Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.

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Ruby on Rails       Report abuse 

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#include "wiring_serial.h"

void clear_screen(void) {
  serialWrite(0x7c); serialWrite(0x00);
}

void pixel(char S_R, char x, char y) {
  serialWrite(0x7c); serialWrite(0x10); 
  serialWrite(x); serialWrite(y); serialWrite(S_R);
}

void line(char S_R, char x1, char y1, char x2, char y2) {
  serialWrite(0x7c); serialWrite(0x0c); 
  serialWrite(x1); serialWrite(y1); serialWrite(x2); serialWrite(y2); serialWrite(S_R);
}

void circle(char S_R, int x, int y, int r) {
  serialWrite(0x7c); serialWrite(0x03);  
  serialWrite(x); serialWrite(y); serialWrite(r); serialWrite(S_R);
}

void erase_block(char x1, char y1, char x2, char y2) {
  serialWrite(0x7c); serialWrite(0x05); 
  serialWrite(x1); serialWrite(y1); serialWrite(x2); serialWrite(y2);
}

void box(char S_R, char x1, char y1, char x2, char y2) {
  // serialWrite(0x7c); serialWrite(0x0f); 
  // serialWrite(x1); serialWrite(y1); serialWrite(x2); serialWrite(y2); serialWrite(S_R);
  line(S_R, x1, y1, x2, y1);
  line(S_R, x2, y1, x2, y2);
  line(S_R, x1, y2, x2, y2);
  line(S_R, x1, y2, x1, y1);
}

void set_text_position(char x, char y) {
  serialWrite(0x7c); serialWrite(0x18); serialWrite(x); 
  serialWrite(0x7c); serialWrite(0x19); serialWrite(y);
}