TTN Smart Sensor (Dnt)

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// Payoad parser dnt-LW-WTH // v1.0.1 var CMD_GET_STATUS_INTERVAL = 0; var CMD_GET_STATUS_PARAMETER_ENABLE_REGISTER = 2; var CMD_GET_STATUS = 4; var CMD_GET_BAT_VOLTAGE = 5; var CMD_GET_ACTIVE_MODE = 6; var CMD_GET_ERROR = 7; var CMD_GET_DEVICE_TIME = 8; var CMD_GET_DEVICE_TIME_CONFIG = 10; var CMD_GET_MODE_STATUS = 12; var CMD_GET_HOLIDAY_MODE_CONFIG = 18; var CMD_GET_WEEK_PROGRAMM = 22; var CMD_GET_SET_POINT = 33; var CMD_GET_TEMPERATURE_OFFSET = 36; var CMD_GET_ROOM_TEMPERATURE = 38; var CMD_GET_WINDOW_OPEN_STATUS = 46; var CMD_GET_WINDOW_OPEN_CONFIG = 48; var RESPONSE_CMD_FAILED = 54; var CMD_GET_DISPLAY_MODE = 55; var CMD_GET_MINIMUM_SET_POINT = 57; var CMD_GET_MAXIMUM_SET_POINT = 59; var CMD_GET_MINIMUM_HOLIDAY_SET_POINT = 61; var CMD_GET_MAXIMUM_HOLIDAY_SET_POINT = 63; var CMD_GET_HOLIDAY_SET_POINT = 65; var CMD_GET_HUMIDITY = 67; var GET_COPRO_VERSION = 244; var GET_HW_LOCK = 245; var GET_TIME_TILL_REJOIN = 247 var GET_LORAWAN_DATARATE = 248; var GET_REJOIN_CONFIG = 250; var GET_ALL_CONFIG = 252; var GET_DEVICE_INFO = 255; var STATUS_PARAM_BAT_VOLTAGE_BIT = 0x01; var STATUS_PARAM_CTRL_INPUT_ROOM_TEMPERATURE = 0x02; var STATUS_PARAM_CTRL_INPUT_ROOM_HUMIDITY = 0x04; var STATUS_PARAM_CTRL_INPUT_SET_POINT_TEMPERATURE = 0x08; var STATUS_PARAM_CTRL_MISC_FLAGS = 0x10; var MISC_FLAG_WINDOW_OPEN = 0x01; var MISC_FLAG_HOLIDAY_MODE_PENDING = 0x02; var MISC_FLAG_CURRENT_MODE_MSK = 0x04 | 0x08; var MISC_FLAG_TEMPERATURE_NOT_RISING = 0x10; function decodeUplink(input){ var payload = input.bytes; var decoded = {}; var index = 0; var next_field = 0; var config = {}; var copro_version = {}; var device_time = {}; while( index < payload.length ){ next_field = payload[index++]; if( next_field == CMD_GET_STATUS_INTERVAL ){ decoded.status_interval = (payload[index++] * 30) + 30; } else if( next_field == CMD_GET_STATUS_PARAMETER_ENABLE_REGISTER ){ decoded.status_param_en_register = payload[index++]; } else if( next_field == CMD_GET_STATUS ){ var tx_en_reg = payload[index++]; if( tx_en_reg & STATUS_PARAM_BAT_VOLTAGE_BIT ){ decoded.voltage = (payload[index++] * 10) + 1500; } if( tx_en_reg & STATUS_PARAM_CTRL_INPUT_ROOM_TEMPERATURE ){ decoded.room_temperature = (payload[index++] << 8); decoded.room_temperature += payload[index++]; } if( tx_en_reg & STATUS_PARAM_CTRL_INPUT_ROOM_HUMIDITY ){ decoded.room_humidity = payload[index++]; } if( tx_en_reg & STATUS_PARAM_CTRL_INPUT_SET_POINT_TEMPERATURE ){ decoded.set_point_temperature = (payload[index++] * 0.5).toFixed(1); } if( tx_en_reg & STATUS_PARAM_CTRL_MISC_FLAGS ){ var flags = payload[index++]; decoded.misc_flags = decoded.misc_flags || {}; decoded.misc_flags.window_open = 0; decoded.misc_flags.holiday_mode_pending = 0; decoded.misc_flags.active_mode = POSSIBLE_ACTIVE_MODES[(flags & MISC_FLAG_CURRENT_MODE_MSK) >> 2]; if( flags & MISC_FLAG_WINDOW_OPEN ){ decoded.misc_flags.window_open = 1; } if( flags & MISC_FLAG_HOLIDAY_MODE_PENDING ){ decoded.misc_flags.holiday_mode_pending = 1; } if( flags & MISC_FLAG_TEMPERATURE_NOT_RISING ){ decoded.misc_flags.temperature_too_low = 1; } } } else if( next_field == CMD_GET_BAT_VOLTAGE ){ decoded.voltage = (payload[index++] * 10) + 1500; } else if( next_field == CMD_GET_ACTIVE_MODE ){ decoded.active_mode = POSSIBLE_ACTIVE_MODES[payload[index++]]; } else if( next_field == CMD_GET_ERROR ){ decoded.error = DEVICE_ERRORS[payload[index++]]; } else if( next_field == CMD_GET_DEVICE_TIME ){ decoded.device_time = device_time; decoded.device_time.local = decoded.device_time.local || {}; decoded.device_time.local.second = {}; decoded.device_time.local.minute = {}; decoded.device_time.local.hour = {}; decoded.device_time.local.day = {}; decoded.device_time.local.weekday = {}; decoded.device_time.local.month = {}; decoded.device_time.local.year = {}; decoded.device_time.local.is_dst = {}; decoded.device_time.local.utc_offset = {}; decoded.device_time.local.second = payload[index++] & 0x1F; decoded.device_time.local.minute = (payload[index] >> 2) & 0x3F; decoded.device_time.local.hour = ((payload[index++] & 0x03) << 3) + (payload[index] >> 5); decoded.device_time.local.day = payload[index++] & 0x1F; decoded.device_time.local.is_dst = !!(payload[index] & 0x80); decoded.device_time.local.weekday = WEEKDAY[(payload[index] >> 4) & 0x07]; decoded.device_time.local.month = MONTH[payload[index++] & 0x0F]; decoded.device_time.local.year = payload[index++] + 2000; decoded.device_time.local.utc_offset = (payload[index++] * 0.25 - 12).toFixed(2); } else if( next_field == CMD_GET_DEVICE_TIME_CONFIG ){ decoded.device_time = decoded.device_time || {}; decoded.device_time.config = decoded.device_time.config || {}; decoded.device_time.config.utc_dst_begin = {}; decoded.device_time.config.utc_dst_end = {}; decoded.device_time.config.auto_time_sync_en = !!(payload[index] >> 7); decoded.device_time.config.utc_offset = ((payload[index++] & 0x7F) * 0.25 - 12).toFixed(2); decoded.device_time.config.utc_dst_begin.week_of_month = WEEK_OF_MONTH[ (payload[index] >> 4) & 0x0F ]; decoded.device_time.config.utc_dst_begin.month = MONTH[payload[index++] & 0x0F]; decoded.device_time.config.utc_dst_begin.weekday = WEEKDAY[payload[index] >> 5]; decoded.device_time.config.utc_dst_begin.hour = (payload[index++] & 0x0F); decoded.device_time.config.utc_dst_offset = ((payload[index++] & 0x7F) * 0.25 - 12).toFixed(2); decoded.device_time.config.utc_dst_end.week_of_month = WEEK_OF_MONTH[ (payload[index] >> 4) & 0x0F ]; decoded.device_time.config.utc_dst_end.month = MONTH[payload[index++] & 0x0F]; decoded.device_time.config.utc_dst_end.weekday = WEEKDAY[payload[index] >> 5]; decoded.device_time.config.utc_dst_end.hour = (payload[index++] & 0x0F); decoded.device_time.config.utc_dst_begin.minute = (payload[index] >> 4) * 5; decoded.device_time.config.utc_dst_end.minute = (payload[index++] & 0x0F) * 5; } else if( next_field == CMD_GET_MODE_STATUS ){ decoded.mode_status = decoded.mode_status || {}; decoded.mode_status.sub_modes = decoded.mode_status.sub_modes || {}; decoded.mode_status.active_main_mode = (payload[index] >> 6) & 0x03; decoded.mode_status.week_programm_sel = (payload[index+1] >> 6) & 0x03; decoded.mode_status.sub_modes.holiday_en = (payload[index] >> 5) & 0x01; decoded.mode_status.sub_modes.holiday_pend = (payload[index] >> 4) & 0x01; decoded.mode_status.sub_modes.frost_protection_en = (payload[index] >> 2) & 0x01; decoded.mode_status.sub_modes.window_open_en = (payload[index] >> 1) & 0x01; decoded.mode_status.sub_modes.emergency_en = payload[index] & 0x01; index += 2; } else if( next_field == CMD_GET_HOLIDAY_MODE_CONFIG){ decoded.heating_control = decoded.heating_control || {}; decoded.heating_control.mode = decoded.heating_control.mode || {}; decoded.heating_control.mode.holiday = decoded.heating_control.mode.holiday || {}; decoded.heating_control.mode.holiday = {}; decoded.heating_control.mode.holiday.begin = decoded.heating_control.mode.holiday.begin || {}; decoded.heating_control.mode.holiday.end = decoded.heating_control.mode.holiday.end || {}; decoded.heating_control.mode.holiday.begin.minute = ((payload[index] >> 2) & 0x0F) * 5; decoded.heating_control.mode.holiday.begin.hour = ((payload[index++] & 0x03) << 3) + (payload[index] >> 5); decoded.heating_control.mode.holiday.begin.day = payload[index++] & 0x1F; decoded.heating_control.mode.holiday.end.minute = ((payload[index] >> 2) & 0x0F) * 5; decoded.heating_control.mode.holiday.end.hour = ((payload[index++] & 0x03) << 3) + (payload[index] >> 5); decoded.heating_control.mode.holiday.end.day = payload[index++] & 0x1F; decoded.heating_control.mode.holiday.begin.month = MONTH[payload[index] >> 4]; decoded.heating_control.mode.holiday.end.month = MONTH[payload[index++] & 0x0F]; decoded.heating_control.mode.holiday.begin.year = payload[index++] + 2000; decoded.heating_control.mode.holiday.end.year = payload[index++] + 2000; decoded.heating_control.mode.holiday.set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_WEEK_PROGRAMM){ decoded.heating_control = decoded.heating_control || {}; decoded.heating_control.mode = decoded.heating_control.mode || {}; decoded.heating_control.mode.auto = decoded.heating_control.mode.auto || {}; var week_program_nbr = (payload[index] >> 4) & 0x03; var nbr_time_switching_points = payload[index++] & 0x0F; const time_switching_point = {}; switch(week_program_nbr) { case 0: decoded.heating_control.mode.auto.week_program_1 = {}; break; case 1: decoded.heating_control.mode.auto.week_program_2 = {}; break; case 2: decoded.heating_control.mode.auto.week_program_3 = {}; break; default: break; } var weekdays_coded = 0; for(let i = 0; i < nbr_time_switching_points; i++) { time_switching_point.weekdays = ""; time_switching_point.minute = (payload[index] >> 4) * 5; time_switching_point.hour = ((payload[index++] & 0x0F) << 1) + (payload[index] >> 7); weekdays_coded = payload[index++] & 0x7F; time_switching_point.set_point_temperature = ((payload[index]& 0x7F)* 0.5).toFixed(1); time_switching_point.is_low_power_time_slot = (payload[index++] >> 7) & 0x01 if( weekdays_coded == MO_TO_FR_MSK ){ time_switching_point.weekdays += "MO - FR"; } else if( weekdays_coded == WEEKEND_MSK ){ time_switching_point.weekdays += "Weekend"; } else if( weekdays_coded == WEEK_MSK ){ time_switching_point.weekdays += "All week"; } else{ for( let j = 0; j < 7; j++ ){ if( weekdays_coded & (1 << j) ) { if( time_switching_point.weekdays !== "" ){ time_switching_point.weekdays += " | "; } time_switching_point.weekdays += WEEKDAY[j]; } } } switch(week_program_nbr) { case 0: decoded.heating_control.mode.auto.week_program_1[i] = Object.assign( {}, time_switching_point); break; case 1: decoded.heating_control.mode.auto.week_program_2[i] = Object.assign( {}, time_switching_point); break; case 2: decoded.heating_control.mode.auto.week_program_3[i] = Object.assign( {}, time_switching_point); break; default: break; } } } else if( next_field == CMD_GET_SET_POINT ){ decoded.set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_TEMPERATURE_OFFSET ){ decoded.temperature_offset = ((payload[index++] * 0.1) - 6.4).toFixed(1); } else if( next_field == CMD_GET_ROOM_TEMPERATURE ){ decoded.room_temperature = (payload[index++] << 8); decoded.room_temperature += payload[index++]; } else if( next_field == CMD_GET_WINDOW_OPEN_STATUS ){ decoded.window_open_status = payload[index++]; } else if( next_field == CMD_GET_WINDOW_OPEN_CONFIG ){ decoded.window_open_config = {}; decoded.window_open_config.detection_source = (payload[index] >> 3) & 0x01; decoded.window_open_config.enable_mode_config = payload[index++] & 0x07; decoded.window_open_config.temperature_delta = payload[index] & 0x1F; decoded.window_open_config.window_open_duration = (payload[index++] >> 5) & 0x07; decoded.window_open_config.window_open_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == RESPONSE_CMD_FAILED ){ var nb_failed_cmds = payload[index++]; var errors = []; for( var i = 0; i < nb_failed_cmds; i++ ){ errors.push(payload[index++]); } decoded.failed_commands = errors; } else if( next_field == CMD_GET_DISPLAY_MODE ){ decoded.display_mode = payload[index++]; } else if( next_field == CMD_GET_MINIMUM_SET_POINT ){ decoded.minimum_set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_MAXIMUM_SET_POINT ){ decoded.maximum_set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_MINIMUM_HOLIDAY_SET_POINT ){ decoded.minimum_holiday_set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_MAXIMUM_HOLIDAY_SET_POINT ){ decoded.maximum_holiday_set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_HOLIDAY_SET_POINT ){ decoded.holiday_set_point_temperature = (payload[index++] * 0.5).toFixed(1); } else if( next_field == CMD_GET_HUMIDITY ){ decoded.humidity = payload[index++]; } else if( next_field == GET_COPRO_VERSION ) { decoded.copro_version = copro_version; copro_version.fw_version = bytes[index++] + "."; copro_version.fw_version += bytes[index++] + "."; copro_version.fw_version += bytes[index++]; copro_version.bl_version = bytes[index++] + "."; copro_version.bl_version += bytes[index++] + "."; copro_version.bl_version += bytes[index++]; } else if( next_field == GET_HW_LOCK ){ decoded.device_hw_lock = payload[index++]; } else if( next_field == GET_TIME_TILL_REJOIN ){ decoded.time_till_rejoin = int24(payload.slice(index, index + 3)); index += 3; } else if( next_field == GET_LORAWAN_DATARATE ){ decoded.datarate_config = payload[index++]; } else if( next_field == GET_REJOIN_CONFIG ){ decoded.rejoin_config = int16(payload.slice(index, index + 2)); index += 2; } else if( next_field == GET_DEVICE_INFO ){ decoded.device_info = read_device_info(payload.slice(index, index + 10)); index += 10; } } return { data: decoded, warnings: [], errors: [] }; } function read_device_info(bytes){ var index = 0; var info = {} info.device_type = (bytes[index++] << 16); info.device_type += (bytes[index++] << 8); info.device_type += bytes[index++]; info.fw_version = bytes[index++] + "."; info.fw_version += bytes[index++] + "."; info.fw_version += bytes[index++]; info.bl_version = bytes[index++] + "."; info.bl_version += bytes[index++] + "."; info.bl_version += bytes[index++]; info.hw_version = bytes[index++]; return info; } var POSSIBLE_ACTIVE_MODES = [ "MODE_MANU", "MODE_AUTO_LOW_POWER", "MODE_AUTO", "MODE_HOLIDAY", "MODE_EMERGENCY", "MODE_FROST_PROTECTION", "INVALID", "MODE_WINDOW_OPEN", "MODE_HOLIDAY", ]; var DEVICE_ERRORS = [ "NO_ERROR", "SHT20_ERROR", ]; const MONTH = { 0: "JANUARY", 1: "FEBRUARY", 2: "MARCH", 3: "APRIL", 4: "MAY", 5: "JUNE", 6: "JULY", 7: "AUGUST", 8: "SEPTEMBER", 9: "OCTOBER", 10: "NOVEMBER", 11: "DECEMBER" }; const WEEK_OF_MONTH = { 1: "1st", 2: "2nd", 3: "3rd", 4: "4th", 5: "last" }; const WEEKDAY = { 0: "SU", 1: "MO", 2: "TU", 3: "WE", 4: "TH", 5: "FR", 6: "SA" }; const MO_TO_FR_MSK = 0x3E; const WEEKEND_MSK = 0x41; const WEEK_MSK = 0x7F; function int16(bytes){ return ((bytes[0] << 8) | bytes[1]); } function int24(bytes){ return ((bytes[0] << 16) | (bytes[1] << 8) | bytes[2]); } function int32(bytes){ return ((bytes[0] << 24) | (bytes[1] << 16) | (bytes[2] << 8) | bytes[3]); } function decodeDownlink(input) { return { data: { bytes: input.bytes }, warnings: [], errors: [] } }