ocoge/blocks/sensors/bme280/index.js

/********* */
/** BME280 */
/********* */
Blockly.Blocks['ugj_bme280'] = {
    init: function () {
        this.appendDummyInput()
            .appendField("BME280（アドレス")
            .appendField(new Blockly.FieldDropdown([["0x76", "0x76"], ["0x77", "0x77"]]), "addr")
            .appendField("）の計測値を取得");
        this.setInputsInline(true);
        this.setPreviousStatement(true, null);
        this.setNextStatement(true, null);
        this.setStyle('sensor_blocks');
        this.setTooltip("環境センサーBME280で、気温（摂氏）、湿度（％）、気圧（hPa）を計測します。計測結果は計測値ブロックで参照します。");
        this.setHelpUrl("");
    }
};
Blockly.JavaScript['ugj_bme280'] = function (block) {
    var dropdown_addr = block.getFieldValue('addr');
    Blockly.JavaScript.provideFunction_(
        'require_gpio', [`const _pi = require('@ocoge.club/` + apptool.gpio_backend + `');`]
    );
    let modpath = apptool.path.join(apptool.blocks_dir, 'sensors', 'bme280', 'BME280x.js');
    Blockly.JavaScript.provideFunction_(
        'require_bme280', [`const _bme280 = require('${modpath}');`]
    );
    var code = `const options = {
    i2cBusNo: ${apptool.i2c_bus},
    i2cAddress: ${dropdown_addr}
  };
  await _bme280.init(options);
  let _thp = await _bme280.readSensorData();
  let _bmedata = [];
  _bmedata[0] = Math.round(_thp.temperature_C * 10) / 10;
  _bmedata[1] = Math.round(_thp.humidity * 10) / 10;
  _bmedata[2] = Math.round(_thp.pressure_hPa);
  await _bme280.cancel();
      `;
    return code;
};
Blockly.Blocks['ugj_bme280_data'] = {
    init: function () {
        this.appendDummyInput()
            .appendField(new Blockly.FieldDropdown([["気温", "0"], ["湿度", "1"], ["気圧", "2"]]), "thp");
        this.setInputsInline(true);
        this.setOutput(true, null);
        this.setStyle('sensor_blocks');
        this.setTooltip("BME280 の計測値を返します。");
        this.setHelpUrl("");
    }
};
Blockly.JavaScript['ugj_bme280_data'] = function (block) {
    var dropdown_thp = block.getFieldValue('thp');
    var code = `_bmedata[${dropdown_thp}]`;
    return [code, Blockly.JavaScript.ORDER_ATOMIC];
};

flyout_contents = flyout_contents.concat([
    {
        "kind": "label",
        "text": "温湿度気圧センサー BME280",
        "web-line": "4.0",
        "web-line-width": "200"
    },
    {
        "kind": "block",
        "type": "ugj_bme280",
        "fields": {
            "addr": "0x76"
        }
    },
    {
        "kind": "block",
        "type": "ugj_bme280_data",
        "fields": {
            "thp": "0"
        }
    }
]);