recently purchased the trinket powered neopixel goggles. Came with the 5v trinket.
Got everything wired and soldered. had some initial issues with programming it.. originally used my arduino IDE to upload sketch (or tried) but got so many errors I didnt even want to count them..
Ended up installing the trinket IDE.
Seem to upload to the trinket okay and only had one error:
Binary sketch size: 3,438 bytes (of a 5,310 byte maximum)
avrdude: usbdev_open(): did not find any USB device "usb"
Followed the directions on the site.. pressed the button on the trinket, the red light flashes and hit the upload sketch button.
it compiles and uploads.. dont know if it is supposed to or not but the red light stops blinking maybe about halfway during the process..
When I disconnect from usb and connect the charged battery, nothing happens. Initially when I plug the battery into the board a couple of the (blue) leds on each ring flash very briefly and weakly.
Code: Select all
// Low power NeoPixel goggles example. Makes a nice blinky display
// with just a few LEDs on at any time.
#include <Adafruit_NeoPixel.h>
#ifdef __AVR_ATtiny85__ // Trinket, Gemma, etc.
#include <avr/power.h>
#endif
#define PIN 0
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(32, PIN);
uint8_t mode = 0, // Current animation effect
offset = 0; // Position of spinny eyes
uint32_t color = 0xFF0000; // Start red
uint32_t prevTime;
void setup() {
#ifdef __AVR_ATtiny85__ // Trinket, Gemma, etc.
if(F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif
pixels.begin();
pixels.setBrightness(85); // 1/3 brightness
prevTime = millis();
}
void loop() {
uint8_t i;
uint32_t t;
switch(mode) {
case 0: // Random sparks - just one LED on at a time!
i = random(32);
pixels.setPixelColor(i, color);
pixels.show();
delay(10);
pixels.setPixelColor(i, 0);
break;
case 1: // Spinny wheels (8 LEDs on at a time)
for(i=0; i<16; i++) {
uint32_t c = 0;
if(((offset + i) & 7) < 2) c = color; // 4 pixels on...
pixels.setPixelColor( i, c); // First eye
pixels.setPixelColor(31-i, c); // Second eye (flipped)
}
pixels.show();
offset++;
delay(50);
break;
}
t = millis();
if((t - prevTime) > 8000) { // Every 8 seconds...
mode++; // Next mode
if(mode > 1) { // End of modes?
mode = 0; // Start modes over
color >>= 8; // Next color R->G->B
if(!color) color = 0xFF0000; // Reset to red
}
for(i=0; i<32; i++) pixels.setPixelColor(i, 0);
prevTime = t;
}
}most of the connections look okay.. although after seeing the pics I did notice a couple of pads that were not completely covered. But I have gone back and corrected those.. The insulation on those wires are so heat sensitive. tried to be as quick and thorough as I could be without melting back the insulation too far.
- Left Eye back NPR.jpg (964.04 KiB) Viewed 957 times
- Left Eye front NPR.jpg (955.04 KiB) Viewed 957 times
- Right Eye back NPR.jpg (981.35 KiB) Viewed 957 times
