Programming in the real world with GPIO Zero and Raspberry Pi. One of the most exciting starter activities to do with a Raspberry Pi is something you can't do on your regular PC or laptop—make something happen in the real world, such as flash an LED or control a motor.
If you've done anything like this before, you probably did it with Python using the RPi.GPIO library, which has been used in countless projects. There's now an even simpler way to interact with physical components: a new friendly Python API called GPIO Zero. Photo by Giles Booth. Used with permission I recently wrote about Raspberry Pi Zero, the $5 computer and latest edition to the world of affordable hardware. How to install MongoDB on a Raspberry Pi…Really! My 4th Pi arrived today, with an SD card pre-loaded with the O/S. Gave me the opportunity to try a ‘fresh’ config, after making several botched attempts not fully knowing what to do previously. Write the Raspian Operating System to the SD card Copy the latest O/S from the R Pi website.
If you haven’t already, get the image writer software for Windows (Download the binaries, not the source) Extract the zipped O/S archive. Find the image file from within the image writing software. Modify initial config settings On 1st boot, I changed the following default settings. Expand rootfs – expand the root partition to fill the SD cardOverscan – enabledmemory_split – how much memory should the GPU have? Change Hostname: I also changed the hostname of my Pi, each of the 5 are housed in a colured plastic case.
Change hostname to match case – keep it simple! $ sudo nano /etc/hostname - this opens up a texteditor containing 1 line. . $ sudo nano /etc/hosts Enable SSH: SSH lets you remote login to a Pi. Raspberry Pi MongoDB Installation – The working guide! - RASPBERRY PI. In this tutorial I will go through how to install MongoDb on your Raspberry Pi and also give a few tips on typical issues and fixes.
MongoDb is one of the most popular “NoSQL” databases out there. NoSQL releases you from the constraints of a typical relational database. They essentially allow you to store data in “key – value” stores which means you do not really have a typical schema as you would see in most other databases. They are often all open source and are horizontally scalable. MongoDB is said to be a document-oriented database which is designed for ease of development and scaling. Raspberry Pi Tutorials.
Light Painting with Raspberry Pi. Rasberry Pi Beginner. Binerry: (Nokia 3310/5110 Display) For some Arduino/ATmega328p/µC-based projects i’ve used a PCD8544-based Nokia 3310/5110 Display. The main advantages of this display are the low price and the simplicity of driving it. Make A Raspberry Pi Web Server. "Make A Raspberry Pi Web Server" is the 320th episode of Tinkernut and the fifth video in the "Weekend Hacker" series.
This video is the first Tinkernut episode to feature the Raspberry Pi mini-computer. Episode Summary A "Raspberry Pi" is a $35 credit card sized mini-computer. A lot of people are excited about this new platform, but what exactly can you do with it? This video shows you how to get it set up for first time use and how to turn it into a web server. What is a Raspberry Pi The Raspberry Pi is a revolutionary mini-computing system that is super cheap. Raspberry Pi There are two types of Raspberry Pi Models: Model A ($25) and Model B ($35). Since the Raspberry Pi is in such high demand, attaining one is kind of difficult. How To Set Up A Raspberry Pi Raspberry Pi Box When you first receive a Raspberry Pi, it's basically just a circuit board in a box. Installing the Operating System Win32DiskImager Unzip the Debian Squeeze file that you downloaded. Running For the First Time startx exit. RPi Tutorials. Back to the Hub.
Community Pages: Tutorials - a list of tutorials. Learn by doing. Guides - a list of informative guides. Analog Inputs for Raspberry Pi Using the MCP3008.