuit Surgery by Ian Bell
  19. Feature: Practically Speaking by Jake Rothman
  20. Feature: Max’s Cool Beans by Max the Magnificent
  21. Feature: AUDIO OUT by Jake Rothman
  22. PCB Order Form
  23. Advertising Index

This is only a preview of the November 2020 issue of Practical Electronics.

You can view 0 of the 72 pages in the full issue.

Articles in this series:
  • (November 2020)
  • (November 2020)
  • Techno Talk (December 2020)
  • Techno Talk (December 2020)
  • Techno Talk (January 2021)
  • Techno Talk (January 2021)
  • Techno Talk (February 2021)
  • Techno Talk (February 2021)
  • Techno Talk (March 2021)
  • Techno Talk (March 2021)
  • Techno Talk (April 2021)
  • Techno Talk (April 2021)
  • Techno Talk (May 2021)
  • Techno Talk (May 2021)
  • Techno Talk (June 2021)
  • Techno Talk (June 2021)
  • Techno Talk (July 2021)
  • Techno Talk (July 2021)
  • Techno Talk (August 2021)
  • Techno Talk (August 2021)
  • Techno Talk (September 2021)
  • Techno Talk (September 2021)
  • Techno Talk (October 2021)
  • Techno Talk (October 2021)
  • Techno Talk (November 2021)
  • Techno Talk (November 2021)
  • Techno Talk (December 2021)
  • Techno Talk (December 2021)
  • Communing with nature (January 2022)
  • Communing with nature (January 2022)
  • Should we be worried? (February 2022)
  • Should we be worried? (February 2022)
  • How resilient is your lifeline? (March 2022)
  • How resilient is your lifeline? (March 2022)
  • Go eco, get ethical! (April 2022)
  • Go eco, get ethical! (April 2022)
  • From nano to bio (May 2022)
  • From nano to bio (May 2022)
  • Positivity follows the gloom (June 2022)
  • Positivity follows the gloom (June 2022)
  • Mixed menu (July 2022)
  • Mixed menu (July 2022)
  • Time for a total rethink? (August 2022)
  • Time for a total rethink? (August 2022)
  • What’s in a name? (September 2022)
  • What’s in a name? (September 2022)
  • Forget leaves on the line! (October 2022)
  • Forget leaves on the line! (October 2022)
  • Giant Boost for Batteries (December 2022)
  • Giant Boost for Batteries (December 2022)
  • Raudive Voices Revisited (January 2023)
  • Raudive Voices Revisited (January 2023)
  • A thousand words (February 2023)
  • A thousand words (February 2023)
  • It’s handover time (March 2023)
  • It’s handover time (March 2023)
  • AI, Robots, Horticulture and Agriculture (April 2023)
  • AI, Robots, Horticulture and Agriculture (April 2023)
  • Prophecy can be perplexing (May 2023)
  • Prophecy can be perplexing (May 2023)
  • Technology comes in different shapes and sizes (June 2023)
  • Technology comes in different shapes and sizes (June 2023)
  • AI and robots – what could possibly go wrong? (July 2023)
  • AI and robots – what could possibly go wrong? (July 2023)
  • How long until we’re all out of work? (August 2023)
  • How long until we’re all out of work? (August 2023)
  • We both have truths, are mine the same as yours? (September 2023)
  • We both have truths, are mine the same as yours? (September 2023)
  • Holy Spheres, Batman! (October 2023)
  • Holy Spheres, Batman! (October 2023)
  • Where’s my pneumatic car? (November 2023)
  • Where’s my pneumatic car? (November 2023)
  • Good grief! (December 2023)
  • Good grief! (December 2023)
  • Cheeky chiplets (January 2024)
  • Cheeky chiplets (January 2024)
  • Cheeky chiplets (February 2024)
  • Cheeky chiplets (February 2024)
  • The Wibbly-Wobbly World of Quantum (March 2024)
  • The Wibbly-Wobbly World of Quantum (March 2024)
  • Techno Talk - Wait! What? Really? (April 2024)
  • Techno Talk - Wait! What? Really? (April 2024)
  • Techno Talk - One step closer to a dystopian abyss? (May 2024)
  • Techno Talk - One step closer to a dystopian abyss? (May 2024)
  • Techno Talk - Program that! (June 2024)
  • Techno Talk - Program that! (June 2024)
  • Techno Talk (July 2024)
  • Techno Talk (July 2024)
  • Techno Talk - That makes so much sense! (August 2024)
  • Techno Talk - That makes so much sense! (August 2024)
  • Techno Talk - I don’t want to be a Norbert... (September 2024)
  • Techno Talk - I don’t want to be a Norbert... (September 2024)
  • Techno Talk - Sticking the landing (October 2024)
  • Techno Talk - Sticking the landing (October 2024)
  • Techno Talk (November 2024)
  • Techno Talk (November 2024)
  • Techno Talk (December 2024)
  • Techno Talk (December 2024)
  • Techno Talk (January 2025)
  • Techno Talk (January 2025)
  • Techno Talk (February 2025)
  • Techno Talk (February 2025)
  • Techno Talk (March 2025)
  • Techno Talk (March 2025)
  • Techno Talk (April 2025)
  • Techno Talk (April 2025)
  • Techno Talk (May 2025)
  • Techno Talk (May 2025)
  • Techno Talk (June 2025)
  • Techno Talk (June 2025)
BACK ISSUES Electronic Building Blocks Micromite Fun with LEDs Fonts, files and temperature Choosing and identifying stepper motors WIN! Tinnitus & Insomnia Killer Electronic compasses Microchip SAM R30M Xplained Pro Evaluation Kit WIN! Build your own retro Colour Maximite Computer! GPS-synced Frequency Reference PLUS! Net Work – Surveillance tech Techno Talk – VT100 Emulator Audio Out – Speaker building www.epemag.com Nov 2019 £4.99 WIN! 11 $50 of PCB prototyping from PCBWay <at>practicalelec 9 772632 573016 practicalelectronics Audio Out Cable and connectors Wavecor crossover Electronic Building Blocks Circuit Surgery Micromite Interfacing different logic levels Reusing batteries Build an LED Mood Light! Low-cost digital audio player Building your Audio DSP Maximite: graphics, programs and hardware control WIN! Microchip MCP3564 ADC Evaluation Board for PIC32 MCUs Bipolar stepper motor driver modules USB Keyboard and Mouse Adaptor PLUS! Feb 2020 £4.99 Practically Speaking – PCB digital microscope Net Work – Launch of the new PE shop Techno Talk – Novel battery technology www.epemag.com <at>practicalelec 02 9 772632 573016 practicalelectronics Micromite Serial data communication Microchip 1 Msps SAR ADC Evaluation Kit WIN! Automotive Fan/ Pump Controller – N NE E EW W P E D NA – ES M IG E N ! Practical PROJECTS • Audio DSP – Electronics Part 1 • Isolated Serial Link • Four-channel High-current DC Fan and Pump Controller – Part 2 • Colour Maximite Computer – Part 3 FEATURES • The Fox Report • Techno Talk • Net Work • PIC n’ Mix • Using Stepper Motors • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans • Electronic Building Blocks The UK’s premier electronics and computing maker magazine Audio Out LS3/5a crossover Awesome Audio DSP Audio Out Amazing analogue noise sound effects PIC n’ Mix Circuit Surgery Audio Spectrum Analyser Impedance measurement Arduino/XOD Programmable flexible timer WIN! Visual programming for Arduino with XOD Microchip MPLAB ICD 4 In-Circuit Debugger WIN! Superb bridge-mode amplifier Build a Micromite programmable robot buggy Using FPGAs with iCEstick Remote control for ultra-low-distortion Preamplifier 433MHz Repeater PLUS! May 2020 £4.99 Net Work – Live on-demand digital terrestrial TV Max’s Cool Beans – Even more flashing LEDs! Techno Talk – Is IoT risky? www.epemag.com <at>practicalelec 05 9 772632 573016 practicalelectronics AUGUST 2020 – N NE E EW W P E D NA – ES M IG E N ! PROJECTS • Micromite LCD Practical Electronics BackPack V3 • Steering Wheel Audio Button to Infrared Adaptor • Junk Mail Repeller • Class-D Stereo Plus Subwoofer Amplifier FEATURES • The Fox Report • Techno Talk • Net Work • Circuit Surgery • Audio Out • Make it with Micromite • Practically Speaking • Max’s Cool Beans • Electronic Building Blocks The UK’s premier electronics and computing maker magazine Audio Out Super low-noise power supply for your theremin Practically Speaking Getting to grips with surface-mount ICs Micromite LCD BackPack V3 WIN! Microchip J-32 Debug Probe WIN! Bargain Class-D Amplifier Circuit Surgery LTspice – Using behavioural sources Don’t miss our Super Summer Sale! Steering Wheel Audio Button Adaptor Ping-pong ball lighting! PLUS! IR control of Robot Buggy Low-noise theremin PSU Net Work – Yubico’s latest Security Key Techno Talk – The benefits of hindsight Electronic Building Blocks – Battery capacity tester www.electronpublishing.com <at>practicalelec Aug 2020 £4.99 08 9 772632 573016 practicalelectronics Isolated Serial Link Controlling an 8×8 LED matrix Dec 2019 £4.99 12 Net Work – Freeview frustration Techno Talk – The great landline switchover www.epemag.com <at>practicalelec 9 772632 573016 practicalelectronics Using your Maximite PLUS! Jan 2020 £4.99 PIC n’ Mix – Temperature and humidity sensing Net Work – The growth of smart metering Techno Talk – Energy from the heavens: at night! www.epemag.com MARCH 2020 <at>practicalelec 01 9 772632 573016 practicalelectronics APRIL 2020 Practical PROJECTS • Diode Curve Electronics Plotter • Audio DSP – Part 3 • Steam Train Whistle / Diesel Horn Sound Generator • Using Cheap Asian Electronic Modules – Part 22 FEATURES • The Fox Report • Techno Talk • Net Work • PIC n’ Mix • Circuit Surgery • Audio Out • Make it with Micromite • Visual programming with XOD • Max’s Cool Beans • Electronic Building Blocks The UK’s premier electronics and computing maker magazine Audio Out Wavecor crossover Electronic Building Blocks Circuit Surgery Micromite Strain gauge circuit revisited Loud voice alarm Build this superb diode curve plotter Adding Bluetooth functionality Exciting new series! Visual programming for Arduino with XOD WIN! Microchip SAM D20 Xplained Pro Evaluation Kit Bluetooth – create wireless projects for your Micromite Awesome Audio DSP Toot toot! Steam whistle generator PLUS! PIC n’ Mix – Audio Spectrum Analyser design update Net Work – Two-factor authentication and SSDs Techno Talk – Boom time for battery traction www.epemag.com <at>practicalelec Mar 2020 £4.99 03 9 772632 573016 practicalelectronics PROJECTS • Ultra-lowdistortion Preamplifier with Tone Controls – Part 1 • iCEstick – Part 1 • Flip-dot Display FEATURES • Techno Talk • Net Work • Practically Speaking • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans • Visual programming with XOD Practical Electronics The UK’s premier electronics and computing maker magazine Audio Out Analogue noise generator Practically Speaking Circuit Surgery Visual programming for Arduino with XOD WIN! Microchip Curiosity PIC32MZ EF Dev Board 2.0 Introduction to FPGAs with the low-cost iCEstick Adding colour touchscreens Fascinating display system you can build WIN! Touchscreen and Micromite Remote control for the ultra-low-distortion Preamplifier PLUS! Net Work – Cookies, data trails and security options Max’s Cool Beans – Best-ever flashing LEDs! Techno Talk – A spot of nostalgia www.epemag.com Micromite Problems with SPICE simulations Intro to SMD <at>practicalelec Apr 2020 £4.99 04 9 772632 573016 practicalelectronics JULY 2020 SEPTEMBER 2020 PROJECTS • Ultrabrite LED Pushbike Light • The Micromite Explore-28 • Three Stepper Motor Drivers • Cheap and easy compact speaker enclosures FEATURES • Techno Talk • Net Work • Circuit Surgery • Audio Out • PIC n’ Mix • Make it with Micromite • Max’s Cool Beans Practical Electronics The UK’s premier electronics and computing maker magazine Audio Out Play with style – the all analogue PE Mini-organ Practically Speaking Getting to grips with surface-mount technology Circuit Surgery Understanding Class-D, G and H amplifiers WIN! Microchip PIC-IoT WA Development Board WIN! Practical PROJECTS • Speech Electronics Synthesiser with the Raspberry Pi Zero • AD584 Precision Voltage References • AM/FM/CW Scanning HF/VHF RF Signal Generator – Part 2 • High-current Solid-state 12V Battery Isolator FEATURES • Techno Talk • Net Work • PIC n’ Mix • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans • Electronic Building Blocks – N NE E EW W P E D NA – ES M IG E N ! PROJECTS • AM/FM/CW Scanning HF/VHF RF Signal Generator – Part 1 • Low-cost 3.5-inch touchscreen for the Arduino or Micromite • Ultralow-distortion Preamplifier with Tone Controls – Part 3 FEATURES • Techno Talk • Net Work • Practically Speaking • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans The UK’s premier electronics and computing maker magazine Audio Out PIC n’ Mix Building the fabulous analogue PE Mini-organ Circuit Surgery New series: Introducing the PIC18 family LTspice sources and waveforms WIN! Microchip PIC-BLE Development Board Build the PE Mini-organ! WIN! Animated eyes for your Micromite Robot Buggy Six-input Stereo Audio Selector Musical fun with the PE Mini-organ! Assemble your Micromite Robot Buggy High-current Solid-state 12V Battery Isolator Speech Synthesiser with the Raspberry Pi Zero PLUS! Using low-cost Arduino 3.5-inch touchscreens PLUS! Net Work – Apps, security and welcome diversions Max’s Cool Beans – Home working and flashing LEDs! Techno Talk – Beyond back-of-the-envelope design www.epemag.com BACK ISSUES – ONLY £5.95 We can supply back issues of PE/EPE by post. We stock magazines back to 2006, except for the following: 2006 Jan, Feb, Mar, Apr, May, Jul 2007 Jun, Jul, Aug 2008 Aug, Nov, Dec 2009 Jan, Mar, Apr 2010 May, Jun, Jul, Aug, Oct, Nov 2011 Jan 2014 Jan 2018 Jan, Nov, Dec 2019 Jan, Feb, May, June Issues from Jan 1999 are available. If we do not have a a paper version of a particular issue, then a PDF can be supplied via download or on disc. See website for details and prices: www.electronpublishing.com/product-category/pe-back-issues Please make sure all components are still available before commencing any project from a back-dated issue. Microchip MPLAB PICkit 4 In-Circuit Debugger Bipolar stepper motor drivers $50 of PCB prototyping from PCBWay Building the Colour Maximite Computer PLUS! £5.95 per issue for UK incl p&p  £9.95 Europe Air Mail  £11.95 ROW Air Mail Micromite Serial data communication WIN! Stepper motor basic drivers – N NE E EW W P E D NA – ES M IG E N ! – N NE E EW W P E D NA – ES M IG E N ! Practical Electronics Circuit Surgery Understanding Logic levels Tiny PIC circuits JUNE 2020 The UK’s premier electronics and computing maker magazine Electronic Building Blocks Digital mains meter WIN! WIN! Useless Box! Clever and fun! MAY 2020 PROJECTS • 433MHz Wireless Data Range Extender • Bridgemode Audio Amplifier Adaptor • iCEstick – Part 2 • Ultra-lowdistortion Preamplifier with Tone Controls – Part 2 FEATURES • The Fox Report • Techno Talk • Net Work • PIC n’ Mix • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans • Visual programming with XOD Circuit Surgery Understanding Active loads – N NE E EW W P E D NA – ES M IG E N ! – N NE E EW W P E D NA – ES M IG E N ! The UK’s premier electronics and computing maker magazine Audio Out Electronic Building Blocks Budget data logger Extremely Sensitive Magnetometer FEBRUARY 2020 PROJECTS • Audio DSP – Part Practical Electronics 2 • Motion-Triggered 12V Switch • USB Keyboard and Mouse Adaptor for Micros • Using Cheap Asian Electronic Modules – Part 21 • Colour Maximite Computer – Part 4 FEATURES • The Fox Report • Techno Talk • Net Work • Practically Speaking • Using Stepper Motors • Circuit Surgery • Audio Out • Make it with Micromite • Max’s Cool Beans • Electronic Building Blocks Practical Electronics The UK’s premier electronics and computing maker magazine <at>practicalelec Jun 2020 £4.99 06 9 772632 573016 practicalelectronics The UK’s premier electronics and computing maker magazine Flowerpot speakers! A low-cost route to high-quality Hi-Fi PIC n’ Mix Software tools for the PIC18F Ultrabrite LED bike light Circuit Surgery Understanding Differential amplifiers Don’t miss our Super Summer Sale! WIN! Microchip Explorer 16/32 Development Kit WIN! Meet the Micromite Explore-28 Mastering stepper motor drivers Robot Buggy Ultrasound sensing! OCTOBER 2020 PROJECTS • High-Power 45V/8A Variable Linear Supply – Part 1 • Precision ‘Audio’ Signal Amplifier • Arduino-based Digital Audio Millivoltmeter • Pedal Power Station! – Part 1 FEATURES • The Fox Report • Techno Talk • Net Work • Circuit Surgery • Audio Out • Practically Speaking • Make it with Micromite • Max’s Cool Beans <at>practicalelec Jul 2020 £4.99 07 9 772632 573016 practicalelectronics Practical Electronics The UK’s premier electronics and computing maker magazine Pedal Power Station! Build your own exercise bike generator Make it with Micromite GPS modules with UART communication Arduino-based Digital Audio Millivoltmeter WIN! Microchip MPLAB PICkit 4 In-Circuit Debugger WIN! Circuit Surgery Rail-to-rail and singlesupply op amps Don’t miss our Super Summer Sale! High-power 45V/8A Variable Linear Supply Introducing the K40 laser cutter/engraver Building the Low-noise theremin PSU PLUS! Cool Beans – Even cooler ping-pong ball lights! Net Work – IP security cameras Techno Talk – The perils of an enquiring mind... www.electronpublishing.com Net Work – Two-Factor Authentication security Max’s Cool Beans – Nifty NeoPixels Techno Talk – Silly stuff for the silly season Electronic Building Blocks – Modifying solar lights www.epemag.com Practical Electronics – N NE E EW W P E D NA – ES M IG E N ! Opto-isolated Mains Relay Circuit Surgery Differential amplifiers JANUARY 2020 – N NE E EW W P E D NA – ES M IG E N ! The UK’s premier electronics and computing maker magazine PIC n’ Mix Connecting I2C LCD displays DECEMBER 2019 PROJECTS • Extremely Sensitive Magnetometer • Useless Box! • Four-channel High-current DC Fan and Pump Controller • Colour Maximite Computer – Part 2 FEATURES • The Fox Report • Techno Talk • Net Work • Circuit Surgery • Using Stepper Motors • Audio Out • Make it with Micromite • Max’s Cool Beans • Electronic Building Blocks – N NE E EW W P E D NA – ES M IG E N ! – N NE E EW W P E D NA – ES M IG E N ! NOVEMBER 2019 PROJECTS • Programmable Practical Electronics GPS-synced Frequency Reference – Part 2 • Cheap Asian Electronic Modules – Part 20 • Tinnitus & Insomnia Killer • Colour Maximite Computer – Part 1 FEATURES • Techno Talk • Net Work • Using Stepper Motors • Circuit Surgery • PIC n’ Mix • Audio Out • Make it with Micromite • Max’s Cool Beans • Electronic Building Blocks – N NE E EW W P E D NA – ES M IG E N ! Practical Electronics <at>practicalelec Sep 2020 £4.99 09 9 772632 573016 practicalelectronics Precision ‘Audio’ Signal Amplifier PLUS! Techno Talk – 5G craziness! Net Work – Cybercriminals – honour among thieves? Cool Beans – Subtle fade up/down with NeoPixels www.electronpublishing.com <at>practicalelec Oct 2020 £4.99 10 9 772632 573016 practicalelectronics ORDER FORM – BACK ISSUES Back issues required (month / year) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Email . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I enclose cheque/PO to the value of £ . . . . . . . . . . . . Please charge my Visa/Mastercard £............... Card No . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valid From . . . . . . . . . . . . . Card Expiry Date . . . . . . . . . . . . . Card Security Code . . . . . . . . . . (Last three digits on or under the signature strip) SEND TO: Practical Electronics, Wimborne Publishing Ltd 113 Lynwood Drive, Merley, Wimborne, Dorset BH21 1UU. Tel: 01202 880299 Email: stewart.kearn<at>wimborne.co.uk On-line Shop: www.electronpublishing.com Payments must be in £ sterling – cheque drawn on a UK bank. ALl items are normally posted within seven days of receipt of order. Send a copy of this form, or order by letter / online if you do not wish to cut your issue.