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ZeroPhone: A Pi-powered DIY mobile phone

Posted on January 18, 2017 by R-B Leave a comment

We have seen Arduino-powered cellphones before. Arsenijs introduces ZeroPhone– a Raspberry Pi Zero powered DIY mobile phone that costs less than $50 in parts. It is mostly open-source and linux-powered. It supports voice calls, texting, and basic apps like alarm clock, calendar, calculator, web browser, music player, etc. Features: Calling and SMS – this is the first functionality to be implemented, and will be considered crucial in the development. All the basic apps – alarm clock, calendar, calculator, phonebook, file browser, web browser and music player. Your own apps – SDK will be provided and it will be developer-friendly. The laand I’ll

A very basic object detection and alarm system using Arduino

Posted on January 18, 2017 by R-B Leave a comment

Dejan Nedelkovski from HowToMechatronics illustrates the use of HC-SR04 ultrasonic distance sensor in object detection, and its application for making a very basic password-protected Arduino-based security/alarm system. The project uses an Arduino board, character LCD display, 4×4 keypad,HC-SR04 ultrasonic sensor and buzzer.

Tutorial 2: EasyESP-1 “Hello World” Example

Posted on January 17, 2017 by R-B Leave a comment

After setting up the Arduino IDE to enable support for ESP8266, it’s time to write your first code for EasyESP-1 board. We will start with the classic hello world! example of electronics, a flashing LED. This is the best example to start with any new hardware platform as it gives us an opportunity to verify that the required software tools/drivers are installed properly and ready to rock. Hardware Setup In this example, we will connect the LD1 and D1 pins of J3 header together with a jumper wire as shown below. This will connect the LD1 LED near the bottom right corner of

Tutorial 1: Setting up the Arduino IDE for EasyESP-1

Posted on January 16, 2017 by R-B Leave a comment

One of the simplest way to program the ESP8266 chip on board EasyESP-1 is using the Arduino IDE. Following steps describe how to enable the ESP8266 support in the Arduino environment. Step 1 : Install Arduino IDE The first step toward setting up the Arduino platform for programming EasyESP-1 is to download and install the Arduino IDE. Go to the Arduino website and download Arduino IDE 1.6.11. Step 2: Install ESP8266 core package Next step is to install the ESP8266 core for Arduino IDE. It is an add-on that allows to write sketches for ESP8266 using the Arduino IDE and its libraries. The easiest way

Managing a menu driven user interface on a Nokia 5110 LCD

Posted on January 16, 2017 by R-B Leave a comment

An interactive menu driven LCD user interface (UI) is really useful in embedded applications that require setting up parameters for operation. This YouTube tutorial demonstrates how to manage a simple menu driven UI on a Nokia 5110 LCD for Arduino applications. This is the project we are going to build. In the display a simple menu appears, and with the help of three buttons I can navigate up, or down and select a menu item. Let’s select the first option. As you can see a new a UI screen is displayed and by pressing the up and down buttons we

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