论坛 › 物联网 › StaticJsonBuffer is a class from ArduinoJson 5.

victor 发表于 2019-3-22 18:28:05

StaticJsonBuffer is a class from ArduinoJson 5.

Arduino:1.8.5 (Windows 10), 开发板："WiFiduino, 80 MHz, Flash, Disabled, 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 921600"

构建选项已变更，全部重新构建
sketch_mar22a:61: error: StaticJsonBuffer is a class from ArduinoJson 5. Please see arduinojson.org/upgrade to learn how to upgrade your program to ArduinoJson version 6

sketch_mar22a:90: error: StaticJsonBuffer is a class from ArduinoJson 5. Please see arduinojson.org/upgrade to learn how to upgrade your program to ArduinoJson version 6

exit status 1
StaticJsonBuffer is a class from ArduinoJson 5. Please see arduinojson.org/upgrade to learn how to upgrade your program to ArduinoJson version 6

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victor 发表于 2019-3-22 18:33:03

#include <ArduinoJson.h>
#include <PubSubClient.h>
#include <ESP8266WiFi.h>

#define WIFI_AP "haibucuo"
#define WIFI_PASSWORD "xxx"

#define TOKEN "jxxx"

#define GPIO0 0
#define GPIO2 2

#define GPIO0_PIN 3
#define GPIO2_PIN 5

char thingsboardServer[] = "iot.xiaodingchui.com";

WiFiClient wifiClient;

PubSubClient client(wifiClient);

int status = WL_IDLE_STATUS;

// We assume that all GPIOs are LOW
boolean gpioState[] = {false, false};

void setup() {
Serial.begin(115200);
// Set output mode for all GPIO pins
pinMode(GPIO0, OUTPUT);
pinMode(GPIO2, OUTPUT);
delay(10);
InitWiFi();
client.setServer( thingsboardServer, 1883 );
client.setCallback(on_message);
}

void loop() {
if ( !client.connected() ) {
    reconnect();
}

client.loop();
}

// The callback for when a PUBLISH message is received from the server.
void on_message(const char* topic, byte* payload, unsigned int length) {

Serial.println("On message");

char json;
strncpy (json, (char*)payload, length);
json = '\0';

Serial.print("Topic: ");
Serial.println(topic);
Serial.print("Message: ");
Serial.println(json);

// Decode JSON request
StaticJsonBuffer<200> jsonBuffer;
JsonObject& data = jsonBuffer.parseObject((char*)json);

if (!data.success())
{
    Serial.println("parseObject() failed");
    return;
}

// Check request method
String methodName = String((const char*)data["method"]);

if (methodName.equals("getGpioStatus")) {
    // Reply with GPIO status
    String responseTopic = String(topic);
    responseTopic.replace("request", "response");
    client.publish(responseTopic.c_str(), get_gpio_status().c_str());
} else if (methodName.equals("setGpioStatus")) {
    // Update GPIO status and reply
    set_gpio_status(data["params"]["pin"], data["params"]["enabled"]);
    String responseTopic = String(topic);
    responseTopic.replace("request", "response");
    client.publish(responseTopic.c_str(), get_gpio_status().c_str());
    client.publish("v1/devices/me/attributes", get_gpio_status().c_str());
}
}

String get_gpio_status() {
// Prepare gpios JSON payload string
StaticJsonBuffer<200> jsonBuffer;
JsonObject& data = jsonBuffer.createObject();
data = gpioState ? true : false;
data = gpioState ? true : false;
char payload;
data.printTo(payload, sizeof(payload));
String strPayload = String(payload);
Serial.print("Get gpio status: ");
Serial.println(strPayload);
return strPayload;
}

void set_gpio_status(int pin, boolean enabled) {
if (pin == GPIO0_PIN) {
    // Output GPIOs state
    digitalWrite(GPIO0, enabled ? HIGH : LOW);
    // Update GPIOs state
    gpioState = enabled;
} else if (pin == GPIO2_PIN) {
    // Output GPIOs state
    digitalWrite(GPIO2, enabled ? HIGH : LOW);
    // Update GPIOs state
    gpioState = enabled;
}
}

void InitWiFi() {
Serial.println("Connecting to AP ...");
// attempt to connect to WiFi network

WiFi.begin(WIFI_AP, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
}
Serial.println("Connected to AP");
}


void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
    status = WiFi.status();
    if ( status != WL_CONNECTED) {
      WiFi.begin(WIFI_AP, WIFI_PASSWORD);
      while (WiFi.status() != WL_CONNECTED) {
      delay(500);
      Serial.print(".");
      }
      Serial.println("Connected to AP");
    }
    Serial.print("Connecting to ThingsBoard node ...");
    // Attempt to connect (clientId, username, password)
    if ( client.connect("ESP8266 Device", TOKEN, NULL) ) {
      Serial.println( "" );
      // Subscribing to receive RPC requests
      client.subscribe("v1/devices/me/rpc/request/+");
      // Sending current GPIO status
      Serial.println("Sending current GPIO status ...");
      client.publish("v1/devices/me/attributes", get_gpio_status().c_str());
    } else {
      Serial.print( " [ rc = " );
      Serial.print( client.state() );
      Serial.println( " : retrying in 5 seconds]" );
      // Wait 5 seconds before retrying
      delay( 5000 );
    }
}
}

victor 发表于 2019-3-23 11:02:12

StaticJsonBuffer is a class from ArduinoJson 5. Please see arduinojson.org/upgrade to learn how to upgrade your program to ArduinoJson version 6

查看完整版本: StaticJsonBuffer is a class from ArduinoJson 5.