node-red-contrib-smartnode-seeed
Version:
this project dependences the node-red-contrib-smartnode package for basic function. based on the smartnode package, this package provide some sersor nodes for Seeed sensors.
70 lines (68 loc) • 2.79 kB
JavaScript
/**
* Copyright 2015, 2015 MakerCollider.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED){
var checkPin = require("node-red-contrib-smartnode/extends/check_pin");
var groveSensor = require("jsupm_grove");
function relay(config) {
RED.nodes.createNode(this, config);
this.digitalPin = config.digitalPin;
var node = this;
node.digitalPin = node.digitalPin>>>0;
var key = 'P'+node.digitalPin;
if (checkPin.getDigitalPinValue(key)==1){
node.status({fill: "red", shape: "dot", text: "pin repeat"});
console.log('Relay digital pin ' + node.digitalPin +' repeat');
return;
}
else if (checkPin.getDigitalPinValue(key)==0){
checkPin.setDigitalPinValue(key, 1);
node.status({fill: "blue", shape: "ring", text: "pin check pass"});
console.log('Relay digital pin ' + node.digitalPin +' OK');
}
else{
node.status({fill: "blue", shape: "ring", text: "Unknown"});
console.log('unknown pin' + node.digitalPin + ' key value' + checkPin.getDigitalPinValue(key));
return;
}
var is_on = false;
var relay = new groveSensor.GroveRelay(node.digitalPin);
this.on('input', function(msg) {
//use 'injector' node and pass string to control virtual node
var payload = msg.payload>>>0;
console.log("recv msg: " + payload);
if (payload) {
//switch on
if (is_on == false) {
is_on = true;
relay.on();
node.status({fill: "green", shape: "dot", text: "Relay turn on"});
}
}//switch off
else {
if (is_on == true) {
is_on = false;
relay.off();
node.status({fill: "red", shape: "ring", text: "Relay turn off"});
}
}
});
this.on('close', function() {
node.status({fill: "red", shape: "ring", text: "Relay turn off"});
checkPin.initDigitalPin(); //init pin
});
}
RED.nodes.registerType("Seeed-Relay", relay);
}