Instructions: bit.ly/rhinotofullspectrum
All posts by nfreed
Making Multiple Events (Appear To) Happen at the Same Time in Arduino
There are many ways to do this! Here are a few examples:
Counters that increase at different rates
Fading all the LEDs on the D&T lamp boards
Explanation: On the D&T lamp boards, only pins 5, 6, 9, 10, and 11 (not 7, 8, or 12) are “PWM enabled” and work with the analogWrite function. Built into the hardware on those pins is a way to toggle very quickly between on and off, leading to a dimmer or brighter LED, depending on the ratio of “on” times to “off” times.
However, it’s possible to replicate this effect in software, which is what the SoftPWM Arduino library does.
//Modified from SoftPWM library example at: https://code.google.com/p/rogue-code/wiki/SoftPWMLibraryDocumentation#Usage_Example //SoftPWM library must be installed //NF for Design & Technology at LWHS Dec 2014 (modification: added all D&T "sleepyBoard" lamp board pins) //Explanation: On the D&T lamp boards, only pins 5, 6, 9, 10, and 11 (not 7, 8, or 12) are "PWM enabled" and work with //the analogWrite function. Built into the hardware on those pins is a way to toggle very quickly between on //and off, leading to a dimmer or brighter LED, depending on the ratio of "on" times to "off" times. //However, it's possible to replicate this effect in software, which is what the SoftPWM Arduino library does. //Todo: LED 5 is not fading! What can you change in the code to include it? //Challenge 1: can you made the LEDs fade at different rates? //Challenge 2: can you made the LEDs flicker like candles? #include <SoftPWM.h> int fadeInTime = 2500; //time in milliseconds that it will take the LED to fade in from 0 to 255. int fadeOutTime = 2000; //time in milliseconds that it will take the LED to fade out from 255 to 0. void setup() { // Initialize SoftPWMBegin(); for(int pin=5;pin<=12;pin++) { // Create and set pins 5-12 to off SoftPWMSet(pin, 0); // Set fade time for pins 5-12 SoftPWMSetFadeTime(pin, fadeInTime, fadeOutTime); } } void loop() { // Turn on the pins - set to 100% for(int pin=6;pin<=12;pin++) { SoftPWMSetPercent(pin, 100); } // Wait for LED to fade in delay(fadeInTime); // Turn off the pins - set to 0% for(int pin=6;pin<=12;pin++) { SoftPWMSetPercent(pin, 0); } // Wait for LED to fade out delay(fadeOutTime); }
Exporting from Processing to Trace and Cut on Silhouette Cameo
Adding ControlP5 Sliders to Make Parametric Designs
How to use sliders from the ControlP5 library for Processing to dynamically change on-screen designs.
+ how to use background colors.
+ where to look up more ControlP5 features.
Link to code (with some added comments): gist.github.com/nataliefreed/ef0f9d9eb34875bf27b2
Make drawn shapes mouse-draggable in Processing
DraggableCircle example code used in the video can be found here: gist.github.com/nataliefreed/9633499