Category: Arduino

How to Power an LED (Arduino vs. Pinguino)

LED Power Source

How to Power an LED (Arduino vs. Pinguino) might seem silly, however, if you take a look at the following graphic, you will hopefully notice something interesting. The Pinguino sources the power to the ‘user’ LED differently that does an Arduino. The Pinguino wiring is represented by the green LED and the Arduino wiring is …

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I2C Wire Chat Between Two Arduinos

Arduino 2Wite Chat

Someone asked me the other day if it was possible to have a ‘chat’ between Arduinos using the I2C Wire library. I came up with  ‘proof of concept’ code called ‘I2C Wire Chat Between Two Arduinos’. Here is the sketch: I2C Wire Chat Between Two Arduinos

Setup two Arduinos connected by a length of …

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Arduino as a Network Monitor

I have set up an Arduino as a Network monitor so I can be silently alerted if a WEB server on the LAN/Internet goes down. In a previous post, here, I show the relay circuit I am using in this sketch to flash a CFL lamp. This sketch also uses the same ENC28J60 module to …

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Emergency Phone Call Alert to an Arduino via an Asterisk PBX

S108T02 Relay Circuit

Recently, I created this simple circuit (and corresponding code) which makes an emergency phone call alert to an Arduino via an Asterisk PBX.  This project was for someone who needed to be alerted (silently) if someone made an emergency phone call on their Asterisk PBX. By the way, the free and open source Asterisk PBX …

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Controlling and Monitoring an Arduino Galileo via Node.js

Galileo_Cordova

It is very handy to be able to control and monitor things with an Arduino. It is even more handy when you can control and monitor things remotely from wherever you are via the Internet. For arguments sake, lets say we want to both control specific devices we have attached to our Arduino and we …

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PCDuino Lite – An Arduino with more Power and Flexibility!

pcDuino Lite

For certain Arduino like projects, you might need more CPU power or the flexibility of running Linux ‘on board’. Besides the Arduino Galileo you might consider another device outside the Arduino family, something like the PCDuino from LinkSprite. I recently experimented with a PCDuino Lite which has 512 MB DRAM, a 1GHz ARM Cortex A8 …

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Automated AP-List Scanner for the ESP8266

I recently posted about using the nRF24L01 module to scan for channels in the 2.4GHz range. That will let you know what channels are in use, however, since the nRF24L01 does not have the embedded network stack, we can’t determine other things like what the ESP8266 module can. (Have you checked out the Espressif.com ESP8266 …

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Using an nRF24L01 Module to Scan the 2.4GHz Frequency Range

nRF24L01

There is a lot of electrical ‘noise’ all around us that we can’t see or sense as humans. However, in this day and time we have a great number of electronic devices which can sense what we can’t. Actually, it is these vary same electronic devices in most cases which are the cause of all …

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Arduino Galileo

Arduino Galileo

I have been experimenting lately with the Arduino Galileo from Intel. It is not a new Arduino board as it was introduced back in October of 2013. This Arduino has an Intel Quark single-core 32 nm X1000 SoC with a clock rate of up to 400 MHz.  It has several interfaces, including PCIe, UART, I2C, Fast Ethernet, …

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A Python script to run the Arduino MiniPirate Sketch

A while back I wrote about the BusPirate. You can view that post here. In it, I mention an Arduino sketch called the “MiniPirate” which allows you  to try some of the functions of the BusPirate on an Arduino. Over time, I have found that sketch to be very useful. You can use it to …

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