ThingHTTP call to Twilio results in "AccountSid or AuthToken was incorrect"

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I am using the example (to send an SMS from an Arduino) at https://www.instructables.com/id/Send-SMS-from-Arduino-over-the-Internet-using-ENC2/
I have triple checked the Twilio credentials entered into the ThingHTTP project and the ThingHTTP project's API key.
The Arduino code and the serial output text are below...
/*
Send SMS from Arduino over the Internet using ENC28J60 and Thingspeak
Change one line to use with ethernet shield
Add sensor readings in the loop and a time interval
Using Arduino UIP library from https://github.com/ntruchsess/arduino_uip
Code based on Sparkfun's data logging service data.sparkfun.com
URL encode function from http://hardwarefun.com/tutorials/url-encoding-in-arduino
*/
#include <SPI.h>
//change the following line to #include <Ethernet.h> to use the eithent shield
#include <Ethernet.h>
// Enter a MAC address for your controller below.
byte mac[] = { 0x00, 0x24, 0xd6, 0x7f, 0xa2, 0x54 };
//thingspeak server
char server[] = "api.thingspeak.com";
//if DHCP fails, use a static IP
IPAddress ip(192,168,0,199);
// Initialize the Ethernet client library
EthernetClient client;
//API key for the Thingspeak ThingHTTP already configured
const String apiKey = "<<my API code fromn ThingHTTP project>>";
//the number the message should be sent to
const String sendNumber = "<<my cell phone number>>"; // format "+1nnnnnnnnnn"
void setup()
{
Serial.begin(9600);
//set up Ethernet:
setupEthernet();
//send the sms
Serial.println("Sending SMS");
//this function will send the sms
//the first argument is the number to send to, formatted like this +12345678901
//the second argument is the body of the text message, which must be within URLEncode()
sendSMS(sendNumber, URLEncode("Hello World!"));
}
void loop()
{
}
void sendSMS(String number,String message)
{
// Make a TCP connection to remote host
Serial.print(F("server: "));
Serial.println(server);
// Serial.print("client.connect(server,80): ");
// Serial.println(client.connect(server, 80));
if (client.connect(server, 80))
{
//should look like this...
//api.thingspeak.com/apps/thinghttp/send_request?api_key={api key}&number={send to number}&message={text body}
Serial.println("client.connect(server, 80) is true");
client.print("GET /apps/thinghttp/send_request?api_key=");
client.print(apiKey);
client.print("&number=");
client.print(number);
client.print("&message=");
client.print(message);
client.println(" HTTP/1.1");
client.print("Host: ");
client.println(server);
client.println("Connection: close");
client.println();
Serial.print("GET /apps/thinghttp/send_request?api_key=");
Serial.print(apiKey);
Serial.print("&number=");
Serial.print(number);
Serial.print("&message=");
Serial.print(message);
Serial.println(" HTTP/1.1");
Serial.print("Host: ");
Serial.println(server);
Serial.println("Connection: close");
Serial.println();
Serial.println(F("TS Connection succeeded"));
}
else
{
Serial.println(F("TS Connection failed"));
}
// Check for a response from the server, and route it
// out the serial port.
if (client.connected()) {
Serial.println(F("Server response..."));
}
while (client.connected())
{
if ( client.available() )
{
char c = client.read();
Serial.print(c);
}
}
Serial.println();
Serial.println("End of reading from server");
client.stop();
}
void setupEthernet()
{
Serial.println("Setting up Ethernet...");
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println(F("Failed to configure Ethernet using DHCP"));
// no point in carrying on, so do nothing forevermore:
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip);
}
Serial.print("My IP address: ");
Serial.println(Ethernet.localIP());
// give the Ethernet shield a second to initialize:
delay(1000);
}
String URLEncode(const char* msg)
{
const char *hex = "0123456789abcdef";
String encodedMsg = "";
while (*msg!='\0'){
if( ('a' <= *msg && *msg <= 'z')
|| ('A' <= *msg && *msg <= 'Z')
|| ('0' <= *msg && *msg <= '9') ) {
encodedMsg += *msg;
}
else {
encodedMsg += '%';
encodedMsg += hex[*msg >> 4];
encodedMsg += hex[*msg & 15];
}
msg++;
}
return encodedMsg;
}
  2 comentarios
Wade Campbell
Wade Campbell el 27 de Nov. de 2019
Would appreciate some help on this. Any suggestions/theories???
Wade Campbell
Wade Campbell el 30 de Nov. de 2019
Got it. Pilot error... Twilio account id and auth code had a space at the end that should not have been there. Didn't realize double clicking a number selected the number with a space at the end.

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Respuesta aceptada

Vinod
Vinod el 1 de Dic. de 2019
Thanks for sharing your code and the solution in your comment.
Looks like you were able to figure out the solution before we could get to your query.

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