Hello, I am trying to make a digital timer, which shows the hours and minutes
E.G
Each of the 4 7-segment displays are powered using a 4026 IC
00:00
09:11
21:56
I am trying to minimize the number of ICs used on the breadboard. Can I use a LM555 timer to generate an astable (continuous stream of rectangular pulses having a specified frequency)?
I used a LM555 calculator but the values it gave are in the millions (for the resistors), and I heard that for correct results, R1 and R2 should be between 1komh and 10Momh. Could someone give me optimal values for the IC? Or some other suggestion for the circuit?
E.G
Each of the 4 7-segment displays are powered using a 4026 IC
00:00
09:11
21:56
I am trying to minimize the number of ICs used on the breadboard. Can I use a LM555 timer to generate an astable (continuous stream of rectangular pulses having a specified frequency)?
I used a LM555 calculator but the values it gave are in the millions (for the resistors), and I heard that for correct results, R1 and R2 should be between 1komh and 10Momh. Could someone give me optimal values for the IC? Or some other suggestion for the circuit?