Electronics Design

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DIY wattmeter / Power grid analyzer

Hello, I thought it would be interesting and maybe useful to do that: http://www.muselec.fr/Network%20analyser.htm Pardo...
1 comments posted 4yrs
posted by vincent.thiernesse
1 comments posted 4yrs posted by vincent.thiernesse

Odd camera installation weight requirement

I'm installing a PTZ camera on a ceiling. The unit weighs a bit less than a kg. The documentation claims: When installi...
17 comments posted 4yrs
posted by blockedofcourse
17 comments posted 4yrs posted by blockedofcourse

power supply controller board

I got the first assembled board and it works! Rev A! First try! The uZed is running Linux and blinking an LED. https://w...
3 comments posted 4yrs
posted by jlarkin
3 comments posted 4yrs posted by jlarkin

OT? Truck Pizza

We told bad jokes as kids that X job didn't need a rocket scientist. This involved a few. A start up called Stellar Pizz...
8 comments posted 4yrs
posted by deanh6929
8 comments posted 4yrs posted by deanh6929

Haasoscope

Anyone used one of these?... https://www.crowdsupply.com/andy-haas/haasoscope It's plenty fast enough for my current pr...
16 comments posted 4yrs
posted by clive
16 comments posted 4yrs posted by clive

Ford F 150 Recall

There's a problem with software on some of them that disables the low tire pressure warning light. Cranky old white hair...
25 comments posted 4yrs
posted by deanh6929
25 comments posted 4yrs posted by deanh6929

Chinese Brokers

Chinese brokers should be avoided at all costs, unless they are the difference between making a product and money, or n...
0 comments posted 4yrs
posted by gnuarm.deletethisbit
0 comments posted 4yrs posted by gnuarm.deletethisbit

Qualcomm Quick Charge detecting compatible devices

How does Qualcomm Quick Charge sense the presence on another compatible device. Isit looking for voltahe on certain USB...
4 comments posted 4yrs
posted by pamela.private.mailbox
4 comments posted 4yrs posted by pamela.private.mailbox

Tonghui TH2822C Handheld LCR Meter Price Drop

The Tonghui TH2822C has had a significant price drop. It used to be C$436.17 and is now C$170.10, a drop of -61%. Shipp...
5 comments posted 4yrs
posted by spamme
5 comments posted 4yrs posted by spamme

group photo

https://www.dropbox.com/s/m8zc7g56jul39d0/NIF_Tour-Highland%20Tech%20group%20photo%20TC.jpg?raw=1 We got a tour of the...
16 comments posted 4yrs
posted by jlarkin
16 comments posted 4yrs posted by jlarkin

Inverters vs wallwarts

I'm setting up a UPS for my computer/comms equipment using an inverter/charger and battery from Amazon. The equipment d...
53 comments posted 4yrs
posted by bp
53 comments posted 4yrs posted by bp

power supply subtelties

I never thought a lot about general-purpose bench type power supplies, but now we have to design some. A power supply h...
14 comments posted 4yrs
posted by jlarkin
14 comments posted 4yrs posted by jlarkin

Spade connectors current ratings

https://www.ebay.com/itm/144578327967 Blue is 15A. Yellow is 24A. But i need 30A. The contact areas are the same and lo...
29 comments posted 4yrs
posted by edward.ming.lee
29 comments posted 4yrs posted by edward.ming.lee

another board P939

Got my boards today. We always ask for a "solder sample" to admire; it's not guaranteed to be functional. This one has...
23 comments posted 4yrs
posted by jlarkin
23 comments posted 4yrs posted by jlarkin