QEMU – Linux Kernel & File System Setup

by Carlos on September 21, 2024

in Linux

Abstract The following shows how to create a Linux file system and populating it using BusyBox, compiling the Linux kernel and running this on QEMU for ARM. In the second half we’ll use Buildroot to abstract all of this. Installing QEMU Runt the following (Ubuntu) command: sudo apt install qemu-system-arm Manual Configuration Create a base […]

Send text messages from your ESP WiFi module through your Twilio account.

Make phone calls with voice from your ESP8266 and Twilio’s API.

Learn to make a phone call with your ESP8266 WiFi module and Arduino microcontroller using Twilio’s API.

Use an Android app to control the digital pins of your Arduino microcontroller through the ESP8266 WiFi module. The Android app will have three buttons that you can use to toggle three LEDs connected to your Arduino board. The Androi application sends an HTTP request to the ESP8266 and the Arduino processes the request.

Use the ESP8266 to control your Arduino’s pins via WiFi. In this tutorial we will create a webpage with three buttons to control LEDs connected to the Arduino from the internet.

The ESP8266 can easily be used as a webserver but you’ll need a microcontroller to handle the http events/requests. In this tutorial we’ll use the arduino to help the esp serve websites.

So you got the world wide famous ESP8266 wifi module to play around with it and your Arduino but don’t know where/how to get started? For starters, the ESP8266 requires a 3.3V input which we can get by connecting a 3.3V regulator to the Arduino’s Vin pin. The code is just as simple, a loop to receive and send commands, and another loop to print the response.

PIC Tutorial: 4-Digit 7-Segment LED

by Miguel on February 21, 2014

in PIC

Learn to connect a PIC microcontroller to a 4-digit 7-segment LED display.

In this tutorial I will show you how to blink the RED led in your Stellaris LaunchPad board.