Arduino-l3dgecomm – Integrating L3DGEWorld and Arduino

L3DGEWorld is a tool for monitoring and interacting with networks and computer systems. Within a 3D world, entities bounce, spin, scale and otherwise change. These entities all represent an entity in another context - be it a server, phone, router or other monitorable device. The visual transformations represent various characteristics of these entities, such as packets per second, CPU load, memory usage or ...

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How to Create an Arduino Compatible Bluetooth 4.0 Module

I had been looking for a cheap alternative to some of the Arduino Bluetooth devices I'd seen, which in my opinion are overpriced. Redbear's Mini: $39.95 (Note: This is a uC and BLE combo). Redbear's Uno Shield: $29.95 BLEDuino: $19.95 (if part of Kickstarter) Bluegiga Shield: $69.95 After seeing these, I thought I'd try to make one; this is my bumbling process for making an Arduino Bluetooth 4.0 device at h ...

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Android talks to Arduino

This project slightly modifies the Google Android sample app called "Bluetooth Chat" so you can type a message in the Android app and that same message will appear on an LCD attached to an Arduino Uno. Functionality:  Android  talks to Arduino 1. Run the Android "Bluetooth Chat" sample app (after we modify the app in this instructable).  Type a message in the app's text box and press the "send" button.  The ...

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Serial Call and Response with ASCII-encoded output using Arduino

This example demonstrates string-based communication from the Arduino board to the computer using a call-and-response (handshaking) method. The sketch sends an ASCII string on startup and repeats that until it gets a serial response from the computer. Then it sends three sensor values as ASCII-encoded numbers, separated by commas and terminated by a linefeed and carriage return, and waits for another respon ...

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Serial Call and Response using Arduino

This example demonstrates multi-byte communication from the Arduino board to the computer using a call-and-response (handshaking) method. This sketch sends an ASCII A (byte of value 65) on startup and repeats that until it gets a serial response from the computer. Then it sends three sensor values as single bytes, and waits for another response from the computer. You can use the Arduino serial monitor to vi ...

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Simple keyboard using the tone() function using Arduino

This example shows how to use the tone() command to generate different pitches depending on which sensor is pressed.   Circuit Connect one terminal of your speaker to digital pin 8 through a 100 ohm resistor, and its other terminal to ground. Power your three FSRs (or any other analog sensor) with 5V in parallel. Connect each sensor to analog pins 0-2, using a 10K resistor as a reference to groud on ea ...

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Arduino Mega-ISP Shield

Use this shield to re-burn the bootloader for any arduino. You can always make one on a breadboard, but having a shield is great. This is great for people who works with lots of arduinos. You can also use it with AVRDUDE. I will have a parts list coming soon... (this instructable will be under development until the project is completed. Please advise thet i will not be giving support for this developing pro ...

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Arduino Button Mouse Control Code

Using the Mouse library, you can controls a computer's onscreen cursor with an Arduino Leonardo, Micro, or Due. This particular example uses a five pushbuttons to move the onscreen cursor. Four of the buttons are directional (up, down, left, right) and one is for a left mouse click Cursor movement from the Arduino is always relative. Every time an input is read, the cursor's position is updated relative to ...

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Arduino Switch (case) Statement, used with serial input

An if statement allows you to choose between two discrete options, TRUE or FALSE. When there are more than two options, you can use multiple if statements, or you can use the switch statement. Switch allows you to choose between several discrete options. This tutorial shows you how to use switch to turn on one of several different LEDs based on a byte of data received serially. The sketch listens for serial ...

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Arduino HC-SR04 How to use Ultra Sonic Sensor

Arduino HC-SR04 The Arduino HC-SR04 is different from most of those commonly seen on the market, which have 4 pins compared to 3 pins. But the operation principle is the same, transmit signal, and depends on when the signal is received to estimate the distance.   Arduino HC-SR04 not only inexpensive but also practical, use a sample AVR development boar –Arduino , with a LCD screen , you can make a easy ...

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An amplifier for Arduino

For my project, the Arduino output is not enough so digging on the net and asking to a friend some help, I managed to build an amplifier to feed my 3 computer fans. This circuit can be used as an amplifier to switch on and off a DC motor and to regulate its spinning speed with a PWM source generator. In my case the PWM generator would be the PIN 9, 10 and 11 from the Arduino board. Given that the adapter th ...

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