English
Andar de bike é bom, mas com LEDs é melhor ainda. Bike POV é um dispositivo luminoso que faz desenhos na roda da bicicleta conforme ela gira. Ele é feito com um Arduino, 11 leds que podem ser de qualquer cor e um botão de controle para trocar os padrões desenhados.
Materias:
1 Arduino
11 LEDs
11 Resistores 12R
1 Resistor 10K
1 Pushbutton
1 Switch
28 Pins Header Macho
1 Bateria 9V
1 Soquete de bateria 9V
Ferramentas:
Ferro de solda
Alicate de corte
Circuito:
Segue o código do Arduino:
// 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;
}
Circuito na placa perfurada
Neste circuito os componentes do Arduino foram soldados direto na placa perfurada, assim como o circuito complementar com os leds, resistores, botões e bateria.
Pode-se usar lacres plásticos ou arame para fixar a placa de leds no raio da bicicleta
Agora é só ligar e sair rodando!
Comments by Shankara