In this user guide, we will learn to build an RGB LED Control Android App with MIT App Inventor and control it using Arduino. This Andriod app will allow us to change the color of an RGB LED by setting it from a color picker featured on the application screen. The transmission of RGB values … Read more
In this user guide, we will learn to build an Android App using MIT App Inventor and display temperature readings acquired from DS18B20 sensor with Arduino. The transmission of sensor data will be through the HC-05 Bluetooth module. Our Android application will display sensor readings on our smartphones. The sensor readings could be accessed anywhere … Read more
In this ESP32 guide, we will introduce you to InfluxDB and how to use it with ESP32 development board. We will show you how to create a database bucket and send ESP32 data to the InfluxDB time series database. Moreover, we will also show you how to build your dashboard so that you are able … Read more
In this tutorial, we will learn to use the I2C communication port of Arduino. Different Arduinos support at least one I2C port. Similarly, Arduino Uno also has one I2C port. We will learn to configure Arduino as an I2C master and an I2C slave device. In the end, for demonstration purposes, we will perform i2c … Read more
In this user guide, we will look at an interesting way to use Radio Frequency Identification (RFID) technology via RFID reader module. These RFID reader modules are very handy in today’s fast-paced world. Due to their fast, accurate and secure nature, they are widely used with microcontrollers in various fields e.g. from supermarkets for fast … Read more
In this tutorial, we will learn about MAX30102 high sensitivity pulse oximeter and heart rate sensor and how to interface it with Arduino. This sensor is used to measure heartbeat/pulse rate in BPM and blood oxygen concentration (SpO2) in percentage. Firstly, we will discuss the introduction, pinout, working, and connection diagram of the sensor with … Read more
In this tutorial, we will learn about MAX30100 pulse oximeter and heart rate sensor and how to interface it with Arduino. This sensor is used to measure heartbeat/pulse rate in BPM and blood oxygen concentration (SpO2) in percentage. Firstly, we will discuss the introduction, pinout, working, and connection diagram of the sensor with Arduino. After … Read more
In this getting started tutorial, we will learn to interface the A4988 stepper motor driver module with Arduino. This A4988 driver module which is used to control a stepper motor in a relatively simple manner. Using only two pins of Arduino and A4988 driver module, we can control the speed of the rotation as well … Read more
In this tutorial, we will learn how to send sensor readings to an Android phone using Arduino nRF24L01+ module, and BLE. The transfer of data will be through Bluetooth Low Energy (BLE). We will use DHT22 sensor to access current temperature readings and send them to our android phone using nRF24L01+ RF module that we … Read more
In this tutorial, we will learn how to interface I2C LCD with Arduino and how to display static, scrolling, and custom characters on I2C LCD. This I2C LCD is a 16×2 device which means it can display 16 columns by two rows of characters. The characters are alphanumeric, but you can create custom characters for … Read more