DRAGINO - Lse 01

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/* eslint-disable prettier/prettier */ /* eslint-disable no-bitwise */ /* * LSE01 * Payload total 11 bytes * value -> BAT (unit V) - Size(bytes) = 2 * Temperature(RESERVED) - Size(bytes) = 2 * Soil Moisture - Size(bytes) = 2 * Soil Temperature - Size(bytes) = 2 * Soil Conductivity - Size(bytes) = 1 * Digital Interrupt- Size(bytes) = 1 */ function Decoder(bytes) { // Decode an uplink message from a buffer // (array) of bytes to an object of fields. let value=(bytes[0]<<8 | bytes[1]) & 0x3FFF; const batV=value/1000; value=bytes[2]<<8 | bytes[3]; if(bytes[2] & 0x80) {value |= 0xFFFF0000;} const tempc_ds18b20=(value/10).toFixed(2); value=bytes[4]<<8 | bytes[5]; const water_soil=(value/100).toFixed(2); value=bytes[6]<<8 | bytes[7]; let temp_soil; if((value & 0x8000)>>15 === 0) temp_soil=(value/100).toFixed(2); else if((value & 0x8000)>>15 === 1) temp_soil=((value-0xFFFF)/100).toFixed(2); value=bytes[8]<<8 | bytes[9]; const conduct_soil=(value); return [ {variable:"bat",value:batV,unit: "v"}, {variable:"tempc_ds18b20",value:tempc_ds18b20,unit:"°c"}, {variable:"soil_moisture",value:water_soil,unit:"%"}, {variable:"temp_soil",value:temp_soil,unit:"°c"}, {variable:"conduct_soil",value:conduct_soil,unit:"us/cm"}, ]; } const payload_raw = payload.find((x) => x.variable === "payload_raw" || x.variable === "payload" || x.variable === "data" || x.variable === "frm_payload"); if (payload_raw) { try { // Convert the data from Hex to Javascript Buffer. const buffer = Buffer.from(payload_raw.value, "hex"); const serie = new Date().getTime(); const payload_aux = Decoder(buffer); payload = payload.concat(payload_aux.map((x) => ({ ...x, serie }))); } catch (e) { // Print the error to the Live Inspector. console.error(e); // Return the variable parse_error for debugging. payload = [{ variable: "parse_error", value: e.message }]; } }