Practical Electronics No 7 2024

Read in the issue 7 Practical Electronics 2024

Pi Pico-based Thermal Camera by Kenneth Horton. Athermal infrared camera measures hot or cold spots compared to the surrounding area - useful for diagnosing hot spots in electronic circuits, which may indicate a failing component. They can be pricey, but not this one, a DIY version that’s easy to build.
Dynamic NFC Tag by Tim Blythman. The availability of dynamic NFC tags means you can now easily create your own custom NFC/RFID Tags. This article explains how to program NFC chips that can be used as smart business cards and more.
Reciprocal Frequency Counter by Charles Kosina. A traditional frequency counter samples over a long period to get an accurate result. This one instead measures the average period and calculates the inverse, so it only needs to monitor a few pulses to get a precise reading. It’s useful up to about 10 MHz.

Practical Electronics Magazine is the No. 1 UK magazine for hobby electronics enthusiasts everywhere. Each month’s issue is packed with practical constructional projects for the hobbyist, special features, advice and adverts from specialist electronics suppliers and more besides.

Contents: