Raspberry Pi Meet Arduino Shield SKU:DFR0311

Introduction What happens when a Pi meets an Arduino? A simple example would be, when building a mobile robot, we use the Raspberry Pi to extend its vision and get a nice tiny monitor. Meanwhile, Arduino handle nicely with the motor driving part and delivers fast responses like obstacle avoidance. Because, without the OS, the response time of rapid changes on the Arduino is much shorter. Also the high perfo ...

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Remaking MSR206 RS232 magnetic card reader to USB

As you might have noticed, sometimes I work as freelancer in electronics =) It applies not only to fixing PC electronics and mobile phones, but also to repairing, modifying and designing my own solutions in consumer electronics. One of the projects I worked on yesterday is modifying MSR-206 magnetic card reader to replace RS232 port with USB. Let me tell you about that… This was of high urgency, so I’ve had ...

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Arm/Disarm Using a Switch

Project Description In this project I will show you how to arm/disarm an alarm zone using a tactile switch connected to your Raspberry Pi. Software Edit the globals.py file by typing the following command at the command prompt: Configure the arm/disarm variables as per figure 3: Set ArmDisarm=True Set RemoteZoneDescription equal to the description that you configured for the zone you wish to arm/disarm. If ...

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Boot the Raspberry Pi from USB

Hello world, time for me to gift some raspberry pi to the people. So here's my story, I recently graduated high school and I've been working with the school's IT guy for my senior year. When I graduated, he decided to get me the latest Raspberry Pi as a graduation present (at the time of writing this, the Raspberry Pi 2 Model B). I thought it was really generous of him and I wanted to use it. Here's the pro ...

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Build a network-attached storage (NAS) with your Raspberry Pi and an external USB hard drive.

As with all DIY projects, one of the main hassles is the enclosure to put all of the hardware in. I wanted a quick solution - didn't have the time to make something fancy. After a while I remembered that I've saved my Amazon Kindle Keyboard cardboard package. The quality of the cardboard is excellent and the construction is quite sturdy. After some measuring and layout prototyping I decided that it is quite ...

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Raspberry Pi I2C Analog-to-Digital Converter

The original plan for the Analog-to-Digital Converter was to use the Dallas 1-Wire system and use the DS2450 1-Wire Quad A/D Converter which was advertised as being a 16 bit device but after buying two of the chips which are around £5 each I found that near the end of the spec PDF they say that “In the shaded areas the accuracy is less than the resolution. The conversion results may include random noise.” W ...

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Serial hookup JeeNode to Raspberry Pi

One way to connect an RFM12B to a Raspberry Pi is to simply plug in a JeeLink, using the built-in USB capabilities of the RPi. But that’s a bit of a detour – why go through USB? Since the JeeNode’s FTDI connector can use 5V power and has TX/RX pins at 3.3V logic level, it’s actually a perfect match for directly connecting to a Raspberry Pi. Let’s do it. I’ll be using the command shell on the RPi, using a ne ...

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“Interface Keyboard Or Rs 232 With Or Without Lcd Display”.

Sabrent sbt-usc1k usb serial (9-pin) db-9 rs-232, General brand sabrent model sbt-usc1k type usb to db9 (rs-232) spec length 1 ft. connector number 2 features features converts a standard 9-pin serial port to usb. Line interactive sine wave ups system 3kva snmp 2u rack, Smartpro 230v 3kva 2.7kw line-interactive sine wave ups, 2u rack/tower, extended run, snmpwebcard option, lcd display, usb, db9 serial. Lin ...

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Raspberry Pi and 1-Wire

In this article by Jack Creasey, author of Raspberry Pi Essentials, we will learn about the remote input/output technology and devices that can be used with the Raspberry Pi. We will also specifically learn about 1-wire, and how it can be interfaced with the Raspberry Pi. The concept of remote I/O has its limitations, for example, it requires locating the Pi where the interface work needs to be done—it can ...

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Setup Raspberry Pi

Here is everything that you need to set up your raspberyPi. The Pi itself. The included power cable. An Ethernet cable. I also used an hdmi to dvi cable since my monitor did not support hdmi but any hdmi to hdmi cable would work too. Mouse keybaord Monitor The last item is the SD card with the operating system on it. Step 1: Loading OS to SD Card The OS I am using for my raspberryPi is raspbian. It can be f ...

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