Introduction

In this tutorial we'll use a capacitive touch sensing and how it can be leveraged to control home appliances. In this project, we'll specifically focus on creating a Motion Detective Lighting System using a capacitive touch sensor connected to an ESP32 microcontroller. The efficient method of creating loops using Smowcode will be a key highlight, offering a swift and seamless approach to loop implementation.

Apparatus

Before we dive into the procedure, let's gather the necessary components:

ESP32 microcontroller
Capacitive touch sensor
LED (connected to pin P2 of ESP32)
On-button click node
Right node
Power source (3.3 volts)

Procedure

Setting up the On-Button Click Node
Start by taking an on-button click node and configure it to respond to touch events. Connect it to pin number four and make sure it is powered with 3.3 volts.
Configuring the Right Node
Introduce a right node to the flow. This node will be triggered whenever the touch sensor is activated. Set it to make the LED, connected to pin P2 of the ESP32, turn high. This action will illuminate the light, providing the desired effect.
Introducing Delay for Auto-Off
To enhance the user experience, add a delay of 3 seconds after the touch sensor is triggered. During this delay, the LED will remain high, and the light will continue to glow. After the delay, set the LED to low, turning off the light.
Saving and Uploading the Flow
Save the flow configuration, verify its correctness, and upload it to the ESP32 microcontroller. Once successfully uploaded, the system is ready to respond to touch sensor activations.

Conclusion

Congratulations! You have successfully created a Motion Detective Lighting System using a capacitive touch sensor and the power of Smowcode on the ESP32. This tutorial has provided insights into efficient loop creation, showcasing a practical application of capacitive touch sensing technology. Feel free to experiment further and integrate this knowledge into your future IoT projects.