Brasil
Bike riding is good, but with LEDs is even better. Bike POV is a luminous device that drawings on bicycle wheel as it rotates. It is made with an Arduino, 11 LEDs that can be of any color and a control button to switch the drawn patterns.
Materias:
1 Arduino
11 LEDs
11 Resistors 12R
1 Resistor 10K
1 Pushbutton
1 Switch
28 Pin Male Header
1 9V battery
1 9V battery socket
Tools:
Soldering iron
Cutting pliers
Circuit:
Arduino Code:
// defining the picts
int off[] = {
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0};
int heart[] = {
0,0,0,0,0,0,0,0,0,0,0,
0,0,1,1,1,1,0,0,0,0,0,
0,1,1,1,1,1,1,0,0,0,0,
0,1,1,1,1,1,1,1,0,0,0,
0,0,1,1,1,1,1,1,1,0,0,
0,0,0,1,1,1,1,1,1,1,0,
0,0,1,1,1,1,1,1,1,0,0,
0,1,1,1,1,1,1,1,0,0,0,
0,1,1,1,1,1,1,0,0,0,0,
0,0,1,1,1,1,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0};
int greek[] = {
1,1,0,0,0,0,0,0,0,0,0,
1,1,0,0,0,0,0,0,0,0,0,
1,1,0,0,1,1,1,1,1,1,0,
1,1,0,0,1,1,1,1,1,1,0,
1,1,0,0,1,1,0,0,1,1,0,
1,1,1,1,1,1,0,0,1,1,0,
1,1,1,1,1,1,0,0,1,1,0,
0,0,0,0,0,0,0,0,1,1,0,
0,0,0,0,0,0,0,0,1,1,0,
1,1,1,1,1,1,1,1,1,1,0,
1,1,1,1,1,1,1,1,1,1,0};
int butterfly[] = {
0,0,0,0,0,0,0,0,0,0,0,
0,1,1,1,1,0,1,1,1,1,0,
0,1,0,0,1,0,1,0,0,1,0,
0,0,1,0,1,1,1,0,1,1,0,
1,1,1,1,1,1,1,1,1,1,1,
0,1,1,0,0,0,0,0,0,0,0,
1,1,1,1,1,1,1,1,1,1,1,
0,0,1,0,1,1,1,0,1,1,0,
0,1,0,0,1,0,1,0,0,1,0,
0,1,1,1,1,0,1,1,1,1,0,
0,0,0,0,0,0,0,0,0,0,0};
int chakana[] = {
0,0,0,0,1,1,1,0,0,0,0,
0,0,1,1,1,0,1,1,1,0,0,
0,0,1,1,0,0,0,1,1,0,0,
0,1,1,0,0,1,0,0,1,1,0,
1,1,0,0,1,1,1,0,0,1,1,
1,0,0,1,1,0,1,1,0,0,1,
1,1,0,0,1,1,1,0,0,1,1,
0,1,1,0,0,1,0,0,1,1,0,
0,0,1,1,0,0,0,1,1,0,0,
0,0,1,1,1,0,1,1,1,0,0,
0,0,0,0,1,1,1,0,0,0,0};
int triangle[] = {
1,1,0,0,0,0,0,0,0,0,0,
1,1,1,0,0,0,0,0,0,0,0,
1,1,1,1,1,0,0,0,0,0,0,
1,1,1,1,1,1,1,0,0,0,0,
1,1,1,1,1,1,1,1,1,0,0,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,0,0,
1,1,1,1,1,1,1,0,0,0,0,
1,1,1,1,1,0,0,0,0,0,0,
1,1,1,0,0,0,0,0,0,0,0,
1,1,0,0,0,0,0,0,0,0,0};
int diagonal[] = {
1,0,0,0,0,1,0,0,0,1,1,
0,0,0,0,1,0,0,0,1,1,1,
0,0,0,1,0,0,0,1,1,1,0,
0,0,1,0,0,0,1,1,1,0,0,
0,1,0,0,0,1,1,1,0,0,0,
1,0,0,0,1,1,1,0,0,0,0,
0,0,0,1,1,1,0,0,0,0,1,
0,0,1,1,1,0,0,0,0,1,0,
0,1,1,1,0,0,0,0,1,0,0,
1,1,1,0,0,0,0,1,0,0,0,
1,1,0,0,0,0,1,0,0,0,1};
int full[] = {
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1};
int seta[] = {
0,0,1,1,1,1,1,1,1,0,0,
0,0,1,1,1,1,1,1,1,0,0,
0,0,1,1,1,1,1,1,1,0,0,
0,0,1,1,1,1,1,1,1,0,0,
0,0,1,1,1,1,1,1,1,0,0,
1,1,1,1,1,1,1,1,1,1,1,
0,1,1,1,1,1,1,1,1,1,0,
0,0,1,1,1,1,1,1,1,0,0,
0,0,0,1,1,1,1,1,0,0,0,
0,0,0,0,1,1,1,0,0,0,0,
0,0,0,0,0,1,0,0,0,0,0};
int square2[] = {
1,0,0,0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0,0,0,1,
1,0,1,1,1,1,1,1,1,0,1,
1,0,1,1,1,1,1,1,1,0,1,
1,0,1,1,0,0,0,1,1,0,1,
1,0,1,1,0,0,0,1,1,0,1,
1,0,1,1,0,0,0,1,1,0,1,
1,0,1,1,1,1,1,1,1,0,1,
1,0,1,1,1,1,1,1,1,0,1,
1,0,0,0,0,0,0,0,0,0,1,
1,0,0,0,0,0,0,0,0,0,1};
char caracter;
int lastPict[] = {
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0};
int dotTime;
// this constant won't change:
const int buttonPin = 2; // the pin that the pushbutton is attached to
// Variables will change:
int buttonPushCounter = 0; // counter for the number of button presses
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button
#include
void setup()
{
// POV setting the ports of the leds to OUTPUT
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
// defining the time dots appear (ms)
dotTime = 5;
// initialize the button pin as a input:
pinMode(buttonPin, INPUT);
// initialize serial communication:
Serial.begin(9600);
}
//POV
void printPict(int row[]){
int y;
// printing the y1 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y]);
}
delay(dotTime);
// printing the y2 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+11]);
}
delay(dotTime);
// printing the y3 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+22]);
}
delay(dotTime);
// printing the y4 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+33]);
}
delay(dotTime);
// printing the y5 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+44]);
}
delay(dotTime);
// printing the y6 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+55]);
}
delay(dotTime);
// printing the y7 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+66]);
}
delay(dotTime);
// printing the y8 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+77]);
}
delay(dotTime);
// printing the y9 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+88]);
}
delay(dotTime);
// printing the y10 row of the pict
for (y=0; y<11; y++)
{
digitalWrite(y+3, row[y+99]);
}
delay(dotTime);
// printing the y11 row of the pict
for (y=0; y<11; y++) { digitalWrite(y+3, row[y+110]); } delay(dotTime); } void loop() { checkSerial(); printPict(lastPict); } int checkSerial () { //button loop // read the pushbutton input pin: buttonState = digitalRead(buttonPin); // compare the buttonState to its previous state if (buttonState != lastButtonState) { // if the state has changed, increment the counter if (buttonState == HIGH) { // if the current state is HIGH then the button // wend from off to on: buttonPushCounter++; Serial.println("on"); Serial.print("number of button pushes: "); Serial.println(buttonPushCounter, DEC); } else { // if the current state is LOW then the button // wend from on to off: Serial.println("off"); } } // save the current state as the last state, //for next time through the loop lastButtonState = buttonState; if(buttonPushCounter == 0) { memcpy(lastPict, off, sizeof(lastPict)); } if (buttonPushCounter == 1) { memcpy(lastPict, triangle, sizeof(lastPict)); } if (buttonPushCounter == 2) { memcpy(lastPict, diagonal, sizeof(lastPict)); } if (buttonPushCounter == 3) { memcpy(lastPict, seta, sizeof(lastPict)); } if (buttonPushCounter == 4) { memcpy(lastPict, greek, sizeof(lastPict)); } if (buttonPushCounter == 5) { memcpy(lastPict, chakana, sizeof(lastPict)); } if (buttonPushCounter > 5) {
buttonPushCounter = 0;
}
Perfboard Circuit
In this circuit the Arduino components were direct soldiers in the perforated plate, as well as the complementary circuit with LEDs, resistors, buttons and battery.
You can use plastic or wire seals to secure the LED board on bike radius
Agora é só ligar e sair rodando!
Comments by Shankara