Mar 052015
 
How does chipKIT Uno32 know when the button is pressed... By Polling or Interrupts?

How does chipKIT Uno32 know when the button is pressed… By Polling or Interrupts?

If you’re new to microcontrollers and you want a quick overview for using polling or interrupts in your sketch, Digilent has just the blog post for you! In this post, James explains the differences between using polling vs. interrupts to determine when an input (like a button press) has occurred.
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Mar 042015
 
Light painting with chipKIT uC32 and LED strip

Light painting with chipKIT uC32 and LED strip

You have to admit, light painting is WAY cool, even if you’ve just done it low-tech style with a flashlight. But on Digilent’s blog, you can learn how to light paint in a more “high-tech” way, if you will, with an LED strip (WS2812 LEDs) and a chipKIT uC32! Check it out!

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Feb 272015
 
PSoC Capacitive Touch Sense Pad connected to PSoC board

PSoC Capacitive Touch Sense Pad connected to PSoC board

If you didn’t get a chance to check out last weekend’s Hackathon, held at ASU Polytechnic campus, check out Vageesh’s summary! Using a chipKIT uC32 and capacitive-sensing technology, his team began developing a hand-held object modeler/scanner. Read more about it on his blog!

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Feb 262015
 
chipKIT Cmod Pin Mapping

chipKIT Cmod Pin Mapping

If you haven’t checked out the chipKIT Cmod, by Digilent, you might want to. In this post, Larissa points out why she thinks the Cmod is the best chipKIT board for prototyping. She has one caveat, though: she never knows which pin is which. Enter the “chipKIT Cmod Pin Map,” and voila; you are all set to prototype!

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Feb 192015
 

Did you ever watch Star Trek and wish you had your very own Tricorder? Well, even if you can’t buy one right now, you can at least find solace in the fact that it exists as an open-source project. Peter Jansen believes in a world where we can learn and care about our environment by using such tools, so he put together the Arducorder, an Arduino-compatible sensing device (Tricorder), using a chipKIT Max32 and a collection of sensor boards, along with Arduino-compatible libraries.

So if you didn’t catch it on Hackaday, check it out now!

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Feb 182015
 

Have you ever wondered if you could control a stepper motor’s speed and direction using an RC servo controller (for example from the stick of a RC airplane transmitter)? Wonder no longer – using a Fubarino Mini and a Big Easy Driver stepper motor controller, Brian Schmalz was able to write a simple sketch to enable precise control of a stepper motor from an RC servo input signal.

This sketch uses a 32-bit hardware timer and output-compare module on the PIC32 so that very accurate step speeds are generated. Step speeds from 1 step per second to over 12,000,000 steps per second can be configured using #define values in the sketch. There is also a configurable dead zone in the stick’s center position.

One advantage of this type of control system over a simple DC motor controller is that the speed of the stepper is not dependent on the load (to a point), so you can very accurately control the speed of whatever you are moving even if the load torque changes over time.

Check out the simple video of this sketch in action:

For complete instructions on how to duplicate this setup, see the complete description here on Brian’s site: RC Servo to Stepper Sketch

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Feb 172015
 
chipKIT Pi Development Board

chipKIT Pi Development Board

If you are an experienced Raspberry Pi® user, check out this resource page for the chipKIT™ Pi expansion board. It includes some useful pinout tables as well as instructions for programming the PIC32 MCU using native tools on the Raspberry Pi.

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Feb 162015
 
Connect-Pi System: Remote Automation for Arduino-type systems

Remote Automation for Arduino-type systems

Another cool Kickstarter is under way! It’s called Connect-Pi, and it combines a Raspberry Pi web server and a responsive, mobile web application to create an automation system, allowing the user to control and monitor Arduino-type systems from anywhere in the world. Connect-PI allows you to connect up to 10 devices out of the box but you can add more devices by simply configuring the IP addresses of the new devices. Currently, Connect-PI libraries are tested for Arduino Uno boards, but they are portable to any microcontroller-based platform (including the chipKIT platform)!

Why not check it out?!

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Feb 122015
 
Digilent Learn - Debouncing Circuits with chipKIT Uno32 Microcontroller

Circuit with a button and an LED – Learn how to Debounce with chipKIT Uno32

Digilent’s Learn site provides tutorials for learning various hardware and software concepts, and you can choose “projects” (tutorials) based on topic, difficulty, or your personal area of interest. They also group projects together to form modules of related content, and they group modules to form courses, which are structured like college courses.

Today we’re sharing their “Debouncing Circuits with Microcontrollers” module, providing four distinct ways to learn how to debounce circuits, with chipKIT Uno32, whether in your software sketch, by using a library, via RC filter, or with force buttons.

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