source: rtos_arduino/trunk/arduino_lib/libraries/thingspeak-arduino/examples/WriteMultipleVoltages/WriteMultipleVoltages.ino@ 189

Last change on this file since 189 was 189, checked in by ertl-honda, 8 years ago

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1/*
2 WriteMultipleVoltages
3
4 Reads analog voltages from pins 0-7 and writes them to the 8 fields of a channel on ThingSpeak every 20 seconds.
5
6 ThingSpeak ( https://www.thingspeak.com ) is a free IoT service for prototyping
7 systems that collect, analyze, and react to their environments.
8
9 Copyright 2015, The MathWorks, Inc.
10
11 Documentation for the ThingSpeak Communication Library for Arduino is in the extras/documentation folder where the library was installed.
12 See the accompaning licence file for licensing information.
13*/
14
15#ifdef SPARK
16 #include "ThingSpeak/ThingSpeak.h"
17#else
18 #include "ThingSpeak.h"
19#endif
20
21/// ***********************************************************************************************************
22// This example selects the correct library to use based on the board selected under the Tools menu in the IDE.
23// Yun, Wired Ethernet shield, wi-fi shield, esp8266, and Spark are all supported.
24// With Uno and Mega, the default is that you're using a wired ethernet shield (http://www.arduino.cc/en/Main/ArduinoEthernetShield)
25// If you're using a wi-fi shield (http://www.arduino.cc/en/Main/ArduinoWiFiShield), uncomment the line below
26// ***********************************************************************************************************
27//#define USE_WIFI_SHIELD
28#ifdef ARDUINO_ARCH_AVR
29
30 #ifdef ARDUINO_AVR_YUN
31 #include "YunClient.h"
32 YunClient client;
33 #else
34
35 #ifdef USE_WIFI_SHIELD
36 #include <SPI.h>
37 // ESP8266 USERS -- YOU MUST COMMENT OUT THE LINE BELOW. There's a bug in the Arduino IDE that causes it to not respect #ifdef when it comes to #includes
38 // If you get "multiple definition of `WiFi'" -- comment out the line below.
39 #include <WiFi.h>
40 char ssid[] = "<YOURNETWORK>"; // your network SSID (name)
41 char pass[] = "<YOURPASSWORD>"; // your network password
42 int status = WL_IDLE_STATUS;
43 WiFiClient client;
44 #else
45 // Use wired ethernet shield
46 #include <SPI.h>
47 #include <Ethernet.h>
48 byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
49 EthernetClient client;
50 #endif
51 #endif
52 // On Arduino: 0 - 1023 maps to 0 - 5 volts
53 #define VOLTAGE_MAX 5.0
54 #define VOLTAGE_MAXCOUNTS 1023.0
55#endif
56
57#ifdef ARDUINO_ARCH_ESP8266
58 #include <ESP8266WiFi.h>
59 char ssid[] = "<YOURNETWORK>"; // your network SSID (name)
60 char pass[] = "<YOURPASSWORD>"; // your network password
61 int status = WL_IDLE_STATUS;
62 WiFiClient client;
63 // On ESP8266: 0 - 1023 maps to 0 - 1 volts
64 #define VOLTAGE_MAX 1.0
65 #define VOLTAGE_MAXCOUNTS 1023.0
66#endif
67
68#ifdef SPARK
69 TCPClient client;
70 #define VOLTAGE_MAX 3.3
71 #define VOLTAGE_MAXCOUNTS 4095.0
72#endif
73
74/*
75 *****************************************************************************************
76 **** Visit https://www.thingspeak.com to sign up for a free account and create
77 **** a channel. The video tutorial http://community.thingspeak.com/tutorials/thingspeak-channels/
78 **** has more information. You need to change this to your channel, and your write API key
79 **** IF YOU SHARE YOUR CODE WITH OTHERS, MAKE SURE YOU REMOVE YOUR WRITE API KEY!!
80 *****************************************************************************************/
81unsigned long myChannelNumber = 31461;
82const char * myWriteAPIKey = "LD79EOAAWRVYF04Y";
83
84void setup() {
85 #if defined(ARDUINO_ARCH_AVR) || defined(ARDUINO_ARCH_ESP8266)
86 #ifdef ARDUINO_AVR_YUN
87 Bridge.begin();
88 #else
89 #if defined(USE_WIFI_SHIELD) || defined(ARDUINO_ARCH_ESP8266)
90 WiFi.begin(ssid, pass);
91 #else
92 Ethernet.begin(mac);
93 #endif
94 #endif
95 #endif
96
97 ThingSpeak.begin(client);
98}
99
100void loop() {
101 // Read the input on each pin, convert the reading, and set each field to be sent to ThingSpeak.
102 // On Arduino: 0 - 1023 maps to 0 - 5 volts
103 // On ESP8266: 0 - 1023 maps to 0 - 1 volts
104 // On Particle: 0 - 4095 maps to 0 - 3.3 volts
105 float pinVoltage = analogRead(A0) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
106 ThingSpeak.setField(1,pinVoltage);
107 #ifndef ARDUINO_ARCH_ESP8266
108 // The ESP8266 only has one analog input, so skip this
109 pinVoltage = analogRead(A1) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
110 ThingSpeak.setField(2,pinVoltage);
111 pinVoltage = analogRead(A2) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
112 ThingSpeak.setField(3,pinVoltage);
113 pinVoltage = analogRead(A3) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
114 ThingSpeak.setField(4,pinVoltage);
115 pinVoltage = analogRead(A4) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
116 ThingSpeak.setField(5,pinVoltage);
117 pinVoltage = analogRead(A5) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
118 ThingSpeak.setField(6,pinVoltage);
119 pinVoltage = analogRead(A6) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
120 ThingSpeak.setField(7,pinVoltage);
121 pinVoltage = analogRead(A7) * (VOLTAGE_MAX / VOLTAGE_MAXCOUNTS);
122 ThingSpeak.setField(8,pinVoltage);
123 #endif
124
125 // Write the fields that you've set all at once.
126 ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
127
128 delay(20000); // ThingSpeak will only accept updates every 15 seconds.
129}
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