Tag Archives: Python

Using an Arduino with Python LESSON 14: Model a Moving Marble in a Room Using Parameters

In this lesson we show how to model a moving marble in vPython. We show how to create an animation where the marble bounces off the left and righty walls of our virtual room. For your convenience, we include the code below:


Using an Arduino with Python LESSON 8: Live Thermometer 3D Visual Using DHT11

In this video lesson we connect the Arduino to a DHT11 temperature and humidity sensor. We show how to wire the device up, and then how to code the Arduino. The data is passed from the Arduino to python. We then create a live 3D thermometer model that updates as the temperature changes.

On the arduino side, this is the code which we use:

Then on the python side, we use the following code:


Improved Gesture Recognition in Python and MediaPipe

In this video lesson we show you how you can improve the accuracy of your gesture recognition program developed in the last lesson. We do this by normalizing the hand landmarks distance matrix to a standard size. By doing this, you get accurate results independent of the distance your hand is from the camera. For your convenience, I include the code below which we develop in this lesson. Enjoy!


s lesson. Enjoy!

Using an Arduino with Python LESSON 5: Analog Voltage Meter in vPython

In this lesson we begin coding a 3D analog voltmeter model in vPython. We begin by connecting a potentiometer to an arduino to create a voltage divider. The voltage is read from the center tap of the potentiometer by the arduino, and then the arduino passes the data to python. Then, we animate the  analog voltmeter based on the readings passed from the Arduino. Enjoy!

Then this is the code we developed for the Python side.



Using an Arduino with Python LESSON 4: Visual Display of Measured Voltage in Visual Python

In this lesson we show how you can measure a voltage from a potentiometer using Arduino, and then pass that data to Visual Python over the serial port. Then we use visual python to create a 3D model that is animated by the live data.

On the Arduino side we use the following code to measure the voltage from the potentiometer:

Then on the python side we read and display the data with the following code:

Watch the video for a complete explanation of the code.