If you use the 555 chip to form a 1s pulse generator, how to choose the external resistor and capacitor

1, first of all, the 555 timer will be connected to the monostable mode, that is, the TRIG terminal is connected to the circuit of a potentiometer (adjustable resistor), the THRES terminal to the positive terminal of the power supply, the DISCHARGE terminal is connected to the negative terminal of the capacitor, and the OUT terminal is connected to the circuit of the required output pulse.

2. Then calculate the required capacitor charging and discharging time according to the frequency of the required output pulse. Since the monostable mode output pulse width of the 555 timer is 1.1 times the capacitor charging and discharging time, it is necessary to divide the required output pulse width by 1.1 to get the capacitor charging and discharging time.

3. Finally, select the appropriate capacitor and resistor values based on the calculated capacitor charge/discharge time.