Found in European documentation from the 1980s, this circuit was originally designed for computer applications of the time. However, the basic idea can be adapted for use with microcontrollers.
Indicated by Texas Instruments, this 1968 circuit measures the duration of a light pulse captured...
We found this circuit in an old English documentation. The integrated circuit is of a specific type of...
We found this circuit in a 1975 publication. The circuit can be made with more modern equivalent...