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In this tutorial we will check how to control a relay remotely using serial communication over Bluetooth Classic. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board and a DFRobot relay board. Introduction In this tutorial we will check how to control a relay remotely using serial communication over Bluetooth Classic. …
Continue reading "ESP32 Arduino Bluetooth Classic: Controlling a relay remotely"
In this tutorial we will check how to get the minimum sampling period of the DHT22 and how to use it to make some temperature measurements without crossing the maximum sampling rate. To facilitate the interaction with the sensor, I’m using a DFRobot DHT22 module which already has all the electronics needed and exposes a wiring terminal that …
Continue reading "ESP32 Arduino: DHT22 Minimum Sampling Period"
In this tutorial, we will check how we can get humidity measurements from a DHT22 sensor, with the Arduino core running on the ESP32. To make the interaction with the sensor easier, I’m using a DFRobot DHT22 module which has all the additional electronics needed and exposes a wiring terminal that facilitates the connections. Introduction In this tutorial, …
Continue reading "ESP32 Arduino: Getting humidity measurements from a DHT22 sensor"
In this ESP32 tutorial, we will check how to get temperature measurements on the Arduino core running on the ESP32, using a DHT22 temperature and humidity sensor. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board. Introduction In this ESP32 tutorial, we will check how to get temperature measurements on the Arduino …
Continue reading "ESP32 Arduino: Getting temperature from a DHT22 sensor"
The objective of this tutorial is to explain how to configure the ESP32 to act as a discoverable Bluetooth device and then find it using a Python program. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. Introduction The objective of this tutorial is to explain how to configure …
Continue reading "ESP32 Arduino Bluetooth: Finding the device with Python"
In this tutorial we will check how to receive data on a serial connection operating over Bluetooth classic. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. Introduction In this tutorial we will check how to receive data on a serial connection operating over Bluetooth classic. This tutorial …
Continue reading "ESP32 Arduino Serial over Bluetooth: Receiving data"
The objective of this post is to explain how we can set the name of the ESP32 operating as a Bluetooth device, so it displays a user friendly name for other devices that discover it. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. Introduction The objective of …
Continue reading "ESP32 Arduino Bluetooth Classic: Setting the device name"
Controlling a relay remotely via HTTP using the ESP32.
In this ESP32 tutorial, we will check how to control the HTTP methods allowed for requests made to routes of the HTTP async web server. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. Introduction In this ESP32 tutorial, we will check how to control the HTTP methods allowed …
Continue reading "ESP32 Arduino async server: Controlling HTTP methods allowed"
In this ESP32 tutorial, we will check how to setup an asynchronous HTTP web server with the device operating as soft Access Point. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. Introduction In this ESP32 tutorial, we will check how to setup an asynchronous HTTP web server with …
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