SunAir Solar Power Controller for Raspberry Pi and Arduino

Ever wanted to build your own Solar Powered Raspberry Pi or Arduino system?   SunAir and SunAirPlus are 3rd Generation Solar Charging and Sun Tracking Boards designed by Dr. John C. Shovic at SwitchDoc Labs. You can use this board to power your projects and add a servo or stepper motor to allow it to track the sun using photoresistors to generate even more power! It incorporates a number of outstanding feat ...

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Using an Arduino Uno R3 as a Game Controller

Naturally, the Uno does not natively support keyboard strokes, unlike it's Leonardo brother. Most of Google will tell you you need to do some firmware workarounds and ATMEGA reprogramming just to get it working and the entire ordeal is a mess. If you're like me, you've found that out just after buying one. Here is how to get around all that using a bit of Java coding. The ideal solution would be to purchase ...

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Arduino PID Motor Controller

INTRODUCTION : The development of high performance motor drives is very important in industrial as well as other purpose applications.  Generally all high performance motor drives use quadrature encoders and PID control because of its simplicity and precise control.  The quadrature encoder acts as a feedback from the motor, it is connected to the microcontroller for furthur processing. With the use of Ardui ...

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Temperature controller for K-type thermocouple and MAX6675

After CNCPaul/LathePaul created such an awesome-looking heating chamber, the postie once again knocked on the door at Nerd Towers to deliver yet another eBay purchase - this time, it was a K-type thermistor and breakout module (basically just a MAX6675 on a board with pin headers) We  had looked online at temperature controllers but they all seemed to be quite pricey for what they were - a cheap thermistor, ...

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Daox’s diy arduino thermal differential controller

We have a great thread that contains lots of info on thermal differential controllers here. However, I wanted to start a thread dedicated to my own development of a thermal differential controller that I'll be using for my attic heat reclamation project. Tonight I setup a simple circuit that tested the operation of the differential controller and it worked great. Its very simple and adding features later on ...

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DIY Thermal Differential Controller – Part 4: Building Your Own

In our last episode, I explained how I redesigned the controller from what I first thought I was going to do. Now, I am going to explain how to make your own thermal differential controller based on mine. As it is, this setup will only control an AC load, but it would be fairly simple to convert it to run a DC load. Here is the list of parts you’ll need. I’ve added links to where I like to get parts from. A ...

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LT3795 – 110V LED Controller with Spread Spectrum Frequency Modulation

Features 3000:1 True Color PWM™ Dimming Wide Input Voltage Range: 4.5V to 110V Input and Output Current Reporting PMOS Switch Driver for PWM and Output Disconnect Internal Spread Spectrum Frequency Modulation ±2% Constant Voltage Regulation ±3% Constant Current Regulation: 0V ≤ VOUT ≤ 110V Programmable Input Current limit CTRL Inputs Linearly Adjust LED Current Adjustable Frequency: 100kHz to 1MHz Programma ...

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Small Arduino DMX controller

In this post we show you how to make a small and useful Arduino DMX512 controller, which can use by example to handle a smoke machine with DMX, or as test equipment, etc… We can use Arduino Mega, Arduino UNO, and other with small changes. Only a handful of inexpensive components are used. In the configuration shown we have 6 channels with variable values, provided by 6 potentiometers connected to the Arduin ...

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ArduDroid: A Simple 2-Way Bluetooth-based Android Controller for Arduino

UPDATES  October 30, 2013 - 7PM (GMT+2) The new official name for this app is ArduDroid and it can be installed from Google Play. I changed the name to avoid a naming conflict with another app.   September 15, 2013: I Have won a Nexus 7 tablet for this project part of a competition held by Instructables.com Thanks to everyone who voted. August 18, 2013: I have uploaded the Anrduino 0.11 alpha version with f ...

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Arduino Project 6: Web-controlled music player

Our NetPlay project is built on a standard breadboard. In our previous Arduino masterclass we briefly introduced the Ethernet Shield an Arduino expansion board that adds Ethernet connectivity plus microSD card storage. We used that storage as the basis of a simple one-button digital audio player. It was functional but limited to 8-bit mono WAV files with a 19kHz sample rate. We also gave you the software to ...

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Solar Panel Battery Charge Controller Using Arduino

This is an updated version of Solar Panel Charge Controller Using Arduino. Solar Panel Battery Charge Controller Using Arduino Pictures of Power box and Arduino solar charge regulator: Charge Regulator with Power Box Connections to Regulator Inside the Box The output voltage of the ACS712 is 2.5V with no input while the spec sheet specifies 66 to 185 mV/A output sensitivity. That's a broad range and given t ...

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Arduino Garage Controller

Although there are many garage door projects on Instructables using Arduinos, I needed/wanted something different. Last year, we had a warm summer and when I would come home after work, I would leave the garage door open about 1 foot so it could cool off. The trouble was that several nights I left the garage door open overnight :-(  So I thought, I could use an Arduino with a real-time clock (RTC) to automa ...

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