Getting started with Arduino can feel quite overwhelming at first because you're faced with the decision of what board to buy ...

A continuity tester that indicates the resistance of, say, PCB traces with musically-related tones, whose pitch changes with ...

A simple, low cost, and precision frequency meter uses only two pins of a pc parallel port (Figure 1). The TTL-level periodic input signal with frequency f IN connects to the ACK pin of LPT1. This ...

You can make this tomato sauce recipe with either fresh or canned tomatoes. If using fresh, make sure they have a good deep colour and are juicy with lots of flavour. Heat the olive oil in a wide ...

Bluetooth is everywhere, but it’s hard to inspect. Most of the magic is done inside a Bluetooth controller chip, accessed only through a controller-specific Host-Controller Interface (HCI) protocol, ...