TTN Smart Sensor (Smart-Parks)

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function get_num(x, min, max, precision, round) { var range = max - min; var new_range = (Math.pow(2, precision) - 1) / range; var back_x = x / new_range; if (back_x === 0) { back_x = min; } else if (back_x === (max - min)) { back_x = max; } else { back_x += min; } return Math.round(back_x * Math.pow(10, round)) / Math.pow(10, round); } function decodeUplink(input) { var data = {}; var bytes = input.bytes; var port = input.fPort; var cnt = 0; var resetCause_dict = { 0: "POWERON", 1: "EXTERNAL", 2: "SOFTWARE", 3: "WATCHDOG", 4: "FIREWALL", 5: "OTHER", 6: "STANDBY" }; // settings if (port === 3) { data.system_status_interval = (bytes[1] << 8) | bytes[0]; data.system_functions = {};//bytes[2]; data.system_functions.gps_periodic = ((bytes[2] >> 0) & 0x01) ? 1 : 0; data.system_functions.gps_triggered = ((bytes[2] >> 1) & 0x01) ? 1 : 0; data.system_functions.gps_hot_fix = ((bytes[2] >> 2) & 0x01) ? 1 : 0; data.system_functions.accelerometer_enabled = ((bytes[2] >> 3) & 0x01) ? 1 : 0; data.system_functions.light_enabled = ((bytes[2] >> 4) & 0x01) ? 1 : 0; data.system_functions.temperature_enabled = ((bytes[2] >> 5) & 0x01) ? 1 : 0; data.system_functions.humidity_enabled = ((bytes[2] >> 6) & 0x01) ? 1 : 0; data.system_functions.charging_enabled = ((bytes[2] >> 7) & 0x01) ? 1 : 0; data.lorawan_datarate_adr = {};//bytes[3]; data.lorawan_datarate_adr.datarate = bytes[3] & 0x0f; data.lorawan_datarate_adr.confirmed_uplink = ((bytes[3] >> 6) & 0x01) ? 1 : 0; data.lorawan_datarate_adr.adr = ((bytes[3] >> 7) & 0x01) ? 1 : 0; data.gps_periodic_interval = (bytes[5] << 8) | bytes[4]; data.gps_triggered_interval = (bytes[7] << 8) | bytes[6]; data.gps_triggered_threshold = bytes[8]; data.gps_triggered_duration = bytes[9]; data.gps_cold_fix_timeout = (bytes[11] << 8) | bytes[10]; data.gps_hot_fix_timeout = (bytes[13] << 8) | bytes[12]; data.gps_min_fix_time = bytes[14]; data.gps_min_ehpe = bytes[15]; data.gps_hot_fix_retry = bytes[16]; data.gps_cold_fix_retry = bytes[17]; data.gps_fail_retry = bytes[18]; data.gps_settings = {};//bytes[19]; data.gps_settings.d3_fix = ((bytes[19] >> 0) & 0x01) ? 1 : 0; data.gps_settings.fail_backoff = ((bytes[19] >> 1) & 0x01) ? 1 : 0; data.gps_settings.hot_fix = ((bytes[19] >> 2) & 0x01) ? 1 : 0; data.gps_settings.fully_resolved = ((bytes[19] >> 3) & 0x01) ? 1 : 0; data.system_voltage_interval = bytes[20]; data.gps_charge_min = bytes[21]*10+2500; data.system_charge_min = bytes[22]*10+2500; data.system_charge_max = bytes[23]*10+2500; data.system_input_charge_min = (bytes[25] << 8) | bytes[24]; data.pulse_threshold = bytes[26]; data.pulse_on_timeout = bytes[27]; data.pulse_min_interval = (bytes[29] << 8) | bytes[28]; data.gps_accel_z_threshold = ((bytes[31] << 8) | bytes[30])-2000; data.fw_version = (bytes[33] << 8) | bytes[32]; } else if (port === 12) { data.resetCause = resetCause_dict[bytes[0]&0x07]; data.system_state_timeout = bytes[0]>>3; data.battery = bytes[1]*10+2500; // result in mV data.temperature = get_num(bytes[2], -20, 80, 8, 1); data.system_functions_errors = {};//bytes[5]; data.system_functions_errors.gps_periodic_error = ((bytes[3] >> 0) & 0x01) ? 1 : 0; data.system_functions_errors.gps_triggered_error = ((bytes[3] >> 1) & 0x01) ? 1 : 0; data.system_functions_errors.gps_fix_error = ((bytes[3] >> 2) & 0x01) ? 1 : 0; data.system_functions_errors.accelerometer_error = ((bytes[3] >> 3) & 0x01) ? 1 : 0; data.system_functions_errors.light_error = ((bytes[3] >> 4) & 0x01) ? 1 : 0; data.system_functions_errors.charging_status = (bytes[3] >> 5) & 0x07; data.lat = ((bytes[4] << 16) >>> 0) + ((bytes[5] << 8) >>> 0) + bytes[6]; data.lon = ((bytes[7] << 16) >>> 0) + ((bytes[8] << 8) >>> 0) + bytes[9]; if(data.lat!==0 && data.lon!==0){ data.lat = (data.lat / 16777215.0 * 180) - 90; data.lon = (data.lon / 16777215.0 * 360) - 180; data.lat = Math.round(data.lat*100000)/100000; data.lon = Math.round(data.lon*100000)/100000; } data.gps_resend = bytes[10]; data.accelx = get_num(bytes[11], -2000, 2000, 8, 1); data.accely = get_num(bytes[12], -2000, 2000, 8, 1); data.accelz = get_num(bytes[13], -2000, 2000, 8, 1); data.battery_low = (bytes[15] << 8) | bytes[14];; // result in mV data.gps_on_time_total = (bytes[17] << 8) | bytes[16]; data.gps_time = bytes[18] | (bytes[19] << 8) | (bytes[20] << 16) | (bytes[21] << 24); var d= new Date(data.gps_time*1000); data.gps_time_data = d.toLocaleString(); data.pulse_counter = bytes[22]; data.pulse_energy = (bytes[23]<<4) | (bytes[24] | (bytes[25] << 8)>>12); data.pulse_voltage = (bytes[24] | (bytes[25] << 8)) & 0x0fff; data.voltage_fence_v = data.pulse_voltage * 8; data.downlink_counter = (bytes[26] | (bytes[27] << 8)); } else if (port === 1) { data.lat = ((bytes[cnt++] << 16) >>> 0) + ((bytes[cnt++] << 8) >>> 0) + bytes[cnt++]; data.lon = ((bytes[cnt++] << 16) >>> 0) + ((bytes[cnt++] << 8) >>> 0) + bytes[cnt++]; if(data.lat!==0 && data.lon!==0){ data.lat = (data.lat / 16777215.0 * 180) - 90; data.lon = (data.lon / 16777215.0 * 360) - 180; data.lat = Math.round(data.lat*100000)/100000; data.lon = Math.round(data.lon*100000)/100000; } data.alt = bytes[cnt++] | (bytes[cnt++] << 8); data.satellites = (bytes[cnt] >> 4); data.hdop = (bytes[cnt++] & 0x0f); data.time_to_fix = bytes[cnt++]; data.epe = bytes[cnt++]; data.snr = bytes[cnt++]; data.lux = bytes[cnt++]; data.motion = bytes[cnt++]; data.gps_time = bytes[cnt++] | (bytes[cnt++] << 8) | (bytes[cnt++] << 16) | (bytes[cnt++] << 24); var d= new Date(data.gps_time*1000); data.gps_time_data = d.toLocaleString(); } else if (port === 11) { var locations=[]; for(i = 0; i < 20; i++){ var location={} location.lat = ((bytes[cnt++] << 16) >>> 0) + ((bytes[cnt++] << 8) >>> 0) + bytes[cnt++]; location.lon = ((bytes[cnt++] << 16) >>> 0) + ((bytes[cnt++] << 8) >>> 0) + bytes[cnt++]; location.gps_time = ((bytes[cnt++] << 16) >>> 0) + ((bytes[cnt++] << 8) >>> 0) + bytes[cnt++]; location.gps_time = location.gps_time * 60 + 1600000000; var d= new Date(location.gps_time*1000); location.gps_time_data = d.toLocaleString(); var fix_stats= bytes[cnt++]; location.motion = fix_stats>>7; location.epe = ((fix_stats>>4)&0x07)*12; location.ttf = (fix_stats&0x0f)*5; if(location.lat!==0 && location.lon!==0){ location.lat = (location.lat / 16777215.0 * 180) - 90; location.lon = (location.lon / 16777215.0 * 360) - 180; location.lat = Math.round(location.lat*100000)/100000; location.lon = Math.round(location.lon*100000)/100000; // push only valid locations locations.push(location); } } data.locations=JSON.stringify(locations); } else if (port === 30) { var vswr=[]; for(i = 0; i < bytes.length; i++){ var value=(bytes[i]); vswr.push(value); } data.vswr=vswr; } return data; }