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blocklyでobjectを動かす。 その9

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概要

blocklyでobjectを動かして見る。
wemosで、Lチカ、やってみた。

写真

CIMG2929.JPG

ブロックを書く。


Blockly.Blocks.send = {
    init: function() {
        this.jsonInit({
        message0: "send %1",
        args0: [{
            type: "input_value",
            name: "TEXT"
        }],
        previousStatement: null,
        nextStatement: null,
        style: "text_blocks",
        tooltip: Blockly.Msg.TEXT_PRINT_TOOLTIP,
        helpUrl: Blockly.Msg.TEXT_PRINT_HELPURL
    })
}};

フローを書く。

image.png

objectを書く。


Blockly.JavaScript.send = function(a) {
    return "send_(" + (Blockly.JavaScript.valueToCode(a, "TEXT", Blockly.JavaScript.ORDER_NONE) || "''") + ");\n"
};

function send_(data) {
    var str = "http://192.168.10.8/off";
    if (data == 'on')
    {
      str= "http://192.168.10.8/on";
    }
    var xhr = new XMLHttpRequest();
    xhr.open("GET", str, false);
    xhr.send(null);
    if (xhr.status != 200)
    {
        alert("ng");
    }
    else
    {
        var res = xhr.responseText;
        alert(res);
    }
}

サンプルコード

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

const char * ssid = "";
const char * password = "";
ESP8266WebServer server(80);
const int led = 2;

void handleRoot() 
{
    server.send(200, "text/plain", "hello from esp8266!");
}
void handleNotFound()
{
    String message = "File Not Found\n\n";
    message += "URI: ";
    message += server.uri();
    message += "\nMethod: ";
    message += (server.method() == HTTP_GET) ? "GET" : "POST";
    message += "\nArguments: ";
    message += server.args();
    message += "\n";
    for (uint8_t i = 0; i < server.args(); i++)
    {
        message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
    }
    server.send(404, "text/plain", message);
}
void setup(void)
{
    pinMode(led, OUTPUT);
    digitalWrite(led, 0);
    Serial.begin(115200);
    WiFi.begin(ssid, password);
    Serial.println("");
    while (WiFi.status() != WL_CONNECTED) 
    {
        delay(500);
        Serial.print(".");
    }
    Serial.println("");
    Serial.print("Connected to ");
    Serial.println(ssid);
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());
    if (MDNS.begin("esp8266")) 
    {
        Serial.println("MDNS responder started");
    }
    server.on("/", handleRoot);
    server.on("/on", []() {
        digitalWrite(led, 1);
        Serial.println("on");
        server.send(200, "text/json", "{text: \"on\"}");
    });
    server.on("/off", []() {
        digitalWrite(led, 0);
        Serial.println("off");
        server.send(200, "text/json", "{text: \"off\"}");
    });
    server.onNotFound(handleNotFound);
    server.begin();
    Serial.println("HTTP server started");
}
void loop(void)
{
    server.handleClient();
}




成果物

以上。

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