EEVblog

Checking out the new 10 cent WCH CH32V003 48MHz RISC V processor demo board and the MounRiver Eclipse IDE. Getting to blinky. The CH32V003 is a pin-for-pin alternative to the STM8S003 at 1/3rd the price, with more features. If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog http://www.wch-ic.com/products/CH32V003.html http://www.wch-ic.com/products/categories/47.html?pid=5 ...

Stopping the robot uprising by tearing down a Samsung SR8980 robotic cleaning robot found in the dumpster. Forum: https://www.eevblog.com/forum/blog/eevblog-1523-dumpster-samsung-cleaning-robot-teardown/ Youtube:

Part 2 of the BM786 troubleshooting repair, proving it’s the processor at fault. Forum: https://www.eevblog.com/forum/blog/eevblog-1520-troubleshooting-a-faulty-bm786-multimeter/ Youtube:

ChatGPT has changed everything in the space of a month.2023 will be the year of Conversational Search and computer code generation.And how MidJourney and DALL-E have rendered artists obsolete, or at least turned ANYONE into a great and capable artist.This video thumbnail was generated in seconds by Dave who has ZERO artistic skills.Why The Chaser ...

What is Common Mode Rejection Ratio (CMRR) and how to measure it on a high voltage differential probe or differential amplifier. Youtube: Extended 30min version: https://www.youtube.com/watch?v=4gi2B3LrCww Differential Probe How It Works: https://www.youtube.com/watch?v=GOlgaEK2Hsk High Voltage Probe reverse engineering: https://www.youtube.com/watch?v=GOk1BYKSsOI&t=2s Forum: https://www.eevblog.com/forum/blog/eevblog-1521-how-to-measure-differential-probe-cmrr/

Looking at a faulty returned BM786 multimeter. Warning: Some components were harmed in the making of this video. Forum: https://www.eevblog.com/forum/blog/eevblog-1520-troubleshooting-a-faulty-bm786-multimeter/ Youtube:

Hacking a dumpster Sonos Play 5 Gen 1 speaker to remove all the evil software locking and turn it into a dumb speaker with just line-in and basic wireless Bluetooth. Integrating a new Fosi Audio ZX-TB21 2+1 amplifier. https://amzn.to/3USD7xQ Youtube: Sonos, the Juicero of wireless speakers: https://www.youtube.com/watch?v=lLyjvXAJcLM Forum: https://www.eevblog.com/forum/blog/eevblog-1519-free-your-sonos-speaker!-(hack)/

Depotting, teardown, and some reverse engineering analysis of the 400W Hoymiles solar microinverter. https://www.hoymiles.com/products/microinverter/ Hoymiles vs Enphase microinverter review: https://www.mcelectrical.com.au/hoymiles-microinverter-review/ Forum: https://www.eevblog.com/forum/blog/eevblog-1518-hoymiles-solar-microinverter-teardown/ Youtube: Odysee:

Installation of a Reclaim Heat Pump hot water system replacing a high efficiency gas tank hot water system. And anlysis of the results. Is a heat pump hot water system more efficient than a gas hot water system? Forum: https://www.eevblog.com/forum/blog/eevblog-1517-heat-pump-hot-water-install-analysis/ Youtube: Odysee: 00:00 – The existing gas tank hot water system 03:11 – Thermal IR ...

Mailbag Bonanza! Send stuff to: EEVblog Mailbag PO Box 7949 Norwest NSW 2153 AUSTRALIA Forum: https://www.eevblog.com/forum/blog/eevblog-1516-mailbag-bonanza!/ 00:00 – Mailbag Bonanza! 02:24 – Australian Signals Directorate 75th Aniversary 50 Cent Coin 05:07 – One-Shot Relay! 07:20 – Olight Torch Bonanza! https://www.olightstore.com.au/s/P7TWZN 08:20 – Olight Marauder 2 14,000 lumen torch 18:29 – Olight RN1500 Bike Light 23:02 ...

Upgrading the dumpster Tektronix TDS540D oscilloscope with an LCD had a few issues… Ebay listing if you want it: https://www.ebay.com.au/itm/225251897379 Forum: https://www.eevblog.com/forum/blog/eevblog-1515-dumpster-tektronix-tds540d-500mhz-oscilloscope-lcd-replacement/ Youtube:

A surprising dumptser diving find that might prove we live in a simulation. A Sony GTK-X1BT bluetooth enabled party jukebox Hi-Fi speaker system. Forum: https://www.eevblog.com/forum/blog/eevblog-1513-dumpster-tossers-have-no-shame/ Youtube: Odysee:

Why add bypass capacitors on a PCB like THIS? Answering a Twitter question: https://twitter.com/furan/status/1586889993234038786 https://www.vgamuseum.info/index.php/cpu/item/993-s3-supersavage-ixc-sdr Forum: https://www.eevblog.com/forum/blog/eevblog-1512-why-bypass-your-pcb-like-this/ Youtube: Odysee:

The magic smoke was released from my solar analytics monitoring system. What was the culprit? Also Dumb Dave™ gets ZAPPED! Forum: https://www.eevblog.com/forum/blog/eevblog-1511-my-solar-analytics-system-failed/ Youtube: Odysee:

HUGE SURPRISE inside the new low end $699 Rigol 12bit low noise HDO1000 oscilloscope! Hacking forum thread: https://www.eevblog.com/forum/testgear/hacking-the-hdo1khdo4k-rigol-12-bit-scope/ Forum: https://www.eevblog.com/forum/blog/eevblog-1510-$699-rigol-12bit-hdo1000-teardown-woah/ Youtube: Odysee: