“JsonUdpBeacon”的版本间的差异
来自YFRobotwiki
（以“ Json库 <pre> // Copyright Benoit Blanchon 2014-2016 // MIT License // // Arduino JSON library // https://github.com/bblanchon/ArduinoJson // If you like thi...”为内容创建页面） |
|||
| 第5行： | 第5行： | ||
<pre> | <pre> | ||
| − | // | + | // Send a JSON object on UDP at regular interval |
| − | + | ||
// | // | ||
| − | // | + | // You can easily test this program with netcat: |
| − | // | + | // $ nc -ulp 8888 |
| − | // | + | // |
| + | // by Benoit Blanchon, MIT License 2015-2016 | ||
| + | #include <SPI.h> | ||
| + | #include <Ethernet.h> | ||
#include <ArduinoJson.h> | #include <ArduinoJson.h> | ||
| − | + | byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}; | |
| + | IPAddress localIp(192, 168, 0, 177); | ||
| + | IPAddress remoteIp(192, 168, 0, 109); | ||
| + | unsigned int remotePort = 8888; | ||
| + | unsigned localPort = 8888; | ||
| + | EthernetUDP udp; | ||
| − | + | JsonObject& buildJson(JsonBuffer& jsonBuffer) { | |
| − | + | JsonObject& root = jsonBuffer.createObject(); | |
| − | + | ||
| − | + | JsonArray& analogValues = root.createNestedArray("analog"); | |
| + | for (int pin = 0; pin < 6; pin++) { | ||
| + | int value = analogRead(pin); | ||
| + | analogValues.add(value); | ||
} | } | ||
| − | + | JsonArray& digitalValues = root.createNestedArray("digital"); | |
| − | + | for (int pin = 0; pin < 14; pin++) { | |
| + | int value = digitalRead(pin); | ||
| + | digitalValues.add(value); | ||
| + | } | ||
| − | + | return root; | |
| − | + | } | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | void sendJson(JsonObject& json) { | |
| − | + | udp.beginPacket(remoteIp, remotePort); | |
| − | + | json.printTo(udp); | |
| + | udp.println(); | ||
| + | udp.endPacket(); | ||
| + | } | ||
| + | |||
| + | void setup() { | ||
| + | Ethernet.begin(mac, localIp); | ||
| + | udp.begin(localPort); | ||
} | } | ||
void loop() { | void loop() { | ||
| − | + | delay(1000); | |
| + | |||
| + | StaticJsonBuffer<300> jsonBuffer; | ||
| + | JsonObject& json = buildJson(jsonBuffer); | ||
| + | sendJson(json); | ||
} | } | ||
| + | |||
2016年8月22日 (一) 15:42的最后版本
// Send a JSON object on UDP at regular interval
//
// You can easily test this program with netcat:
// $ nc -ulp 8888
//
// by Benoit Blanchon, MIT License 2015-2016
#include <SPI.h>
#include <Ethernet.h>
#include <ArduinoJson.h>
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress localIp(192, 168, 0, 177);
IPAddress remoteIp(192, 168, 0, 109);
unsigned int remotePort = 8888;
unsigned localPort = 8888;
EthernetUDP udp;
JsonObject& buildJson(JsonBuffer& jsonBuffer) {
JsonObject& root = jsonBuffer.createObject();
JsonArray& analogValues = root.createNestedArray("analog");
for (int pin = 0; pin < 6; pin++) {
int value = analogRead(pin);
analogValues.add(value);
}
JsonArray& digitalValues = root.createNestedArray("digital");
for (int pin = 0; pin < 14; pin++) {
int value = digitalRead(pin);
digitalValues.add(value);
}
return root;
}
void sendJson(JsonObject& json) {
udp.beginPacket(remoteIp, remotePort);
json.printTo(udp);
udp.println();
udp.endPacket();
}
void setup() {
Ethernet.begin(mac, localIp);
udp.begin(localPort);
}
void loop() {
delay(1000);
StaticJsonBuffer<300> jsonBuffer;
JsonObject& json = buildJson(jsonBuffer);
sendJson(json);
}
更多建议和问题欢迎反馈至 YFRobot论坛
