Espruino on your watch!

Rough info so far:

CPU: https://infocenter.nordicsemi.com/topic/­com.nordic.infocenter.pdf.ps/nRF51822_PS­_v3.1.pdf
Accelerometer: http://kionixfs.kionix.com/cn/datasheet/­KX022-1020%20Specifications%20Rev4.0%20c­n.pdf
0.49" OLED - SSD1306 - http://www.buydisplay.com/download/manua­l/ER-OLED0.49-1_Series_Datasheet.pdf (but not that pinout)

Test code - there's very little program space at the moment:

var BTN = D4; pinMode(BTN,"input_pullup");

var initCmds = new Uint8Array([ 
  0xAe,
  0xD5, 
  0x80, 
  0xA8, 31,
  0xD3,0x0,
  0x40,
  0x8D, 0x14, 
  0x20,0x0, 
  0xA1,
  0xC8,
  0xDA, 0x12,
  0x81, 0xCF,
  0xD9, 0xF1,
  0xDb, 0x40,
  0xA4,
  0xA6,
  0xAf 
]);
var flipCmds = [
     0x21,
     0, 63,
     0x22,
     0, 7];


var dc = D0;
var rst = D1;
var cs = D2;

var g = Graphics.createArrayBuffer(63,31,1,{vert­ical_byte : true});

var spi = new SPI();
spi.setup({mosi: 29 /* D1 */, sck:30 /* D0 */});

digitalPulse(rst,0,10);
setTimeout(function() {
  digitalWrite(cs,0);
  digitalWrite(dc,0); // command
  spi.write(initCmds);
  digitalWrite(dc,1); // data
  digitalWrite(cs,10);
}, 50);

g.flip = function() { 
cs.reset();dc.reset();
spi.write([0x21,0,127,0x22,0,7]);
for (var i=0;i<4;i++) {
  spi.write(0xb0+i,0x00,0x12);
  dc.set();
  spi.write(Uint8Array(this.buffer,64*i,64­));
  dc.reset();
}cs.set();
};

//function cmd(c){cs.reset();dc.reset();spi.write(c­);cs.set();}
//function dispoff(){cmd(0xae);}
//function dispon(){cmd(0xaf);}

 g.drawString("Hello",0,0);
 g.drawString("ESPRUINO",10,10);
 g.flip();