https://iotcircuithub.com/nodemcu-alexa-home-automation-system/
This Alexa NodeMCU control smart relay has the following features:

1. Control home appliances with voice commands using Alexa
2. Control home appliances with manual switches.
3. Monitor real-time feedback in the Alexa App.
4. Control home appliances manually without internet.

You don't need echo dot for this project. And you can control the appliances from anywhere in the world.

Upcoming Smart Home Project with ESP32.
WiFi + Bluetooth + Manual Switch control 8 appliances.

Motion Sensor Switch using 4017

When anyone enters the washroom the IR proximity sensor senses the motion and turns on the light.
After that when he or she exits the washroom, the IR sensor again sense the motion and turn off the light.
Please visit following article
https://easyelectronicsproject.com/mini-projects/motion-sensor-light-cd4017-ir/

Arduino Vs Raspberry Pi Pico Vs ESP32

The Last Poll result from YouTube

https://iotcircuithub.com/esp32-cam-telegram-wifi-door-lock/
Project: WiFi Door Lock using ESP32 CAM & Telegram
With this IoT project you can take multiple photo, unlock and lock the door from anywhere in the world with the Telegram app.

Upcoming project.....
Connect multiple NodeMCUs with the same Blynk account to control all the home appliances of multiple rooms.

ESP32CAM Blynk Motion Sensor Security Camera with Notification
https://easyelectronicsproject.com/esp32-projects/esp32cam-blynk-security-camera/

I have shared all the GPIO details of the NodeMCU board in this picture. I refer to these GPIO details before making any NodeMCU projects.

Upcoming project.....
Connect multiple ESP32 & NodeMCUs with the same Blynk account to control all the home appliances of multiple rooms from smartphone and manual Switches.