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tm1637: brand new working implementation

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Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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Mihai Tudor Panu
2015-04-08 16:02:59 -07:00
parent 1d0284abaf
commit 828d3b928e
10 changed files with 595 additions and 0 deletions
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examples/javascript/tm1637.js Normal file
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/*
* Author: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// Some vars
var colon = true;
var interval;
// Load display
var tm1637 = require('jsupm_tm1637');
// Instantiate on pins 0 (Clk) and 1 (Dio)
var display = new tm1637.TM1637(0, 1);
// Get the current time
var now = new Date();
console.log("System time: " + now.getHours() + ":" + ("0" + now.getMinutes()).slice(-2));
console.log("Time zone can be changed by setting the TZ environment variable.");
// Display and time update function
function update(){
now = new Date();
var time = now.getHours().toString() + ("0" + now.getMinutes().toString()).slice(-2);
display.writeString(time);
display.setColon(colon = !colon);
}
// Start with a 7-segment encoded box on the display
display.write(0x39, 0x09, 0x09, 0x0f);
// Start displaying the clock after 3 seconds
setTimeout(function(){
// And update every second thereafter
interval = setInterval(update, 1000);
}, 3000)
// Exit handler
process.on('SIGINT', function()
{
clearInterval(interval);
display = null;
tm1637.cleanUp();
tm1637 = null;
console.log("Interrupt received, exiting...");
process.exit(0);
});