The Pico W is connected to two LCD displays, an RTC module, a temperature sensor, a buzzer for the alarm feature, as well as a 4x4 keypad. All of this hardware is housed inside of a cardboard box ...

The SMT module captures features of a signal such as Period and Frequency, among others. This design measures input frequency signals within the range of 8 Hz to 10 MHz, and Period signals within ...