frodovdr
/
node-red-nodes
mirror of https://github.com/node-red/node-red-nodes.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Set BBB nodes to only load if bonescript present. (ie on a BBB)

This commit is contained in:
Dave C-J 2014-04-01 10:45:54 +01:00
parent e8c328a9e1
commit 3da2a29b5e
1 changed files with 21 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
hardware/BBB/145-BBB-hardware.js
View File

@ -16,13 +16,14 @@
// Require main module
var RED = require(process.env.NODE_RED_HOME + "/red/red");
var bonescript = require("bonescript");
// Require bonescript
try {
var bonescript = require("bonescript");
} catch (err) {
require("util").log("[145-BBB-hardware] Error: cannot find module 'bonescript'");
}
//try {
// var bonescript = require("bonescript");
//} catch (err) {
// require("util").log("[145-BBB-hardware] Error: cannot find module 'bonescript'");
//}
// Node constructor for bbb-analogue-in
function AnalogueInputNode(n) {
@ -46,7 +47,7 @@ function AnalogueInputNode(n) {
// Variables used for input averaging
var sum; // accumulates the input readings to be averaged
var count; // keep track of the number of measurements made
// The callback function for analogRead. Accumulates the required number of
// measurements, then divides the total number, applies output scaling and
// sends the result
@ -113,11 +114,11 @@ function DiscreteInputNode(n) {
this.starting = true;
this.debouncing = false; // True after a change of state while waiting for the 7ms debounce time to elapse
this.debounceTimer = null;
// Define 'node' to allow us to access 'this' from within callbacks
var node = this;
// This function is called by the input pin change-of-state interrupt. If
// This function is called by the input pin change-of-state interrupt. If
// debounce is disabled, send the output message. Otherwise, if we are
// currently debouncing, ignore this interrupt. If we are not debouncing,
// schedule a re-read of the input pin in 7ms time, and set the debouncing flag
@ -146,7 +147,7 @@ function DiscreteInputNode(n) {
sendStateMessage(x);
}
};
// This function is called when either the interruptCallback or the debounceCallback
// have determined we have a 'genuine' change of state. Update the currentState and
// ActiveTime variables, and send a message on the first output with the new state
@ -165,7 +166,7 @@ function DiscreteInputNode(n) {
node.send([msg, null]);
}
};
// This function is called by the timer. It updates the ActiveTime variables, and sends a
// message on the second output with the latest value of the total active time, in seconds
var timerCallback = function () {
@ -270,7 +271,7 @@ function PulseInputNode(n) {
// Define 'node' to allow us to access 'this' from within callbacks
var node = this;
// Called by the edge or pulse interrupt. If this is a valid interrupt, record the
// Called by the edge or pulse interrupt. If this is a valid interrupt, record the
// pulse time and count the pulse
var interruptCallback = function (x) {
if (x.value !== undefined) {
@ -350,12 +351,12 @@ function DiscreteOutputNode(n) {
this.defaultState = Number(n.defaultState); // What state to set up as
this.inverting = n.inverting;
this.toggle = n.toggle;
// Working variables
this.currentState = this.defaultState;
var node = this;
// If the input message paylod is numeric, values > 0.5 are 'true', otherwise use
// the truthiness of the payload. Apply the inversion flag before setting the output
var inputCallback = function (msg) {
@ -378,7 +379,7 @@ function DiscreteOutputNode(n) {
node.send({ topic:node.topic, payload:newState });
node.currentState = newState;
};
// If we have a valid pin, set it as an output and set the default state
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",
@ -407,12 +408,12 @@ function PulseOutputNode(n) {
this.defaultState = this.pulseState === 1 ? 0 : 1;
this.retriggerable = n.retriggerable;
this.pulseTime = n.pulseTime * 1000; // Pulse width in milliseconds
// Working variables
this.pulseTimer = null; // Non-null while a pulse is being generated
var node = this;
// Generate a pulse in response to an input message. If the topic includes the text
// 'time' (case insensitive) and the payload is numeric, use this value as the
// pulse time. Otherwise use the value from the properties dialog.
@ -444,14 +445,14 @@ function PulseOutputNode(n) {
}
}
};
// At the end of the pulse, restore the default state and set the timer to null
var endPulseCallback = function () {
node.pulseTimer = null;
bonescript.digitalWrite(node.pin, node.defaultState);
node.send({ topic:node.topic, payload:node.defaultState });
};
// If we have a valid pin, set it as an output and set the default state
if (["P8_7", "P8_8", "P8_9", "P8_10", "P8_11", "P8_12", "P8_13", "P8_14", "P8_15",
"P8_16", "P8_17", "P8_18", "P8_19", "P8_26", "P9_11", "P9_12", "P9_13", "P9_14",