In line with venture creator Gammawave, “The electronics fanatic can by no means have sufficient diagnostic instruments at their disposal.” Usually having diagnostic instruments out there means acquiring a multimeter, oscilloscope, logic analyzer – and a variety of different doodads – then dedicating a non-trivial quantity of house for storage and use.
The TriDiag check PCB is a completely totally different tackle the check tools paradigm, and matches three check instruments onto a credit score card-sized PCB. Instruments embody a continuity/diode checker, a 1kHz sq. waveform generator, and a contactless AC voltage indicator. Easy LEDs are used for the continuity/diode check and the voltage indicator, whereas the non-adjustable waveform generator outputs a sign with no visible indication.
The system runs on a single CR2032 coin cell battery, or it will probably as an alternative be powered externally by way of a 1.5 to 5V supply. Discrete surface-mount elements are used to kind all the indicator instruments, and the AC voltage indicator antenna is routed into the board itself. The cardboard’s electrical operation is defined within the venture write-up, and the board design is obtainable to your edification or duplication.
It’s a really cool design, even when it may be a bit thick for pockets storage with the battery and elements in-place. Alternatively, one definitely wouldn’t rule out maintaining one in your purse or commuter bag for electronics prognosis on the go. As a bonus function, it additionally has a millimeter scale printed on the sting, which might come in useful in a variety of conditions!