danic85

/*
 * ThreeServos.cpp
 *
 *  Shows smooth movement from one servo position to another for 3 servos synchronously.
 *  Demonstrates the use of ServoEasingArray and ServoEasingNextPositionArray.
 *
 *  Copyright (C) 2019-2022  Armin Joachimsmeyer
 *  armin.joachimsmeyer@gmail.com
 *
 *  This file is part of ServoEasing https://github.com/ArminJo/ServoEasing.

danic85

Following config described here: https://www.kevsrobots.com/learn/learn_ros/00_intro.html

There is also a more detailed cheet sheet available here: https://www.theconstructsim.com/wp-content/uploads/2021/10/ROS2-Command-Cheat-Sheets-updated.pdf

Configure docker for display output

(to use GUI components)

References:

https://www.kevsrobots.com/learn/learn_ros/15_rviz.html

danic85

// ---------------------------------------------------------------- //
// Arduino Smart Servo (continuous servo voltage monitor)
// Uses a uses a shunt resistor to create a voltage divider that the arduino can monitor. 
// When the voltage passes a threshold the servo pauses for a second before continuing.
// https://www.instagram.com/p/CTXWAH9jmJE/
// Tested on September 2020
// Author: Dan Nicholson (github.com/danic85)
// ---------------------------------------------------------------- //

#include <Servo.h>

danic85

// ---------------------------------------------------------------- //
// Arduino Watch Frog (HC-SR04 door distance alarm)
// Place with sensor facing a closed door and then attach power. 
// Alarm will sound if distance to door changes in either direction
// beyond the THRESHOLD. Alarm will not stop until power is disconnected.
// Tested on 10 September 2020
// Author: Dan Nicholson (github.com/danic85)
// ---------------------------------------------------------------- //

#define echoPin 7 // Echo of HC-SR04

danic85

<aura:attribute name="testBoolean" type="Boolean" default="false" />

<lightning:input name="testBoolean" label="Test Boolean" type="checkbox" checked="{!v.testBoolean}" />

danic85

/* Example for sending an email when there is an error on a JSON request */
private static void sendErrorEmail(String method, HttpResponse response, String requestJSON) {
    Messaging.SingleEmailMessage message = new Messaging.SingleEmailMessage();
    message.toAddresses = new String[] { 'me@example.org' };
    message.subject = 'Error in ' + method + ' : ' + response.getStatusCode() + ' - ' + response.getStatus();
    if (requestJSON == '' || requestJSON == null)
        message.plainTextBody = 'No body';
    else message.plainTextBody = requestJSON;
    Messaging.SingleEmailMessage[] messages =  new List<Messaging.SingleEmailMessage> {message};
    Messaging.SendEmailResult[] results = Messaging.sendEmail(messages);

danic85

<!-- Component Markup -->
<div aura:id="yourIdentifier">
    <c:Your_Component />
</div>

/**
 * Controller Method
 */
showComponent : function (component, event, helper) {
  $A.util.removeClass(component.find("yourIdentifier"), "slds-hide");

danic85

<aura:component implements="flexipage:availableForAllPageTypes">
    <!-- Simple example of conditional default blocking changes -->
    <aura:attribute name="myString" type="string" default="{!if(false, 'Default Val', 'Other Default')}"/>
    <aura:attribute name="mySimpleString" type="string" default="Default Val"/>
    
    <!-- Conditional default on object value will update, but will not allow external changes -->
    <aura:attribute name="myObj" type="object"/>
    <aura:attribute name="myObjString" type="string" default="{!if(empty(v.myObj), 'Default Val', v.myObj.val)}"/>
    
    <aura:handler name="init" value="{!this}" action="{!c.doInit}" />

danic85

<aura:component implements="flexipage:availableForAllPageTypes">
    <aura:attribute name="myString" type="string" default="{!if(false, 'Default Val', 'Other Default')}"/>
    <aura:attribute name="mySimpleString" type="string" default="Default Val"/>
    <aura:handler name="init" value="{!this}" action="{!c.doInit}" />
    <div class="slds-card">
        {!v.myString} <!-- Will always output 'Other Default', even if changed later by doInit -->
        {!v.mySimpleString} <!-- Will be changed to 'Set Directly' by doInit -->
    </div>
</aura:component>

danic85

/* YourDuino Example: Find Address of a DS18B20 Temperature Sensor
 Cut and paste the address to a text file for later use.
 V1.1 01/17/2013
 Questions: terry@yourduino.com 
 URL: http://arduino-info.wikispaces.com/Brick-Temperature-DS18B20#Read%20individual
 
 Connections:
 DS18B20 Pinout (Left to Right, pins down, flat side toward you)
 - Left   = Ground
 - Center = Signal (Pin 2):  (with 3.3K to 4.7K resistor to +5 or 3.3 )