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js examples: removed surplus char() helper function

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Closes #226.

Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Alex Tereschenko
2016-02-07 10:06:49 +01:00
committed by Brendan Le Foll
parent 9202eb172d
commit c101117ece
3 changed files with 13 additions and 22 deletions
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15
examples/javascript/bmp85.js
View File

@@ -26,30 +26,27 @@
var m = require('mraa'); //require mraa
// helper function to go from hex val to dec
function char(x) { return parseInt(x, 16); }
x = new m.I2c(0)
x.address(0x77)
// initialise device
if (x.readReg(char('0xd0')) != char('0x55')) {
if (x.readReg(0xd0) != 0x55) {
console.log("error");
}
// we want to read temperature so write 0x2e into control reg
x.writeReg(char('0xf4'), char('0x2e'))
x.writeReg(0xf4, 0x2e)
// read a 16bit reg, obviously it's uncalibrated so mostly a useless value :)
console.log(x.readWordReg(char('0xf6')))
console.log(x.readWordReg(0xf6))
// and we can do the same thing with the read()/write() calls if we wished
// thought I'd really not recommend it!
buf = new Buffer(2)
buf[0] = char('0xf4')
buf[1] = char('0x2e')
buf[0] = 0xf4
buf[1] = 0x2e
console.log(buf.toString('hex'))
x.write(buf)
x.writeByte(char('0xf6'))
x.writeByte(0xf6)
d = x.read(2)

9
examples/javascript/rgblcd.js
View File

@@ -24,14 +24,11 @@
var m = require('mraa'); //require mraa
// helper function to go from hex val to dec
function char(x) { return parseInt(x, 16); }
x = new m.I2c(0)
x.address(0x62)
x.writeReg(0, 0)
x.writeReg(1, 0)
x.writeReg(char('0x08'), char('0xAA'))
x.writeReg(char('0x04'), 255)
x.writeReg(char('0x02'), 255)
x.writeReg(0x08, 0xAA)
x.writeReg(0x04, 255)
x.writeReg(0x02, 255)

11
examples/javascript/spi.js
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@@ -26,15 +26,12 @@
var m = require('mraa'); //require mraa
// helper function to go from hex val to dec
function char(x) { return parseInt(x, 16); }
x = new m.Spi(0)
buf = new Buffer(4)
buf[0] = char('0xf4')
buf[1] = char('0x2e')
buf[2] = char('0x3e')
buf[3] = char('0x4e')
buf[0] = 0xf4
buf[1] = 0x2e
buf[2] = 0x3e
buf[3] = 0x4e
buf2 = x.write(buf)
console.log("Sent: " + buf.toString('hex') + ". Received: " + buf2.toString('hex'))