Two-board basic event counter. Main board has the 3-digit counter circuit while the second board has Count and Reset pushbutton switches and debounce circuit. Can be cascaded with other boards to prov...

Circuit designed around a single IC that controls both analog and digital sections to provide a simple yet versatile meter. Terminal strip input. power switch, selectable decimal point. Space for scal...

A double-sided board designed to eventually replace Kits 2 and 34.

This kit is the hardware ‘platform’ that is the basis for a number of different timing modules. The hardware is the same for each kit -- the only change is the firmware programmed into the microcontro...

Circuit designed around a single Harris ICL7225 IC that contains digital and LCD driver sections to provide a simple yet versatile general purpose counter. 5V TTL signal levels for input and control (...

This kit is a stand-alone frequency meter capable of measuring repetitive signals up to a frequency of 50MHZ. It has two frequency ranges (15 and 50 MHZ) as well as two sampling rates (0.1 and 1 secon...

This is a big digital clock using 2.3" LED displays for the hours and minutes. It can operate in 12-hour or 24-hour mode. The software program including a time adjustment mode can control the clock to...

Your friends will never guess the time, until you let them in on the secret of this clock! This clever clock displays time in binary -- the ones and zeros of computer language. You’ll enjoy watching t...

Alternative Firmware for Kit 148. 40KHz Auto Ranging Frequency Meter. See Kit 148 for additional information and usage....

Alternative Firmware for Kit 148. Programmable Down Timer counting down in hours from a max. of 10,000 hours. See Kit 148 for additional information and usage. ...