Panelizing and Gerber Generation in Eagle

Story I have been working with Eagle for quite some time but never really got a PCB manufactured. almost all the time i used the toner transfer method to make homebrew PCBs. But then i took a project in which i had to use SMD components and i could no longer use toner transfer method because of the limits on resolution of the Laser printer. Time had come for “properly” designing and generating “Gerber files ...

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Using Python and Arduino MKR1000 for Secure IoT

Getting started with Python and Arduino MKR1000 for secure IoT projects. Things used in this project Hardware components Arduino MKR1000 × 1 Software apps and online services Zerynth Studio Story Arduino MKR1000 meets Python With the last release, Zerynth officially supports Arduino MKR1000, a device specifically designed for secure IoT projects. The MKR1000 is described as a powerful board that combines th ...

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Obstacle Detection

In this project, we will use several ultrasonic sensors to create a robot car with obstacle detection feature. The sensors will help us estimate the distance of the car from the nearby obstacles. Thus allowing us to create routines that we can execute when the car is about to hit the obstacle while moving. If you want to know more on how an ultrasonic sensor work, please refer to 4Duino Ultrasonic Sensor pr ...

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Reverse engineering the popular 555 timer chip

This article explains how the LMC555 timer chip works, from the tiny transistors and resistors on the silicon chip, to the functional units such as comparators and current mirrors that make it work. The popular 555 timer integrated circuit is said to be the world's best-selling integrated circuit with billions sold since it was designed in 1970 by analog IC wizard Hans Camenzind[1]. The LMC555 is a low-powe ...

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Home Automation with Arduino MKR1000 and Windows 10

Home Automation through Wi-Fi connectivity (Arduino MKR1000) and Windows 10. Things used in this project Hardware components Arduino MKR1000 × 1 Relay (generic) Input: 3V × 1 General Purpose Transistor NPN × 1 1N4007 – High Voltage, High Current Rated Diode × 1 Resistor 10k ohm × 1 3.3k Ohm × 1 Breadboard (generic) × 1 Jumper wires (generic) × 1 Insulation Tape × 1 Software apps and online services Microsof ...

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SOMO-II MP3 Player

The Sound Module-II or the SOMO-II is a small and efficient audio module from 4D Systems that is able to play .mp3 or .wma audio files in the convenience of accessing it within a microSD card or a USB Flash drive (by using external components). The aim of this project is to showcase the basic functions of the SOMO-II Audio Module such as the Play, Pause/Stop, Next, Previous and the Volume controls. The equa ...

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Using BMP180 for temperature, pressure and altitude measurements

The BMP180 is a new generation digital barometric pressure and temperature sensor from Bosch Sensortec. In this tutorial, we will briefly review this device and describe how to interface it with an Arduino Uno board for measuring the surrounding temperature and pressure. We will also discuss about retrieving the sensor altitude from its pressure readings. Experiment setup Bosch Sensortag’s BMP180 ...

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Beekeeping with Arduino

Beekeeping (or apiculture, from Latin: apis "bee") is the maintenance of honey bee colonies, commonly in hives, by humans. Things used in this project Story Beekeeping (or apiculture, from Latin: apis "bee") is the maintenance of honey bee colonies, commonly in hives, by humans. A beekeeper (or apiarist) keeps bees in order to collect their honey and other products that the hive produces (including beeswax, ...

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Intelligent Buggy featuring 4Duino-24

4Duino Intelligent Buggy project demonstrate how does uCAM-II works. This project also utilized two 4duino communicating using Server-Client architecture over TCP. It also uses a buggy car which carry the 4duino server and uCAM-II. By using built-in ESP8266, 4duino client sends a request to 4duino server to move the buggy and capture photo via wireless communication. Server-Client architecture is a network ...

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Arduino 433Mhz RF Wireless Data Transfer

The most practical and cool way of sharing data from 1 Arduino to another is by far using a radio transmitter and receiver. The simplest form of wireless transmission (I could find) is the 433Mhz ASK modules. They come in pairs, a receiver and a transmitter. They are ridiculously cheap, selling at $1 or less a pair!! These modules provide simplex 1 way data transmission, in order to get a 2 way communicatio ...

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The Arduino Gatekeeper

The Arduino Gatekeeper is an IoT-connected authenticator for outdoor gates and doors. No longer are keys required for secure backyards! Things used in this project Story Introduction The Arduino Gatekeeper is an IoT-connected authenticator for outdoor gates and doors (or anything else that can be monitored with reed switches). The first function of the device is to remotely monitor when gates are opened or ...

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GPIO Control from Web Browser featuring 4Duino-24

In this project, we will learn how to control the on board 4Duino LED via I/O port (D13) from web browser. In built ESP8266 Wi-Fi module is configured as server enabling the 4Duino to receive commands from a web browser (client). How it works Note: This project could be carried out only if the Client and the Server are in the same network because your home router prevents the 4Duino server to be accessed fr ...

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