Converting an image to gray scale, using Python and OpenCV
ESP8266 Arduino: Socket Server
In this tutorial, we will check how to set a socket server on the ESP8266 running the Arduino core. As a socket client for testing, we will use Putty. The tests of this tutorial were performed using a DFRobot’s ESP8266 FireBeetle board. Introduction In this tutorial, we will check how to set a socket server on the …
ESP8266 Arduino: Using the SHA1 algorithm
In this tutorial, we will check how to apply the SHA1 algorithm to a message using the Arduino core on the ESP8266. The tests of this tutorial were performed using a DFRobot’s ESP8266 FireBeetle board. Introduction In this tutorial, we will check how to apply the SHA1 algorithm to a message using the Arduino core on …
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ESP8266 Arduino: Getting temperature and humidity with a DHT22 sensor
In this tutorial we will check how to get temperature and humidity measurements from a DHT22 sensor, with the Arduino IDE running on the ESP8266. The tests were performed using a DFRobot’s ESP8266 FireBeetle board and a DFRobot DHT22 module. Introduction In this tutorial we will check how to get temperature and humidity measurements from a DHT22 sensor, with the …
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ESP32 Socket Server: Controlling a relay remotely
In this tutorial we will check how to control a relay connected to the ESP32 remotely, using sockets. The code will be developed using the Arduino core. 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 …
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Raspberry Pi 3 Raspbian: Exposing a Flask server to the local network
In this tutorial we will check how to expose a Flask server to the local network, so it can be reached from clients connected to that same network. This tutorial was tested on a Raspberry Pi 3 model B+, running version 4.9 of Raspbian, installed using NOOBS. Introduction In this tutorial we will check how to expose a Flask server …
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ESP32 Socket Server: Connecting from a Putty socket Client
In this tutorial, we will check how to setup a socket server on the ESP32 and how to contact it using Putty as a socket client. The code will be implemented on the Arduino core for the ESP32. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board. Introduction In this tutorial, we will …
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Raspberry Pi 3: Getting the local IP address
In this tutorial, we will check how to get the local IP address of the Raspberry Pi using the command line and the ifconfig command. This tutorial was tested on a Raspberry Pi 3 model B+, running version 4.9 of Raspbian, installed using NOOBS. Introduction In this tutorial, we will check how to get the local IP address of …
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ESP32 Arduino Socket server: Getting remote client IP
In this ESP32 tutorial, we will check how to get the IP of a socket client that connects to a socket server hosted on the device, using the Arduino core. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board. Introduction In this tutorial, we will check how to get the IP …
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ESP32 Arduino: Sending data with socket client
In this ESP32 tutorial we will check how to send data with a socket client on the Arduino core. 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 send data with a socket client on the Arduino core. Since we will need to …
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