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MQTT_x509_bin.ino
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/* ESP8266 AWS IoT example by Evandro Luis Copercini
Public Domain - 2017
It connects to AWS IoT server then:
- publishes "hello world" to the topic "outTopic" every two seconds
- subscribes to the topic "inTopic", printing out any messages
-WARNING: this example doesn't verify the server CA due low heap, this can be a security issue
*/
#include <ESP8266WiFi.h>
#include <PubSubClient.h> //Get it from here: https://github.com/knolleary/pubsubclient
/* convert and replace with your keys
$ openssl x509 -in aaaaaaaaa-certificate.pem.crt -out certificates/cert.der -outform DER
$ openssl rsa -in aaaaaaaaaa-private.pem.key -out certificates/private.der -outform DER
$ xxd -i certificates
*/
unsigned char certificates_esp8266_bin_key[] = { 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x34, 0xc3, 0x01, 0x00, 0xf5, 0xc5, 0x4b, 0x6a, 0x1f, 0x4b, 0x49, 0xcc, 0xb3, 0x49, 0xcc, 0xca, 0x03, 0xc4, 0x9f, 0xab, 0x4a, 0x56, 0x5a, 0x44, 0x45, 0x3c, 0xfc, 0xac, 0x0f, 0xaa, 0xf4, 0x56, 0x15, 0xc1, 0xcb, 0xaa, 0x53, 0x60, 0xc1, 0x0a, 0x1f, 0x1c, 0x16, 0x96, 0xc5, 0xaf, 0xc3, 0x65, 0xc6, 0x4c, 0xc3, 0xa1, 0xc5, 0x01, 0x4f, 0x69, 0x14, 0xc5, 0x9c, 0x3c, 0xc4, 0x1c, 0x34, 0x44, 0x54, 0x54, 0x1a, 0xac, 0xbc, 0xc4, 0x5a, 0x44, 0x9c, 0x51, 0x43, 0x1c, 0x04, 0x39, 0xc4, 0x4c, 0x4f, 0x44, 0x1c, 0x43, 0xc1, 0xc9, 0x4b, 0xac, 0x63, 0x59, 0x31, 0x15, 0x4c, 0x9c, 0x4b, 0xcb, 0x13, 0xf0, 0x4c, 0x4c, 0x13, 0xac, 0x4c, 0x44, 0xc1, 0xc4, 0xc0, 0xcb, 0x41, 0x44, 0x33, 0x6a, 0x5a, 0x1c, 0xaa, 0x1c, 0x01, 0xbb, 0xf3, 0xc4, 0x44, 0xbf, 0x53, 0xc1, 0x41, 0x03, 0x9c, 0xff, 0x4b, 0x5c, 0xaa, 0x1c, 0x94, 0xc4, 0x95, 0xca, 0x96, 0x41, 0x36, 0x41, 0x31, 0xa6, 0xc1, 0xac, 0x13, 0xcc, 0xfa, 0xf4, 0x54, 0x0a, 0xcc, 0x1c, 0x00, 0x60, 0x16, 0xab, 0x61, 0xcc, 0x01, 0x60, 0x60, 0x31, 0x01, 0xca, 0x1f, 0x46, 0x01, 0x90, 0xc0, 0xfb, 0x64, 0xcc, 0xc3, 0x4a, 0x0b, 0xa9, 0xc4, 0x9c, 0x16, 0x55, 0xa4, 0x4c, 0xcc, 0xc4, 0x45, 0x64, 0x31, 0x11, 0x49, 0x1c, 0x5b, 0xb4, 0x64, 0x64, 0x0a, 0x44, 0x49, 0x45, 0x1b, 0x64, 0x60, 0x31, 0x4c, 0xb9, 0x91, 0xb1, 0xca, 0x16, 0x64, 0xc5, 0xcc, 0x14, 0x41, 0x63, 0xc4, 0x03, 0x45, 0x54, 0x64, 0x0c, 0xbc, 0x46, 0x33, 0xc0, 0xab, 0xf4, 0x41, 0x9c, 0x51, 0xb4, 0xcc, 0xac, 0x01, 0x44, 0xc1, 0x0c, 0xcc, 0x64, 0x44, 0xf4, 0x3b, 0xc1, 0x91, 0x40, 0xcc, 0x10, 0xcf, 0x4b, 0x9a, 0x94, 0xab, 0x1c, 0x01, 0x03, 0x01, 0x00, 0x01, 0x01, 0x41, 0x01, 0x00, 0x1a, 0x9c, 0x6b, 0x04, 0x11, 0x91, 0xc0, 0x30, 0xac, 0xc3, 0x11, 0xc6, 0x0c, 0x4b, 0x6b, 0x14, 0x46, 0x0c, 0x6c, 0xab, 0xcc, 0xb6, 0xc6, 0x46, 0x41, 0x14, 0x1c, 0x6c, 0x0c, 0x39, 0x15, 0x1a, 0x49, 0xac, 0xbf, 0xc5, 0x9a, 0xfc, 0x40, 0x4f, 0x3b, 0xc5, 0xaa, 0xcc, 0xa1, 0x14, 0x15, 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0xf0, 0x5c, 0xcc, 0x43, 0x14, 0x16, 0x4b, 0xa0, 0x41, 0xf4, 0x1f, 0xc4, 0x5f, 0xc1, 0xcc, 0xca, 0xa0, 0x1b, 0xb0, 0x45, 0x15, 0xc4, 0xc1, 0x94, 0x31, 0x44, 0x54, 0xb1, 0x31, 0x91, 0x96, 0x44, 0xbc, 0xc1, 0x0f, 0xb4, 0xfc, 0xba, 0xa4, 0xf1, 0xb1, 0xff, 0x09, 0x01, 0x41, 0x41, 0x00, 0xc4, 0x34, 0x13, 0x30, 0x1a, 0x40, 0x14, 0xc3, 0x99, 0x11, 0x9f, 0xf1, 0x9c, 0xcc, 0xa4, 0x4c, 0xa1, 0x44, 0xa4, 0xc1, 0x9b, 0x40, 0xc3, 0x4f, 0xc5, 0xcc, 0x44, 0x56, 0x4c, 0xab, 0x94, 0xca, 0x00, 0x16, 0x90, 0x34, 0xc9, 0x5c, 0x0c, 0xb4, 0x9c, 0xb4, 0x10, 0x04, 0xac, 0x04, 0x41, 0xcc, 0xb4, 0xca, 0xca, 0x14, 0x14, 0x4c, 0x41, 0x4c, 0x01, 0xf9, 0x0c, 0x34, 0xc1, 0xfb, 0x53, 0x1c, 0xb1, 0x44, 0x44, 0x3c, 0xf4, 0xcf, 0x4f, 0xc1, 0x54, 0x15, 0x4c, 0x04, 0x40, 0x14, 0xc6, 0xf5, 0x4c, 0x1c, 0xf4, 0x6c, 0xc4, 0x6a, 0x1c, 0x44, 0x6b, 0x59, 0xc3, 0x19, 0xc3, 0x94, 0x4b, 0x63, 0xa5, 0x9c, 0x1c, 0x11, 0x4c, 0x59, 0xa4, 0x01, 0x6c, 0x49, 0x10, 0x41, 0xcf, 0x5b, 0xbc, 0xbc, 0xca, 0x43, 0x41, 0x64, 0x14, 0x1b, 0x46, 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0x04, 0xa1, 0x5f, 0x34, 0xc1, 0x3c, 0x4f, 0x4c, 0xfc, 0xf6, 0xab, 0xc4, 0xb5, 0xcb, 0x49, 0x44, 0x61, 0x64, 0x44, 0x44, 0x59, 0x01, 0xb4, 0xba, 0x41, 0x40, 0xa9, 0xc4, 0xc1, 0x15, 0x44, 0xcf, 0x0b, 0xb6, 0xa1, 0x13, 0xc4, 0x9a, 0x4f, 0xc0, 0xaf, 0xbb, 0x13, 0x3c, 0x04, 0x3c, 0xf5, 0xc0, 0x6a, 0x36, 0x54, 0x1a, 0xc4, 0x4c, 0xa9, 0x4c, 0xb3, 0xb5, 0x53, 0x44, 0x13, 0xba, 0x1c, 0x34, 0xcc, 0xca, 0x14, 0xcc, 0x9c, 0x94, 0xc4, 0x59, 0xc4, 0x49, 0x51, 0xc4, 0x0f, 0x40, 0xc1, 0x06, 0xb5, 0x05, 0xa4, 0x66, 0x3a, 0x91, 0x94, 0xc0, 0x6c, 0x99, 0x1b, 0xa3, 0x33, 0x15, 0x4b, 0x39, 0x4f, 0x39, 0xca, 0x54, 0x4f, 0x14, 0x9c, 0xcf, 0xab, 0x54, 0x01, 0x41, 0x40, 0x0b, 0x4c, 0xcc, 0xc1, 0x15, 0x34, 0x1a, 0xc5, 0x4b, 0xbc, 0xfc, 0xa4, 0xc4, 0x04, 0x4c, 0x4c, 0x19, 0xc4, 0x6c, 0x91, 0x46, 0x44, 0x15, 0xb6, 0x6c, 0xa3, 0xc3, 0xc1, 0x9b, 0x3c, 0x04, 0x36, 0xc3, 0xbb, 0x30, 0xb5, 0xff, 0xc5, 0x4f, 0x1b, 0xf4, 0x46, 0x9a, 0x46, 0x6b, 0x94, 0xff, 0x1a, 0x99, 0x40, 0xcf, 0x63, 0x44, 0x41, 0xbc, 0x65, 0xb0, 0x3b, 0xb0, 0xca, 0xc9, 0xb4, 0x1c, 0x90, 0xb0, 0xc0, 0x54, 0x61, 0xb4, 0x5c, 0x4c, 0x94, 0x1c, 0x14, 0x1b, 0x44, 0x56, 0x4f, 0xfa, 0x11, 0x0c, 0x14, 0x34, 0x1c, 0x59, 0xaf, 0x44, 0x3c, 0xac, 0x49, 0x9c, 0xbf, 0x1c, 0xb4, 0x41, 0xa4, 0x4f, 0xbc, 0x09, 0x01, 0x0a, 0xf4, 0x0c, 0x41, 0xc9, 0xb4, 0x41, 0xc4, 0xf4, 0x93, 0x04, 0x14, 0xc9, 0xc1, 0xc4, 0x3f, 0xc5, 0xc0, 0xc4, 0xb5, 0x13, 0x45, 0x61, 0xa1, 0x9c, 0x15, 0xbc, 0xa4, 0x01, 0x41, 0x40, 0x0f, 0x0f, 0xcf, 0x5a, 0xac, 0xcc, 0x3b, 0xc6, 0x35, 0x01, 0x6c, 0x43, 0xa4, 0xaa, 0xcc, 0x45, 0xb5, 0x61, 0x6b, 0xa3, 0x0a, 0x9a, 0x0b, 0x43, 0x40, 0xc1, 0x44, 0xa6, 0xf4, 0xac, 0x93, 0x49, 0x49, 0x30, 0x4c, 0xa9, 0x3b, 0x01, 0xc3, 0xf3, 0xa4, 0x13, 0xc1, 0xf3, 0xa1, 0x91, 0x69, 0xfc, 0xc1, 0x33, 0x9a, 0xc6, 0xc0, 0x01, 0x5a, 0x34, 0xa1, 0x4c, 0x44, 0xfb, 0x0c, 0xca, 0x4a, 0x4c, 0xc9, 0x35, 0x4c, 0xb3, 0x11, 0x06, 0x03, 0xc3, 0x34, 0x4c, 0x04, 0xb5, 0x4c, 0xca, 0x4b, 0xcf, 0xa6, 0x4a, 0x66, 0x5b, 0x64, 0x0c, 0xc0, 0xc6, 0x39, 0x64, 0xc0, 0xb4, 0xc4, 0x91, 0x63, 0xb9, 0x3c, 0x1b, 0x10, 0x6c, 0x9c, 0xc0, 0x30, 0x46, 0xcf, 0x41, 0x04, 0x41, 0x1c, 0x4c, 0xfc, 0x6f, 0xbf, 0x1c, 0x5b, 0xab, 0x16, 0xbb, 0x31, 0xb5, 0xb4, 0x13, 0x49, 0xf4, 0xb1, 0x4c, 0xa9, 0xac};
unsigned int certificates_esp8266_bin_key_len = 1190;
unsigned char certificates_esp8266_bin_crt[] = { 0x30, 0x41, 0x03, 0x5a, 0x30, 0x41, 0x01, 0x41, 0xa0, 0x03, 0x01, 0x01, 0x01, 0x01, 0x15, 0x00, 0x4a, 0x91, 0xc5, 0xbb, 0x44, 0x14, 0x4a, 0x69, 0xf5, 0x51, 0x41, 0x69, 0x4c, 0x13, 0xc4, 0xb4, 0x49, 0xc6, 0x1f, 0x6f, 0x30, 0x0c, 0xaa, 0x09, 0x1a, 0x46, 0x44, 0x46, 0xf4, 0x0c, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, 0x4c, 0x31, 0x4b, 0x30, 0x49, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x0c, 0x41, 0x41, 0x6c, 0x61, 0x4a, 0x6f, 0x6c, 0x10, 0x54, 0x65, 0x61, 0x10, 0x53, 0x65, 0x41, 0x46, 0x69, 0x63, 0x65, 0x43, 0x10, 0x4f, 0x3c, 0x41, 0x6c, 0x61, 0x4a, 0x6f, 0x6c, 0x1c, 0x63, 0x6f, 0x6c, 0x10, 0x49, 0x6c, 0x63, 0x1c, 0x10, 0x4c, 0x3c, 0x53, 0x65, 0x61, 0x44, 0x44, 0x6c, 0x65, 0x10, 0x53, 0x54, 0x3c, 0x54, 0x61, 0x43, 0x64, 0x69, 0x6c, 0x64, 0x44, 0x6f, 0x6c, 0x10, 0x43, 0x3c, 0x55, 0x53, 0x30, 0x1c, 0x14, 0x0c, 0x31, 0x36, 0x30, 0x39, 0x30, 0x31, 0x31, 0x35, 0x34, 0x31, 0x31, 0x30, 0x5a, 0x14, 0x0c, 0x34, 0x39, 0x31, 0x31, 0x33, 0x31, 0x31, 0x33, 0x35, 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unsigned int certificates_esp8266_bin_crt_len = 862;
const char* AWS_endpoint = "aaaaaaaaaaaaaa.iot.us-west-2.amazonaws.com"; //MQTT broker ip
const char* ssid = "Wifi_ssid";
const char* password = "Wifi_password";
void callback(char* topic, byte* payload, unsigned int length) {
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++)
Serial.print((char)payload[i]);
Serial.println();
}
WiFiClientSecure espClient;
PubSubClient client(AWS_endpoint, 8883, callback, espClient); //set MQTT port number to 8883
long lastMsg = 0;
char msg[50];
int value = 0;
void setup() {
Serial.begin (115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
espClient.setCertificate(certificates_esp8266_bin_crt, certificates_esp8266_bin_crt_len);
espClient.setPrivateKey(certificates_esp8266_bin_key, certificates_esp8266_bin_key_len);
//espClient.setCACert(certificates_esp8266_bin_CA, certificates_esp8266_bin_CA_len);
}
void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Create a random client ID
String clientId = "ESP8266Client-";
clientId += String(random(0xffff), HEX);
// Attempt to connect
if (client.connect(clientId.c_str())) {
Serial.println("connected");
client.subscribe("inTopic");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}
void loop() {
if (!client.connected()) {
reconnect();
}
client.loop();
long now = millis();
if (now - lastMsg > 2000) {
lastMsg = now;
++value;
snprintf (msg, 75, "hello world #%ld", value);
Serial.print("Publish message: ");
Serial.println(msg);
client.publish("outTopic", msg);
Serial.print("Heap: "); Serial.println(ESP.getFreeHeap()); //Low heap can cause problems
}
}