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Arduino MPPT Solar Charge Controller #17

The new voltage and current sensors on the battery side mean that Watts in and Watts out can be measured and an efficiency percentage calculated. High efficiency values (96% - 97%) are achievable when the buck converter is stepping down from 18v to 12v. With a 72-cell panel and the converter stepping 35v down to 12v, the efficiency drops to around 88%.

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Arduino progz
All about Arduino and the projects based on these awesome little boards.
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CAMdrive - Camera & Slider Controller

CAMdrive - Camera & Slider Controller | Arduino progz | Scoop.it
My project CamDrive is intended to be an open source multi-axis control for time-lapse photography.
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Make a Custom Membrane Keypad for Arduino

Make a Custom Membrane Keypad for Arduino | Arduino progz | Scoop.it

I decided to make my own Membrane Keypad.  There are a few tutorials on building membrane keypads. Most of the DIY keypads I’ve found don’t seem like they would be all that reliable nor resilient. I’m not looking for something to last forever but it should last long enough to warrant the 30 minutes of work needed to make it.

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Raspberry Pi 2 on sale now at $35

Raspberry Pi 2 on sale now at $35 | Arduino progz | Scoop.it
Raspberry Pi 2 is now on sale for $35 (the same price as the existing Model B+), featuring:

A 900MHz quad-core ARM Cortex-A7 CPU (~6x performance)
1GB LPDDR2 SDRAM (2x memory)
Complete compatibility with Raspberry Pi 1
Because it has an ARMv7 processor, it can run the full range of ARM GNU/Linux distributions, including Snappy Ubuntu Core, as well as Microsoft Windows 10.
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Cheap and Easy WiFi (IoT) Tutorial

In this video I'll show you how to get started with the ESP8266; wiring it up, flashing FW, and establishing a TCP connection to a data server
so you can post/retrieve data to/from your microcontroller.

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Arduino heart rate sensor | Bajdi.com

Arduino heart rate sensor | Bajdi.com | Arduino progz | Scoop.it
I found a little heart rate sensor @ ICstation. It is a clone of the open hardware pulse sensor. The sensor is well documented, and it comes with Arduino and Processing example code.
To try it out I connected the sensor to an ATmega328 running at 3.3V and loaded the example Arduino code. I could now see my heart beat on the Arduino serial monitor
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Sound Activated Outlet

Sound Activated Outlet | Arduino progz | Scoop.it
The Clapper was a popular gadget in the 80's and 90's. It let you turn appliances on and off just by clapping. This can be pretty useful, but it has some limitations. First there is the problem of loud noises accidentally turning the lights off. Also, you can't control multiple outlets independently of each other.
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pmclab's curator insight, February 2, 1:45 PM

Tapez des mains et la lumière s'allumera ! Dreams come true with arduino !

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Using BMP180 for temperature, pressure and altitude measurements

Using BMP180 for temperature, pressure and altitude measurements | Arduino progz | Scoop.it
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.
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Location Based Development Board

Location Based Development Board | Arduino progz | Scoop.it
I have been able to put together and complete the testing of the first prototype of my very own location based development board. So lets talk about what you’re looking at. The board is a 4 layer PCB of dimensions 50 x 68 mm. The populated board has a maximum thickness of 9 mm. I considered using a 2 layer board, but the ground planes would not have been large enough and the substrate was too thick for the micro strip trace to the antenna to be of a realistic width.  The microcontroller is running an Arduino Bootloader and the board is pictured on 7mm standoffs that are attached using M2 screws.
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Interfacing pressure sensor to arduino

Interfacing pressure sensor to arduino | Arduino progz | Scoop.it
This article is about interfacing  pressure sensor to arduino. The pressure sensor used here is SPD005G from Smartec . SPD (Smart Pressure Device) is a series of silicon based pressure sensors suitable for industrial as well as house hold applications. These sensors are generally available in plastic inline or dual inline packaging. SPD sensors are generally available in two operation modes namely gauge type and absolute type. In gauge type the pressure is measured with respect to the atmospheric pressure. There is  a small vent on the package for getting contact with the atmosphere. In absolute type, the pressure is measured with respect to vacuum. A small vacuum chamber is incorporated into the package during fabrication. Typical applications of SPD005G are medical systems, BP monitoring, air conditioning systems, process control, hand held pressure sensors  etc.
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Probably the Cheapest WIFI Computer in the World (ESP8266+LUA)

Probably the Cheapest WIFI Computer in the World (ESP8266+LUA) | Arduino progz | Scoop.it
This article describes the ESP-01, fitted with LUA firmware that is able to converse with a serial terminal in a high level language, store programs and data, turn things on and off in a package that costs almost nothing. The possibilities for ridiculously cheap remote temperature sensors and more are finally here. The software is new, the hardware is relatively new – and we need people working on software to make remote access easy. No guarantees here as I have only tested (and reported on) some of the features. Am important fix that made this practical to use only came through in the early hours of this morning – there will be bugs but at least it’s a starting point – all you have to lose is a little time.
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The Nerd Watch

The Nerd Watch | Arduino progz | Scoop.it
Hello! Welcome to another Other Machine project tutorial! I'm Sam 

The Nerd Watch displays the time in binary when the button is pushed. The watch shows the hour and minutes by flashing two LEDs in sequence to represent two 4-bit binary numbers (in big-endian format). Here's a great description of how to read binary numbers.

In this Instructable, I'll show you how to build a Nerd Watch from scratch with a few electronics components, and an OMC Othermill.

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3D printed LEGO compatible Arduino Micro Casing

3D printed LEGO compatible Arduino Micro Casing | Arduino progz | Scoop.it
Today we are going to design a LEGO compatible case for the Arduino Micro to be used together with the Arduino based LEGO power function IR-receiver mentioned in this Tutorial.
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Drums Anywhere

Drums Anywhere | Arduino progz | Scoop.it

Drums Anywhere is the simplest solution to making a great drum beat at short notice. Using two simple 3D-printed boxes that you can attach to any stick-like object, you can strike any surface to instantly output the sound of drums through your speakers. Using a clap sound for one box, and a snare drum sound for the other, Drums Anywhere can output the drum sound you want, even with accurate amplitude corresponding to the force of the hit!!

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Arduino Laser Trip Wire

Arduino Laser Trip Wire | Arduino progz | Scoop.it
For this dandy little project you'll need:

Arduino - I'm using an Arduino Uno
a 3 x 4 keypad
a 16 x 2 LCD screen
a laser module/sensor
a light dependent resistor (LDR)
a buzzer
3 x 220 ohm resistors
1 x 10K resistor
1 x 10k potentiometer (optional, it's to adjust the LCD screen brightness)
an LED
and a ton of wires!
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Windows Bean Loader Enables Arduino Programming from Surface Pro Tablets

Windows Bean Loader Enables Arduino Programming from Surface Pro Tablets | Arduino progz | Scoop.it

For the first time, you can program your LightBlue Bean from Windows!

The LightBlue Bean is Punch Through Design’s newest addition to the Internet of Things. Bean connects your physical devices to the digital world. With the Bean Loader for Windows, you can verify and upload Arduino sketches to your Bean straight from your Windows desktop.
Features
Program your Bean wirelessly via Bluetooth Low Energy
Rename and blink your Beans from inside the Bean Loader
Configure your Bean as an iBeacon
Protect your Bean using pairing pin security
View, send, and log Bean serial communications
Update your Bean to the latest firmware
Display readings from the on-board accelerometer and temperature sensor

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Cheap and Easy WiFi (IoT) Tutorial Part 2

In this video, we'll walk through how to parse data from the internet and retrieve it from your microcontroller using the ESP8266 WiFi module.
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Pixelduino - The Arduino with an awesome OLED display!

Pixelduino - The Arduino with an awesome OLED display! | Arduino progz | Scoop.it
The Pixelduino is an Arduino-compatible microcontroller that features a 1.5" 128x128 pixel color OLED screen and a MicroSD slot!
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Arduino Ultrasonic Anemometer

Arduino Ultrasonic Anemometer | Arduino progz | Scoop.it
This page serves as a directory of all my posts related to my Arduino based Ultrasonic Anemometer.
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Color Changing Mood Light

Color Changing Mood Light | Arduino progz | Scoop.it
Get in the mood with some fairly simple ATTiny85 based homemade color shifting lamps! The code is Arduino IDE compatible for easy customization.
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The Meter : Server response time meter

The Meter : Server response time meter | Arduino progz | Scoop.it
The whole idea was to create a giant meter to show website response time almost like a speedometer would. The result is something that's both fun to watch and provides a meaningful 'heartbeat' of current status. After several revisions and different designs along the way, I ended up with what you see here.
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Real-Time traffic state with Raspberry Pi in your car

Real-Time traffic state with Raspberry Pi in your car | Arduino progz | Scoop.it
This will help to see the state of roads, in live, just need to load your favorite (urban or not) traffic map.
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DIY Arduino CNC Machine with GRBL Shield

This video shows how to set up an Arduino, Stepper motors, and a GRBL Shield to create an inexpensive but powerful DIY CNC system!

The GRBL Shield is a great way to use G-Code to create an Arduino-based CNC machine, but setting up the software and wiring the hardware can be confusing! This video walks through every step of the process!
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Temperature Data Logger

Temperature Data Logger | Arduino progz | Scoop.it

A temperature data logger, is a portable measurement device that is able to recording temperature over a defined period of time automatically. The data can be retrieved and viewed after it has been recorded. In this device, the temperature will record every one minutes in CSV file.

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Sending weather data via Twitter using Rasbperry Pi and DHT22

Sending weather data via Twitter using Rasbperry Pi and DHT22 | Arduino progz | Scoop.it

The idea behind this project is connect some sensors to the Raspberry Pi and put the information available on demand via Twitter requests and put sensor history data online on the web

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Turning PC On with a Knock Using ATtiny45 and a Piezoelectric Sensor

Turning PC On with a Knock Using ATtiny45 and a Piezoelectric Sensor | Arduino progz | Scoop.it
Today’s post is something I’ve prepared for a long time. Hardware-wise it’s a simple thing – ATtiny45 emulating a PS/2 device, sending a keypress when three knocks are detected in the attached piezoelectric sensor (or piezo buzzer as they are also called). But if your computer can boot on PS/2 keyboard input and you have your computer stowed somewhere hard to reach (or just want to impress your friends), it’s a pretty neat little gadget!
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