Onnowpurbo: Created page with " #include "ThingSpeak.h" #include #include "secrets.h" byte mac[] = SECRET_MAC; // Set the static IP address to use if the DHCP fails to assign IPAddress i..."

2019-11-04T10:50:31Z

Created page with " #include "ThingSpeak.h" #include <Ethernet.h> #include "secrets.h" byte mac[] = SECRET_MAC; // Set the static IP address to use if the DHCP fails to assign IPAddress i..."

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#include "ThingSpeak.h"
#include <Ethernet.h>
#include "secrets.h"

byte mac[] = SECRET_MAC;
// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 0, 177);
IPAddress myDns(192, 168, 0, 1);
EthernetClient client;

unsigned long myChannelNumber = SECRET_CH_ID;
const char * myWriteAPIKey = SECRET_WRITE_APIKEY;

void setup() {
Ethernet.init(10); // Most Arduino Ethernet hardware
Serial.begin(115200); //Initialize serial

// start the Ethernet connection:
Serial.println("Initialize Ethernet with DHCP:");
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// Check for Ethernet hardware present
if (Ethernet.hardwareStatus() == EthernetNoHardware) {
Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :(");
while (true) {
delay(1); // do nothing, no point running without Ethernet hardware
}
}
if (Ethernet.linkStatus() == LinkOFF) {
Serial.println("Ethernet cable is not connected.");
}
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip, myDns);
} else {
Serial.print(" DHCP assigned IP ");
Serial.println(Ethernet.localIP());
}
// give the Ethernet shield a second to initialize:
delay(1000);

ThingSpeak.begin(client); // Initialize ThingSpeak
}

void loop() {

float a0 = analogRead(15);
if (isnan(a0) || isnan(t) ) {
Serial.println("Failed to read from GPIO 15");
return;
}

// set the fields with the values
ThingSpeak.setField(3, a0);

// write to the ThingSpeak channel
int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
if(x == 200){
Serial.println("Channel update successful.");
}
else{
Serial.println("Problem updating channel. HTTP error code " + String(x));
}

delay(20000); // Wait 20 seconds to update the channel again
}

Thingspeak: Analog GPIO - Revision history

Onnowpurbo: Created page with " #include "ThingSpeak.h" #include #include "secrets.h" byte mac[] = SECRET_MAC; // Set the static IP address to use if the DHCP fails to assign IPAddress i..."