Circuit diagrams and schematics - Electronic projects

This is a Logic probe circuit is one,That is suitable for checking the voltage levels in the TTL circuit. It receives from the circuit being tested.Shows how high or low logic level one. The circuit when the input voltage to the probe Tip is higher than 2.1 volts (state logic “high”).Transistor Q1 will run the [...]

This is a cycle high or low status of the digital logic signal. Since the 5V power supply is ideal for TTL digital And the circuit to clearly display text. Is easy to see the value. Operation of the circuit is in normal state or input into Low. And it IC1 to a High state [...]

This circuit is quite useful for displaying the states of digital lines. The two 330R resistors may need to be changed as the circuit I generally use is using a tri-colour LED(3 legs) with common cathode. Other LED’s may need more or less current. Input Output 0 Green 1 Red Nothing No LED Related Links [...]