Silicon ChipThe Fox Report - August 2026 SILICON CHIP
  1. Contents
  2. Publisher's Letter: Europe needs a proactive policy on local tech & manufacturing
  3. Subscriptions: ETI Bundles
  4. Feature: How USB-C Power Delivery Works by Andrew Levido
  5. Project: USB-C Power Monitor, part one by Tim Blythman
  6. Feature: Teach-In 2026 by Mike Tooley
  7. Project: The RP2350B Computer by Geoff Graham & Peter Mather
  8. Feature: The Fox Report
  9. Feature: Circuit Surgery by Ian Bell
  10. Feature: Max’s Cool Beans by Max the Magnificent
  11. Feature: Power Electronics Part 5: power factor correction & EMI fifiltering by Andrew Levido
  12. Back Issues
  13. Feature: Audio Out by Jake Rothman
  14. Feature: Techno Talk by Max the Magnificent
  15. PartShop
  16. Market Centre
  17. Advertising Index
  18. Back Issues

This is only a preview of the August 2026 issue of Practical Electronics.

You can view 0 of the 80 pages in the full issue.

Items relevant to "USB-C Power Monitor, part one":
  • USB-C Power Monitor PCB set [04102251-3] (AUD $7.50)
  • PIC16F18146-I/SO programmed for the USB-C Power Monitor [0410225A.HEX] (Programmed Microcontroller, AUD $10.00)
  • 0.91-inch white OLED with 4-pin I²C interface (Component, AUD $7.50)
  • USB-C Power Monitor short-form kit (Component, AUD $60.00)
  • Firmware for the USB-C Power Monitor [0410225A.HEX] (Software, Free)
  • USB-C Power Monitor PCB patterns [04102251-2] (Free)
Articles in this series:
  • USB-C Power Monitor, part one (August 2026)
  • USB-C Power Monitor, part one (September 2026)
  • USB-C Power Monitor, part one (October 2026)
  • USB-C Power Monitor, part one (November 2026)
Articles in this series:
  • Teach-In 12.1 (November 2025)
  • Teach-In 2026 (December 2025)
  • Teach-In 2026 (January 2026)
  • Teach-In 2026 (February 2026)
  • Teach-In 2026 (March 2026)
  • Teach-In 2026 (April 2026)
  • Teach-In 2026 (June 2026)
  • Teach-In 2026 (July 2026)
  • Teach-In 2026 (August 2026)
  • Teach-In 2026 (September 2026)
  • Teach-In 2026 (October 2026)
  • Teach-In 2026 (November 2026)
Articles in this series:
  • Circuit Surgery (April 2024)
  • STEWART OF READING (April 2024)
  • Circuit Surgery (May 2024)
  • Circuit Surgery (June 2024)
  • Circuit Surgery (July 2024)
  • Circuit Surgery (August 2024)
  • Circuit Surgery (September 2024)
  • Circuit Surgery (October 2024)
  • Circuit Surgery (November 2024)
  • Circuit Surgery (December 2024)
  • Circuit Surgery (January 2025)
  • Circuit Surgery (February 2025)
  • Circuit Surgery (March 2025)
  • Circuit Surgery (April 2025)
  • Circuit Surgery (May 2025)
  • Circuit Surgery (June 2025)
  • Circuit Surgery (July 2025)
  • Circuit Surgery (August 2025)
  • Circuit Surgery (September 2025)
  • Circuit Surgery (October 2025)
  • Circuit Surgery (November 2025)
  • Circuit Surgery (December 2025)
  • Circuit Surgery (January 2026)
  • Circuit Surgery (February 2026)
  • Circuit Surgery (March 2026)
  • Circuit Surgery (April 2026)
  • AUDIO OUT (May 2026)
  • Circuit Surgery (June 2026)
  • Circuit Surgery (July 2026)
  • Circuit Surgery (August 2026)
  • Circuit Surgery (September 2026)
  • Circuit Surgery (October 2026)
  • Circuit Surgery (November 2026)
Articles in this series:
  • Max’s Cool Beans (January 2025)
  • Max’s Cool Beans (February 2025)
  • Max’s Cool Beans (March 2025)
  • Max’s Cool Beans (April 2025)
  • Max’s Cool Beans (May 2025)
  • Max’s Cool Beans (June 2025)
  • Max’s Cool Beans (July 2025)
  • Max’s Cool Beans (August 2025)
  • Max’s Cool Beans (September 2025)
  • Max’s Cool Beans: Weird & Wonderful Arduino Projects (October 2025)
  • Max’s Cool Beans (November 2025)
  • Max’s Cool Beans (December 2025)
  • Max’s Cool Beans (January 2026)
  • Max’s Cool Beans (February 2026)
  • Max’s Cool Beans (March 2026)
  • Max’s Cool Beans (April 2026)
  • AOShop (May 2026)
  • Max’s Cool Beans (June 2026)
  • Max’s Cool Beans (July 2026)
  • Max’s Cool Beans (August 2026)
  • Max’s Cool Beans (September 2026)
  • Max’s Cool Beans (October 2026)
  • Max’s Cool Beans (November 2026)
Articles in this series:
  • Power Electronics Part 1: DC-DC Converters (April 2026)
  • SSB Shortwave Receiver (May 2026)
  • Power Electronics Part 3: Isolated DC-DC Converters (June 2026)
  • Power Electronics Part 4: AC-DC Converters with Rectifiers (July 2026)
  • Power Electronics Part 5: power factor correction & EMI fifiltering (August 2026)
  • Power Electronics Part 5: power factor correction & EMI fifiltering (September 2026)
  • Power Electronics Part 5: power factor correction & EMI fifiltering (October 2026)
  • Power Electronics Part 5: power factor correction & EMI fifiltering (November 2026)
Articles in this series:
  • Audio Out (January 2024)
  • Audio Out (February 2024)
  • AUDIO OUT (April 2024)
  • Audio Out (May 2024)
  • Audio Out (June 2024)
  • Audio Out (July 2024)
  • Audio Out (August 2024)
  • Audio Out (September 2024)
  • Audio Out (October 2024)
  • Audio Out (March 2025)
  • Audio Out (April 2025)
  • Audio Out (May 2025)
  • Audio Out (June 2025)
  • Audio Out (July 2025)
  • Audio Out (August 2025)
  • Audio Out (September 2025)
  • Audio Out (October 2025)
  • Audio Out (November 2025)
  • Audio Out (December 2025)
  • Audio Out (January 2026)
  • Audio Out (February 2026)
  • Audio Out (March 2026)
  • Audio Out (April 2026)
  • Audio Out (June 2026)
  • Audio Out (July 2026)
  • Audio Out (August 2026)
  • Audio Out (September 2026)
  • Audio Out (October 2026)
  • Audio Out (November 2026)
Articles in this series:
  • Techno Talk (February 2020)
  • Techno Talk (March 2020)
  • (April 2020)
  • Techno Talk (May 2020)
  • Techno Talk (June 2020)
  • Techno Talk (July 2020)
  • Techno Talk (August 2020)
  • Techno Talk (September 2020)
  • Techno Talk (October 2020)
  • (November 2020)
  • Techno Talk (December 2020)
  • Techno Talk (January 2021)
  • Techno Talk (February 2021)
  • Techno Talk (March 2021)
  • Techno Talk (April 2021)
  • Techno Talk (May 2021)
  • Techno Talk (June 2021)
  • Techno Talk (July 2021)
  • Techno Talk (August 2021)
  • Techno Talk (September 2021)
  • Techno Talk (October 2021)
  • Techno Talk (November 2021)
  • Techno Talk (December 2021)
  • Communing with nature (January 2022)
  • Should we be worried? (February 2022)
  • How resilient is your lifeline? (March 2022)
  • Go eco, get ethical! (April 2022)
  • From nano to bio (May 2022)
  • Positivity follows the gloom (June 2022)
  • Mixed menu (July 2022)
  • Time for a total rethink? (August 2022)
  • What’s in a name? (September 2022)
  • Forget leaves on the line! (October 2022)
  • Giant Boost for Batteries (December 2022)
  • Raudive Voices Revisited (January 2023)
  • A thousand words (February 2023)
  • It’s handover time (March 2023)
  • AI, Robots, Horticulture and Agriculture (April 2023)
  • Prophecy can be perplexing (May 2023)
  • Technology comes in different shapes and sizes (June 2023)
  • AI and robots – what could possibly go wrong? (July 2023)
  • How long until we’re all out of work? (August 2023)
  • We both have truths, are mine the same as yours? (September 2023)
  • Holy Spheres, Batman! (October 2023)
  • Where’s my pneumatic car? (November 2023)
  • Good grief! (December 2023)
  • Cheeky chiplets (January 2024)
  • Cheeky chiplets (February 2024)
  • The Wibbly-Wobbly World of Quantum (March 2024)
  • Techno Talk - Wait! What? Really? (April 2024)
  • Techno Talk - One step closer to a dystopian abyss? (May 2024)
  • Techno Talk - Program that! (June 2024)
  • Techno Talk (July 2024)
  • Techno Talk - That makes so much sense! (August 2024)
  • Techno Talk - I don’t want to be a Norbert... (September 2024)
  • Techno Talk - Sticking the landing (October 2024)
  • Techno Talk (November 2024)
  • Techno Talk (December 2024)
  • Techno Talk (January 2025)
  • Techno Talk (February 2025)
  • Techno Talk (March 2025)
  • Techno Talk (April 2025)
  • Techno Talk (May 2025)
  • Techno Talk (June 2025)
  • Techno Talk (July 2025)
  • Techno Talk (August 2025)
  • Techno Talk (October 2025)
  • Techno Talk (November 2025)
  • Techno Talk (December 2025)
  • Techno Talk (January 2026)
  • Techno Talk (February 2026)
  • Techno Talk (March 2026)
  • Techno Talk (April 2026)
  • Techno Talk (May 2026)
  • Techno Talk (May 2026)
  • Techno Talk (June 2026)
  • Techno Talk (July 2026)
  • Techno Talk (August 2026)
  • Techno Talk (September 2026)
  • Techno Talk (October 2026)
  • Techno Talk (November 2026)
The Fox Report Barry Fox’s technology column An opportunity for Manhattan’s new Freeview box A s Sky switches customers from satellite dish reception to online streaming, there is a growing park of satellite dishes ready, willing and able to deliver free TV and radio via the Freesat service – which is roughly equivalent to terrestrial Freeview. The main difference is that Freesat has some extra free channels (100+ in all, with 35 in HD). So now seems a very good time for the industry to sell Freesat receivers and recorders. That’s what makes it so strange that Humax, one of the pioneers in satellite reception, has quit the Freesat market. But this has created a big opportunity for Humax’s main rival in the “Free TV” business, Manhattan. So it was no surprise that the 30-year-old British company recently announced a new Freesat receiver/recorder to match its existing Freeview recorders. The S4-R Freesat 4K TV Recorder is Manhattan’s fourth-generation Freesat device. Conventionally, it has two tuners to record two program channels at the same time from a dish with two LNBs. However, if the dish has a more modern wideband LNB, as used for Sky Q, the S4-R can ‘tape’ four channels at once. This is possible because a wideband LNB outputs all the vertically polarised signals via one dish feed and all horizontal signals via a second dish feed. A smart receiver/recorder, like the S4-R, then decodes the two feeds into four program channels. Personally, I prefer to use the original type of LNB, but with four (Quad) or eight (Octo) F-plugs (instead of the usual two). That way, I can run separate satellite feeds to receivers and recorders in different rooms, with spare feeds to check dish alignment by testing signal strength. As the name suggests, the new Manhattan Freesat box can also handle 4K Ultra HD, if and when 4K broadcasts are available, or when streamed. The current Manhattan model has an onboard 500GB HDD, with 1TB and 2TB versions to follow, Practical Electronics | August | 2026 giving 300, 600 or 1,200 hours TV recording time. Live TV can be paused for up to two hours and rewound, too. The user interface is clean and clear, disinguishing between live TV channels and on-demand content from streaming sources such as BBC iPlayer, ITVX, Channel 4 and 5. For copyright reasons, the streamed content cannot be recorded – just as Freely streams cannot be (legitimately) recorded. (Tech literates will of course already be aware of the low cost HDMI-to-USB capture dongles, which are widely and openly sold online to connect a receiver to a PC running free capture software like OBS). Pricing for the Manhattan TV S4-R 500GB model is £219.99, £249.99 for the S4-R 1TB and £279.99 for the S4-R 2TB. The box has both Ethernet and WiFi Internet connections and an optical S/PDIF socket for digital audio output to a soundbar or hi-fi system. There’s a clear instruction book printed on good old-fashioned paper – not just a weblink to an online manual. I found setting up the Manattan Freesat box easy and intuitive, with no need for the manual. During the process, I discovered a valuable diagnostic tool buried in the interface. When I plugged two dish LNB feeds into the receiver’s two F-plug sockets, the set-up screen warned that there was signal from only one. This suggested a bad connection or open circuit in one feed. But the screen also showed an “LNB Overload Detected” error message. I’ve not seen this before. Manhattan’s helpful Help explained that this message means the LNB feed is drawing heavier than usual DC current from the box, probably because of a short circuit in the feed cable, between the signal core copper and outer braiding. Armed with this simple clue, I tracked the cause down to a short circuit in one of the dish feeds. Once this was repaired, the error message disappeared and highquality pictures appeared. I also had problems connecting the box to my fibre broadband. A different error message helpfully told me that the box was connecting to my home network but not to the internet, either via an ethernet cable or by WiFi. But other equipment on the same network was working normally. It’s unclear why this happened. It could be related to the IPv6 settings on my router. I’ll probably never know because the problem self-solved when I played the usual trick of shutting down and rebooting everything on the entire home network, to create a whole new stack of dynamic IP addresses. As the IT Crowd always initially asked their helpline callers, “Have you tried switching it off and on again?” Perhaps it would make sense if all error message for all equipment now routinely offered similar offand-on-again advice. Bottom line conclusion: Even if it weren’t one of the few Freesat boxes left to buy, I’d be wholeheartedly recommending the Manhattan S4-R. Vape-powered drones I’ve previously written about the free source of lithium-ion rechargeable cells littering our streets. Every discarded single-use vape contains a good-as-new battery. As long as you use a safe charger designed for lithium-ion cells, several cells in parallel make a very useful power bank. Since the sale of single-use vapes has been banned, there have been fewer and fewer discards to pick up. But there are obviously stockpiles of unsold vapes, and they are now finding a good home A workshop in Ukraine is ganging batches of around fifty cells together to make a battlefield power bank, or using smaller clusters to fly drones. The story is here to read, with some videos which (hardly surprisingly) don’t reveal much about the manufacturing process: https:// PE pemag.au/link/accb 39