Practical Electronics Magazine Mar-22 Edição anterior

Practical Electronics March 22

Projects and Circuits:
Mini Isolated Serial Link;
This tiny module provides bidirectional, isolated, full-duplex serial communication. Ideal when two (or more) boards on separate supplies need to talk to each other.

Busy Loo Warning!
Ok, it's a bit tongue-in-cheek...but it could have other, more serious uses. The Busy Loo Warning flashes a bright LED light when you don't want someone barging in!

Battery Monitor Logger - Part 2
In part 1 (February 22) we described our new Battery Logger. Now we'll go over the construction, testing, setup and calibration procedures so you can build and use it.

Electronic Wind Chimes - Part 2
Last month (February 22), we described how our new Electronic Wind Chime worked. Now we modify the wind chime itself so it can be driven by a series of solenoids.

Greekcreit LCR-T4 Mini Digital Multi-Tester;
This compact digital tester will identify, check and analyse BJTs, JFETs, MOSFETs, diodes, LEDs, thyristors, resistors, capacitors and inductors - all for under a tenner!

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Series, Features and Columns:

Audio Out;
Analogue Vocoder - Part 5: Building the filters

Make it with Micromite;
Part 34: Using the Micromite with an EEPROM iButton

Circuit Surgery;
Op amp offsets - Part 2