five-timer

Introduction

five-timer is a GUI tool that helps you calculate the output values from the NE555 timer IC for both the monostable and astable modes. It also provides you with estimation graph for easier and quick estimation of resistor values needed.

Installing

To install five-timer you will need to have installed python 3.4 or higher. Python can be installed from here. You can then install five-timer on the command line using the following line:

pip install five-timer

Launching

After installation, five-timer can be launched from the command line using the following command

five-timer

The tool will open as shown below:

Usage

Monostable Mode
To get the Time on, enter the desired capacitor and resistor value, choosing their ranges using the drop-down select button next to the entry box. Click Calculate button and the Time on is displayed in seconds units.

Astable mode
Similarly, the output parameters using the NE-555 timer IC can be calculated using the same method:

1. Enter the value of R1, R2 and C1 while choosing their range of values
2. Click the Calculate button

The output values will be displayed.

Estimation graph📉

1. Click on Tools menu on the menubar
2. Click on the Estimation graph

A new TopLevel window opens displaying the Estimation graph.

For more information on the NI-555 timer IC, you can download its datasheet here