Arduino Bike Speedometer

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by amandaghassaei instructables.com:

Monitor your road speed using the Arduino. This project uses a magnetic switch (also called a reed switch) to measure the speed of one of the bike’s wheels. The Arduino calculates the mph, and send this information out to the LCD screen on the handlebars as you ride. It is compatible with any kind of bike/wheel, simply enter the radius of the wheel in the firmware to calibrate the device for your setup.

Arduino Bike Speedometer – [Link]

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The WiPy: The Internet of Things Taken to the Next Level

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The IoT development platform that runs Python in real time, and features the perfect blend of power, friendliness and flexibility.

A small, super low power, inexpensive, and 100% Python programmable IoT development board. The WiPy takes the wireless freedom of WiFi and combines it with the power, flexibility, and ease of use of Python. We designed the WiPy from the ground up, with one goal in mind: “Let’s make IoT development fun both for beginners and professionals”.

  • Inexpensive, small and breadboard friendly.
  • Ultra low power (850uA with the WiFi connection active)
  • 100% PYTHON PROGRAMMABLE.
  • Lots of GPIOs, interfaces and peripherals.
  • Powerful CPU and state of the art WiFi radio.

The WiPy: The Internet of Things Taken to the Next Level – [Link]

UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors

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Wireless, Credit-Card sized, Android + Linux + Arduino™, Embedded Sensors, starting from $49. What else?

UDOO Neo embodies a new concept: a single board computer suitable for the Post-PC era:

  • Like a Raspberry Pi, you can program it in any language and run a full Linux environment with graphic interfaces.
  • You get all the simplicity of an Arduino-compatible board, thanks to the Cortex-M4 and the Arduino UNO pinout layout, with the possibility of adding most Arduino™ shields, actuators and sensors, both analog and digital.
  • An incredible, smoothly-running Android 4.4.3, it gives you the possibility to build new Android-based smart devices.
  • You get a wireless module: Wi-Fi 802.11 b/g/n + BT 4.0 (Classic Bluetooth and Bluetooth Low Energy), because we hate cables.
  • 9-axis motion sensors are embedded, to build your perfect drone/robot/3D printers/whatever or create new kinds of interactions with the real world.
  • Open-source hardware: because we love to let you hack things or create new devices from scratch!
  • Starting from $49!

UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors – [Link]

DIY FPGA-based HDMI ambient lighting

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by  Scarab Hardware :

Ambient lighting is a technique that creates light effects around the television that correspond to the video content. It has been pioneered by Philips under the brand Ambilight. In this project we will create a basic FPGA-based ambient lighting system that reads the video signal over HDMI. This means we are not limited to computer output. We can use it together with DVD players, video game consoles, etc.

DIY FPGA-based HDMI ambient lighting – [Link]

Pocket USB-powered power supply for the hobbyist

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Always handy small but versatile power supply for everyday work with low-power electronic projects

Presenting USBminiPower – the pocket power supply powered from a standard USB port on your computer.

The adjustable power supply is an absolutely vital piece of equipment for any electronics engineer or hobbyist. However in the vast majority of cases the needs presented towards a lab power supply are quite relaxed and usually within the low voltage range. With the modern component base the current consumption is usually also very low, and in a number of cases a large and fancy (and of course expensive) lab power supply could just be an overkill purchase for many users.

Pocket USB-powered power supply for the hobbyist – [Link]

0-10V Voltage Monitor

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0-10V Volt monitor project has been designed around LM3914 IC, It is an easy and less expensive project which instantly visualizes voltage level. The project is based on the popular LM3194 IC from Texas instruments. Handy 0-10V DC Voltmeter can be used as a voltage tester.

The LM3914 senses the voltage level at the input pin and drives the 10 light emitting diodes based on the voltage detected on input connector. Circuit works on 12V DC. J1 Jumper is used to select the DOT mode or bar graph mode.

0-10V Voltage Monitor – [Link]

PIC 18F – 28 PIN PIC Development Board

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This is a versatile, configurable, and cost effective Development Board designed for the 18F – 28 pin series of Microcontroller from Microchip. The board is simplest form with all the Port pins terminating in a header connector for easy connection to the outside world.

PIC 18F – 28 PIN PIC Development Board – [Link]

Variable Range LED Voltmeter

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This is a variable range LED bar graph voltmeter project. It is a simple and less expensive project that displays voltage of a given source with the help of 10 LED’s. The project is based on the famous LM3914 IC from Texas instruments.

Variable Range LED Voltmeter – [Link]

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RS232 – MAX232 Interface Module

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This project provides you a simple and easy solution to connect / convert your Microcontroller input/output to be connected to the serial port of the Computer.

This projects build around popular MAX232 level shifter IC to do the Level Shifting (Voltage) between 5 V and 12 V DC.

An Onboard 9 pin female “D” connects this PCB to the Serial Port cable (not supplied with the Kit). Connector J1 connects to the Host for power supply and serial In/Out signals.

A – Provides data from the Computer to the Host (RXD)
B – Provides data to be sent to the Computer from the Host (TXD)

RS232 – MAX232 Interface Module – [Link]

Domino IO – An Open Hardware WiFi Platform for Things

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Domino.IO is an affordable and advanced WiFi hardware platform for Things, and full life-cycle services for Makers!

Are you a maker? Have you got a nice idea but could not verify it with a limited budget? Do you have a headache to design Wi-Fi products but cannot find a good support? Have you built a nice prototype ready for manufacturing but could not find the resources for mass production? This is why we launch the Domino.IO project – with everything you need to build Wi-Fi products and full life-cycle services to support your projects.

Domino.IO is a low-cost, high-performance 802.11 bgn WiFi hardware platform, with a modular design architecture, unlimited extension capabilities and Arduino compatibility. It is suitable for mass production, enhanced with full life-cycle services for makers.

Domino IO – An Open Hardware WiFi Platform for Things – [Link]