Simulink Offers Easy, Graphical Programming for Raspberry Pi & Arduino

Every hardware hobbyist has experienced that painful moment when you smell smoke and discover that it's coming from your hardware project. It's a rite of passage. Wouldn't it be nice if you could test your hardware before burning it? At the Open Hardware Summit, held in Boston recently, I saw that MathWorks' Simulink offers an appealing alternative that allows you to debug your model (embedded software) bef ...

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Raspberry Pi GPIO driving Servo

I have experimented with GPIO on the Raspberry Pi, just turning an LED on and off here. But since then Ben Croston has improved the RPi GPIO Python library to do most of the work in C and I can confirm that it is a lot faster. Driving servo motors requires precise timing, so I decided to see how the Pi would perform this task. Here is a video of the servo in action. It is set to stay on the left for a few s ...

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ICStation 16 Music BOX DIY Kit Sound Module

1.Features 16-tone box under your control, arbitrarily issued 16 kinds of interesting analog sound, both an electronic toy can also be used as a doorbell or alarm. 2.A suite of profiles: Kit Model: BOX-16 Operating voltage :4.5-5V PCB size: 48mm (length) * 42mm (wide) Control modes: manual coding + external coding 3.Circuit principle The main part of the whole circuit is the 9561 4 tones integrated circuit, ...

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What is a serial-to-parallel shift register?

A serial-to-parallel shift register (or SIPO: Serial In Parallel Out) lets you take a sequence of signals on one output, and split them up into several separate outputs. For example, if you don’t have enough GPIO pins on your Raspberry Pi, Arduino, or other computer/microcontroller, you can use a shift register to add more. In this post, I’ll be looking at the 74HC595, which is an 8-bit SIPO IC (i.e. it giv ...

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DIY диммер: guidebook to components

n the recent past we shar the complete set of gerber-files with our expensive readers. That all interested persons ha possibility to order to themselves printed-circuit boards. As it are inexpensive, as it were ma by us. Today we taken the following step. We published the complete specification of the electronic components us in ours DIY диммере. We tr, that this specification becoming clear even to the mos ...

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Browse Anonymously with a DIY Raspberry Pi VPN/TOR Router

Surf the Internet securely with your very own portable WiFi VPN/TOR router. You can configure a Raspberry Pi with Linux and some extra software to connect to a VPN server of your choice. The VPN connection encrypts your internet traffic so that hackers and spies can’t figure out what web sites you are visiting, and the web sites you are visiting can’t tell which computer you are surfing from. The router is ...

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How to drive Dynamixel AX-12A servos (with a RaspberryPi)

I decided to use some Dynamixel AX-12A motors for a project, and ended up having to code a library for them, so I figured I would share what I learned. Despite being a bit more expensive, this motor has a couple of advantages over the more commonly found TowerPro motors. Mainly, the Dynamixel motors are stronger, daisy-chainable, and have a robust control system with feedback that reports position, temperat ...

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Raspberry Pi simple blog server.

Step 1: Name change to protect the innocent. You will want to change the name of your Raspberry Pi or you might get another server from the web. Also I am sure you have already set up your router to set the raspberry pi address. See your router manual on how to do that. $ sudo hostname Add oeraspberrypi to the list. Use ifconfig to get your ipaddress of the RPi $ ifconfig eth0 Link encap:Ethernet HWaddr xx: ...

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How to Create Buttons in Qt

In this project the Raspberrypi board is loaded with Ubuntu and is remotely accessed using VNC. The Raspberrypi board is also connected to the internet. Downloading and installing the fourth version, QT4 using commands are already discussed in a previous article. There is another article which discusses about how to start with programming in QT, a hello world program using QT. The list includes “Qt 4 Assist ...

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picoReflow

Raspberry Pi Supported SPI driven Cold-Junction K-Type Thermocouple converter: MAX31855 MAX6675 GPIO driven Solid State Relays (230V heating/fan) PWM driven MOSFET (12V cooling) Python control daemon (running on the Pi) HTML5/Websocket OS independent multi user web-client Live Monitoring & control Browser based Profile/Curve Management + Slope Calculator At this point (although still only a PoC-Demonstr ...

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