Twilio Signal 2015: Video of my Talk

My Talk at Twilio’s Signal 2015 Conference, Using your web development skills to build Twilio-powered apps for Android and iOS, is now up as a video. If you’re interested in adding voice to your mobile apps using the Twilio Client Plugin for PhoneGap, this video is a short intro to the topic. If you have any questions about mobile app development with Twilio, I’d be happy to talk about it!

LittleBits/Matrix Color Rotator Code for Twilio Signal HackPack

I made my twitter handle scroll across the screen, changing colors as it goes – pretty simple effect, but here’s the Arduino code:

#include <Adafruit_NeoPixel.h>
#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>

#define PIN 1

Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(8, 8, PIN,
NEO_MATRIX_TOP + NEO_MATRIX_RIGHT +
NEO_MATRIX_COLUMNS + NEO_MATRIX_PROGRESSIVE,
NEO_GRB + NEO_KHZ800);

void setup() {
// put your setup code here, to run once:
matrix.begin();
matrix.setTextWrap(false);
matrix.setBrightness(30);
matrix.setTextColor( matrix.Color(0, 0, 255) );

}

int x = matrix.width();

int colorRotator = 0;

void loop() {
// put your main code here, to run repeatedly:
matrix.fillScreen(0);
matrix.setCursor(x, 0);
matrix.print(F("@jefflinwood"));
if(--x < -70) {
x = matrix.width();
colorRotator++;
}
if (colorRotator > 3) {
colorRotator = 0;
}
if (colorRotator % 3 == 0) {
matrix.setTextColor( matrix.Color(0, 0, 255) );
} else if (colorRotator % 3 == 1) {
matrix.setTextColor( matrix.Color(0, 255, 0) );
} else {
matrix.setTextColor( matrix.Color(255, 0, 0) );
}
matrix.show();
delay(100);
}

Built In Austin and BurntX run articles about UT Apps Demo Day

UT Apps Demo day is tomorrow, but the students’ mobile app demos have already gotten some press!

First up is Built in Austin, with an article titled 6 apps to debut at UT Austin App Demo Day.

Next is burnt x, with Six Apps Made For UT Students By UT Students.

I’m really excited for tomorrow’s UT Apps Demo Day – I’ve seen all of these students form groups, work through issues, and go from concept to working app all in one semester (on top of all their other classes).