In this post of the Raspberry PI series we look at what is required to setup a Raspberry PI 2 after the initial Raspbian setup. It assumes you have completed “sudo atp-get update” and “sudo apt-get upgrade” or that you install is up to date and you can SSH into the PI from a console using TeraTerm or Putty (Or your own favourite SSH) app.
The process shows how to install and test all the various libraries we will need for the up coming tutorials on adding devices to the PI2 GPIO connector including I2C chips like ADCs and DACs, SPI devices like the 16bit port expander “23S17” from microchip and many others.
Just so you don’t feel like its all install and no practical, In this video I also show how to connect and use a simple one wire device, the DS18B21 from Maxim : http://datasheets.maximintegrated.com/en/ds/DS1821.pdf
One of the libraries we will install is wiringpi by Gordon Henderson : http://wiringpi.com/ a great set of libraries with support for an ever growing set of devices and allowing you to program in C but with the feel that you may be used to with an Arduino. More on this in future episodes
Another source of inspiration is the Adafruit tutorial series, they have done a great job creating these and you should go have a look: Learn @ Adafruit and for the temp sensor, adafruits raspberry-pi lesson 11 ds18b20 temperature sensing
At time of posting I have already filmed the next instalment where I will show you how to control an ADC (ADS1115 – quad 16bit from TI), and two DACs (DAC8574 – quad 16bit, DAC8571 – Single 16bit) it will be posted as soon as I’m done editing it
This preparation will flow into my Power supply project down the road as an example of how to integrate a reasonably powerful controller to the Analogue power system.
An added component in the design will also be a barrier I2C device to provide isolation between the PI and the Power side. Stay tuned
Raspberry Pi Alternate Options: How Come They Are a Greater Buy
Raspberry Pi is not the baddest tiny PC in the market, and it is what its contenders are attempting to notify the remainder of the world. Now and then, a fresh mini computer is launched out there promising to be the biggest one to take down Raspberry Pi. To put it accurately, there’s a new Raspberry Pi killer called NanoPi M1 Plus, which is Ubuntu-Linux ready and costs $30.
The Raspberry Pi is introduced with 4 variations as time goes by. These consist of Raspberry Pi Model B+, Pi 2 Model B, Zero, and the most up-to-date which is Pi 3 Model B.
Pi 3 is built to make sure that Raspberry Pi could gratify anybody with a low-cost PC for developer work. It has replaced CPU with the Cortex A53, Hackaday suggested, and runs on 1.2 GHz. At $35, the Raspberry Pi is the most widely used of all.
The Raspberry Pi, on the other hand, is not the single single board computer(SBC) for homebrewed projects. There are a number more for sale that entails lower cost, and then some that can do more than Raspberry Pi for a little more, ZD Net declared.
To start with, there is the Omega 2, that includes a modular nature granting developers to attach Wireless bluetooth or Global positioning system unit comfortably. It has in-built Wi-Fi and flash storage space; the Operating-system is Linux distro based upon the OpenWrt system. The Omega 2 will cost you $5 and can easily operate on FreeBSD Operating system, which describes why it really is best for students.
The BBC Micro:bit will cost you $16 and is excellent for school students for their exercising and prototyping projects. A 32-bit ARM Cortex cpu energizes it from inside and it excels from the competition because of its 5×5 LED matrix. This function gives you 25 separately programmable red Led lights for basic output.
There is also the BeagleBone Black, which will cost you $55 and like the Raspberry Pi, is additionally a community-supported platform both for enthusiasts and builders. It truely does work quick; it can boost Linux in lower than 10 seconds and can develop in less than 5 minutes. It’s powered by AM335x 1GHz ARM Cortex-A8 and 512MB DDR3 RAM.
Someone else is the NanoPi M1 Plus, which was named as the most recent Raspberry Pi killer. Priced at $30, it promises to have a more robust design and layout and was competent to combine key options like Wi-Fi and Wireless BT. In addition, it consists of an Infrared receiver, mic, 8GB memory space, and power and reset control buttons.
Yet, the best feature of NanoPi M1 Plus is its power to run Ubuntu-Mate, Ubuntu-Core, as well as Debian, Beta News suggested. It’s excellent for business users, coders, fans, and school students.
FriendlyElec roll-outs Ubuntu Linux-ready NanoPi M1 Plus – a $30 Raspberry Pi substitute
Learn more on official webpage: http://www.friendlyarm.com/index.php?route=product/product&product_id=176
There is a new Raspberry Pi rival that is quite economical. Believe it or not, some folks might regard it as a Pi substitute. The $30 FriendlyElec NanoPi M1 Plus has an arguably remarkable design and layout, plus important incorporated features just like Wi-Fi and Bluetooth.