background preloader

Which Board is Right for Me?

Which Board is Right for Me?
For a few months after Raspberry Pi came out, the choice was pretty simple. If you wanted to talk to arbitrary electronics, your best bet was to buy an Arduino microcontroller board; if you needed the power of an ARM-based processor to run Linux, the Raspberry Pi single-board computer (SBC) was the obvious choice (that is, if you could get your hands on one. Delivery issues are mostly resolved, but last year some people waited more than six months for their Pi). Before Arduino and Raspberry Pi, things were more complicated. Going forward, things aren’t just complicated again — they’re bewildering. We’re now seeing an explosion of new boards coming to market, and there’s no reason to expect the trend to slow in the next year or two. Life Before Arduino The commercial microcontroller story starts, arguably, in 1971, with the arrival of the 4-bit Intel 4004. Still available off-the-shelf today at less than $2 a chip, the PIC is a workhorse. The March of Arduino The Tessel The LaunchPad MSP430

Related:  Electronics 2DronesUseful Info

How to Connect Multiple Switches to one Microcontroller Pin - Hacked Gadgets - DIY Tech Blog When using microcontrollers you would normally connect one button to one input. What to do if you are running out of inputs and still have a bunch of buttons to monitor? This clever trick uses the analog input that many microcontrollers have available to monitor the buttons on a single input by having them put a different voltage on the pin based on which one is pressed. Via: Electronics Lab “The theory of connecting multiple switches on a single ADC input channel is very simple. One end of each switch is connected to the power supply voltage through an individual pull-up resistor, whereas the other end is grounded through a common resistor. What does the ring on ESC do? - The Ferrite Ring If you have used ESCs for example the Hobbyking 30A ESC, you might notice the cable is wound around a little doughnut ring. So What does it do? And do you need this ring and is it necessary? This mysterious ring is called the ferrite ring or ferrite bead.

Top 40 Useful Sites To Learn New Skills The web is a powerful resource that can easily help you learn new skills. You just have to know where to look. Sure, you can use Google, Yahoo, or Bing to search for sites where you can learn new skills , but I figured I’d save you some time. Raspberry Pi Model B+ – Raspberry Pi Projects Using Model B SD Cards On The Model B+ SD cards should be interchangeable between a model B and a model B+ as long as the card was created since the release of the Model B+, or has been inserted into a model B since the B+ was released and these commands entered to update the OS and any other packages supported by apt-get: sudo apt-get update […] Read More →

10 Great Arduino Projects for Beginners Advertisement Completing an Arduino project gives you a sense of satisfaction like no other. The problem is, most beginners aren’t sure where to start, and without previous Maker experience, or some sort of electronics background, even beginner’s projects can seem rather… well, daunting. Today we’re going to feature 10 simple projects that even the most novice of Arduino DIY’ers can build without the need for expensive add-ons, or hard-to-find parts. To get started, all you’ll need are the items that come in most Arduino starter kits, such as: SPI Master / SPI Slave via PIC - Introduction Another widely used serial communication protocol aside from RS232 serial and I2C is called SPI, short for serial peripheral interface. SPI is extremely similar to I2C and infact many SPI devices can also read and write I2C on the same communication lines. SPI interfaces can be found in devices like sensors, motor controllers or virtually anything digital and low speed. In this tutorial the two types of SPI devices that exist in the world will be introduced: the SPI Master and the SPI Slave. The SPI Master controls the flow communication on the dataline while SPI Slave waits for contact from the Master before reading or writing data.

How to choose Motor and Propeller for Quadcopter and Multicopter You won’t believe how much maths and aerodynamics are involved when the engineers are designing the propellers and motors. Therefore you know how difficult it is to choose the best motor and propeller combination for your quadcopter for best performance. Fortunately this is not a new subject, and there are so many people shared their experience about this. Also there are some general rules you can follow to choose the optimal and effective motor and propeller combination. As part of the quadcopter tutorial I will share some information for beginners about how to choose motor and propeller for quadcopter, which also applies to other types of multicopter. Here is a guide about the types prop adapters for your motors, and the pros and cons you might be interested.

300+ Awesome Free Internet Resources You Should Know Ali Mese is a freelancer, wanderer, and contributor to few startup projects. Say hi on Facebook or Twitter. This post originally appeared on his Medium blog. PIC Interrupts vs. Polling - Introduction Project Info Author: Chris Difficulty: Easy-Medium Time Invested: 1 Hour Prerequisites: Take a look at the above tutorials before continuing to read this tutorial. After you've been studying and learning about embedded systems, microcontrollers and low level programming for a while, one concept you will undoubtedly cross is the topic of interrupts. Interrupts are used to interrupt the main program cycle to perform a quick and higher priority task so they are typically used when more than 1 input and output exists. Where to mount ESC - Quadcopter Arms Or body - Multirotor RC A very frequently asked question is: Do you mount your ESCs on your quadcopter amrs or body? Personally I like to put the ESCs on the arms for various reasons, some people might disagree. Anyway I think it’s more or less a personal preference, here I will list the arguments for both sides. When putting the ESCs under the arm or on the arm, it’s easier to manage and replace.