electronupdate

Sadly one of my Blink cameras failed.. it stopped connecting to the network.

Ali express buy: digital tire pressure gauge Circuit board has a sensor (metal can on top) and integrated circuit (circular epoxy blob in middle) Photo of the sensor: Probably a bridge arrangement with a piezo-resistive element.

A recent Ali - express Lora module, the "RA-02" Removing the RF shield shows a circuit board with 3 semiconductors: The SX1278 Lora module An RF switch A NPN Transistor Removing the SX1278 from it's package shows enables this die photo: Here is a close up…

On the Ali Express website one can find a selection of attractively priced multimeters with pretty good specs.

In a recent blog post I took a look at the Apple Airtag2.

The ESP32 line seems to be pretty popular among the electronics community.

The Airtag 2 is out.

Ali Express lists Pi Picos for about $2.25 each (including shipping!)

Another crazy-cheap item from Ali Express Built around a single integrated circuit from Bluetrum, the AB5656C2.

In another Ali-Express purchase I bought a digital level.... super useful in the workshop especially for setting blade angles on a table saw.

Behold a heated blanket controller!

What's the one thing you think would be important for a rain gauge design?

An Ali-express find.

An interesting find at Ali-Express: a wall switch that can turn on a lamp in a room which was not wired for one originally. https://www.aliexpress.com/item/1005008624426312.html The "remote" is packaged like a light switch...but inside is a RF module and…

The wheel.

A look at an encryption device commonly found on laser printer toner cartridges to ensure the customer only buys replacements from the company which makes the printer.

I built a rather nice fountain a few years ago, however in the summer Algae builds up on the surface of granite and eventually breaks free.... finding it's way into the pump which causes a jam.

What lurks in a common garden light?

I needed to put a rain gauge onto my house and a 3D printed part seemed like an excellent approach.

The secrets inside of a digital timer Classic low-power design!

A sad tale.... replaced a bunch of MR16 bulbs with some nice looking Philips bulbs.... but they are pretty heavy.

Reverse engineering what's going on in a semiconductor used to be the domain of some pretty expensive tools.

A look at what one of the best-selling, inexpensive, multimeters one can find on the Amazon Shoppping site......

A MR16 LED recently started to produce purple, rather than the desired white light.

I needed jet another lab power supply for a project and I decided to simply buy the best selling unit on my countries Amazon web site.