Turning the Raspberry Pi Into an FM Transmitter - Imperial College Robotics Society Wiki Steps to play sound: (Created by Oliver Mattos and Oskar Weigl. Code is GPL) sudo python >>> import PiFm >>> PiFm.play_sound("sound.wav") Now connect a 70cm (optimally, ~20cm will do) or so plain wire to GPIO 4 (which is pin 7 on header P1) to act as an antenna, and tune an FM radio to 103.3Mhz. Download the module here: [Download Now!] (this contains both source and a ready to go binary. New! sudo . How to change the broadcast frequency Run the . The second command line argument is the frequency to transmit on, as a number in Mhz. sudo . It will work from about 1Mhz up to 250Mhz, although the useful FM band is 88 Mhz to 108 Mhz in most countries. Most radio receivers want a signal to be an odd multiple of 0.1 MHz to work properly. The details of how it works Below is some code that was hacked together over a few hours at the Code Club pihack. If you're v. smart, you might be able to get stereo going! Accessing Hardware
Quick start guide What you will need Required SD CardWe recommend an 8GB class 4 SD card – ideally preinstalled with NOOBS. You can buy a card with NOOBS pre-installed, or you can download it for free from our downloads page.Display and connectivity cablesAny HDMI/DVI monitor or TV should work as a display for the Pi . For best results, use one with HDMI input, but other connections are available for older devices. Not essential but helpful to have Internet connectionTo update or download software, we recommend that you connect your Raspberry Pi to the internet either via and ethernet cable or a wifi adapter.HeadphonesHeadphones or earphones with a 3.5mm jack will work with your Raspberry Pi. Plugging in your Raspberry Pi Before you plug anything into your Raspberry Pi, make sure that you have all the equipment listed above to hand. Logging into your Raspberry Pi Once your Raspberry Pi has completed the boot process, a login prompt will appear. Read more in our documentation.
Raspberry Pi Temperature Sensor In this tutorial, we will be building a circuit to connect a temperature sensor to our Raspberry Pi, and writing a program to read the sensor data. The circuit we will build is going to connect to the Raspberry Pi using the GPIO pins. GPIO stands for General Purpose Input/Output. General purpose because all they are is simple connections that can be either high or low, a binary choice. However, this is not all that GPIO pins can be used for. Once we have built our circuit, the next step is to write a program to read the temperature, and give it to us in a nice format. Finally, we will put all these bits together to make a button controlled temperature logger—a program that will measure the temperature every second and put this in a file, which can be started and stopped by the press of a button. Step One: Updating the Kernel The first step is to change where our Pi updates from, by editing a text file. What we are doing here is making the Pi updte itself using the very latest kernel.
raspberry-pi:preparer-carte-sd Commencez par télécharger l'image de Rasbian à partir du site officiel de Raspberry, nous allons prendre la dernière version en date à savoir celle du 2012-07-15. Décompressez ensuite votre archive, vous allez obtenir le fichier : 2012-07-15-wheezy-raspbian.img Conntectez votre carte SD dans un lecteur de carte approprié puis allez dans le poste de travail pour récupérer la lettre du lecteur. Dans mon cas j'ai bien une carte SD d'approximativement 8 Go de connecté à la lettre J: Téléchargez l'utilitaire : Win32DiskImager et décompressez l'archive. Faites un clique droit sur l'icone Win32DiskImager.exe et choisissez : Exécuter en tant qu'administrateur Parcourrez votre ordinateur jusqu'à l'emplacement du fichier : 2012-07-15-wheezy-raspbian.img puis cliquez sur enregistrer . Verifiez que dans Device la lettre du lecteur trouvé dans le poste de travail ( J: pour l'exemple) puis cliquez sur : Write Cliquez sur ensuite sur Yes et patientez le temps de l'écriture sur votre carte SD. df -h /! Linux :
Raspberry Pi: Up and Running For those of you who haven’t yet played around with Raspberry Pi, this one’s for you. In this how-to video, I walk you through how to get a Raspberry Pi up and running. It’s the first in a series of Raspberry Pi videos that I’m making to accompany Getting Started with Raspberry Pi, a book I wrote with Shawn Wallace. If you’re intrigued by what you see but don’t yet have a Raspberry Pi, check out the Raspberry Pi Starter Kit in the Maker Shed. Keep an eye out for more Raspberry Pi videos in the coming months and leave a comment if there’s any particular material that you’d like to see covered in a MAKE video. Subscribe to How-Tos with Matt Richardson in iTunes, download the m4v video directly, or watch it on YouTube. Matt Richardson Matt Richardson is a Brooklyn-based creative technologist, Contributing Editor at MAKE, and Resident Research Fellow at New York University’s Interactive Telecommunications Program (ITP). Related
Raspberry Pi The Raspberry Pi is a series of credit card-sized single-board computers developed in the UK by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools. The original Raspberry Pi and Raspberry Pi 2 are manufactured in several board configurations through licensed manufacturing agreements with Newark element14 (Premier Farnell), RS Components and Egoman. These companies sell the Raspberry Pi online. Egoman produces a version for distribution solely in China and Taiwan, which can be distinguished from other Pis by their red colouring and lack of FCC/CE marks. The hardware is the same across all manufacturers. In 2014, the Raspberry Pi Foundation launched the Compute Module, which packages a BCM2835 with 512 MB RAM and an eMMC flash chip into a module for use as a part of embedded systems. Hardware Processor Performance of first generation models Overclocking RAM Networking Peripherals
RPi Easy SD Card Setup Back to the Hub Getting Started: Buying Guide - for advice on buying the Raspberry Pi. SD Card Setup - for information on how to prepare the SD Card used to boot your Raspberry Pi. Basic Setup - for help with buying / selecting other hardware and setting it up. Beginners Guide - you are up and running, now what can you do? Advanced Setup - for more extensive information on setting up. Trouble Shooting - some things to check if things don't work as expected. The Raspberry Pi will not start without a properly formatted SD Card, containing the bootloader and a suitable operating system. You will also need to choose a distribution. Some Raspberry Pi kits will come with a ready-to-go card with the distribution pre-installed, or these can be bought separately. If you don't have a pre-installed card you will need to prepare your own. Buying a preloaded SD card from a reputable supplier means that you can just plug it in and power up your Raspberry Pi; it should then just work. Using NOOBS Using Etcher
Mobile Raspberry Pi Computer: Build your own portable Pi-to-Go Aw, yes, the Raspberry Pi Computer, a credit card size mini PC that only cost $35. There are so many possibilities and uses for these small nano PCs. People have made them into PVRs (personal video recorders), retro gaming machines, weather stations, in-car PCs, jukeboxes, and so many more creative ideas. When I started this project four weeks ago, I just wanted to see if it was possible to make an ultra portable, mobile Raspberry Pi that you can take to-go. My mobile Raspberry Pi Computer is now complete and because this is an open source project I wanted to show you everything, including how to build one yourself. Just a quick blurb about myself. LCD Screen The LCD I used is from an after market backup camera system that can be installed in a car. Battery Pack First off, be very careful when messing with lithium-ion batteries. Charging the battery was easy, I just purchased an after market laptop battery charger. Internal Powered Hub Extended Storage 64GB SSD, yes I did! Operating System
Wiltronics - WiPi Raspberry Pi USB WiFi Dongle WiPi Raspberry Pi USB WiFi Dongle WiPi Raspberry Pi USB WiFi Dongle Description This WiPi dongle is a high performance, cost effective WLAN USB module, designed to connect your Raspberry Pi Computer to a WiFi local area network. The dongle uses the latest 802.11n Wireless Technology and can support data rates up to 150Mbps. It also benefits from a higher wireless LAN bandwidth, making data transmission more efficient. The WiPi also supports wireless roaming, ensuring a more consistent connection to a wireless access point. Specifications Interface : USB 2.0 Antenna : Built in smart antenna Standards : IEEE802.11n backward compatible with : IEEE802.11g and IEEE802.11b Transmission Speeds : 11b: 1/2/5.5/11 Mbps : 11g: 6/9/12/18/24/36/48/54 Mbps : 11n: up to 150Mbps Frequency : 2.4 to 2.4835GHz Working Channels : 1 to 13 Transmit Power : 20dBm (max) Security Features : WPA PSK/WPA2 PSK : 64/128/152bit WEP encryption Operating System
Configurer la Raspberry sans écran François, Si vous avez accès à votre routeur, vous pouvez utiliser votre routeur pour trouver l'adresse IP de votre RPi, qui devrait être acquis via DHCP. Vous pouvez ensuite SSH à l'aide d'un programme appelé PuTTY. Cela vous permet d'obtenir une fenêtre de console et vous pouvez commencer à configurer le serveur VNC pour exécuter au démarrage. Ensuite, vous pouvez utiliser VNC pour accéder à l'interface graphique de votre RPi. Je n'ai pas mon RPi relié à un moniteur, et l'utiliser exclusivley via SSH et VNC. Quant à la carte mémoire, ne vous inquiétez pas à propos de ce que vous voyez dans Windows. Amusez-vous! PS: j'ai utilisé Google Translate pour prendre votre message du français à l'anglais, puis d'écrire cette réponse. There are 10 types of people in this world.
Pi NXT Robot Inspired by the amazing things the Boreatton Scouts group are doing with their Raspberry Pis, as well as a conversation with David Lamb and Andrew Attwood – two colleagues of mine at LJMU – I thought it was about time I actually tried to use my Pi for something other than recompiling existing software. I'm not a hardware person. Not at all. But after reading about how it's possible to control the NXT brick with Python using nxt-python, and with David pointing out how manifestly great it would be to get the first year undergraduates learning programming using it, I couldn't resist giving it a go. It turned out to be surprisingly easy. I'm not exactly sure why I bought such a huge lead given I knew it would all end up on top of the robot, but that's planning for you! The result really is as crazy and great as I'd hoped. It was also possible to read data from the sensors, allowing the robot to drive itself entirely autonomously around the room avoiding objects and generally exploring.
Hacking a Raspberry Pi into a wireless airplay speaker - Jordan Burgess The raspberry pi is fully functional credit card-sized computer that is cheap enough ($25) that it can be used just for a single purpose. With this hack the computer imitates an airplay speaker, making it possible to send songs over to an old stereo wirelessly from your phone. The Raspberry Pi generated massive hype in nerdy circles this summer when it came out and we’re beginning now to see some amazing hacks from this tiny computer now. I’ve had mine for a few months now but I hadn’t got around to using it yet. A possible way to do this would be to buy an Airport Express or an Apple TV and connect the audio out to the stereo. Here’s a video of it in action. How to fake airplay compataility To get a Raspberry Pi looking like an airplay receiver I made use of Shairport. I’ll condense this down to the bare instructions for a working outcome. As a word of warning, one of the common pitfalls I encountered was with the very narrow acceptable power range of the RPi. Raspberry Pi Graphical method