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ESP32 Keypad Database Security System Code
This post will discuss the code of our ESP32 Keypad Database Security System and how we will control our doorlock using the keypad. This will also explain how it calls our REST API server so that we can access our database interface.
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Build REST API Using Node.js, Express and MongoDB
We are creating our own REST API Server using Node.js, Express and MongoDB Atlas. This is a step by step tutorial on how to execute CRUD (Create/Read/Update/Delete) operation on our keycodes stored in the database.
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ESP32 Keypad Database Security System – Design
This post shows how you could create your own ESP32 Keypad Doorlock mechanism using a database to store your valid keycodes.
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Setup Raspberry Pi Headless No Monitor
In this post we are going to setup our Raspberry Pi in Headless Mode. We do not need to attach any external monitor or keyboard to it. We will connect to it remotely afterwhich.
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MongoDB Atlas: An Overview and how to get started
In this post I am going to give an overview on MongoDB Atlas setup and how to get started creating your own cluster. We will use this cloud database as our backend in future Internet Of Things (IOT) project.
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Using Node.js and React to display a chart of real-time sensor readings
This post will show how you can use Node.js and React to display a chart of real time sensor readings from an ESP32 microcontroller.
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Read LDR/Photoresistor Sensor using ESP32
This short post will discuss how we can read sensor values coming from a Light Dependent Resistor (LDR) or a photoresistor using an ESP32 board.
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Common PlatformIO Errors
This page will list some of the most common errors that I have encountered while using PlatformIO IDE. PlatformIO is an extension in Visual Studio Code that will allow you to program your microcontroller board.
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Install Visual Studio Code or VSCode on Windows
This post will show how to install Visual Studio Code or VSCode in your Windows laptop or machine. We will use this IDE in our IOT projects.
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Install Postman Windows
In this post, I am going to share with you how to install Postman in your Windows machine. We will use this tool to test REST api endpoint.
