Reply To: Node-red

@Leon I know the link, but there isn’t any full example for it, such as assigning data type and stuff.

var data_type = {
	none : 0x00,
	led1 : 0x01,
	led2 : 0x02,
	lux_max : 0x03,
	lux_min : 0x04,
	lux_curr : 0x05,
	baro_max : 0x06,
	baro_min : 0x07,
	baro_curr : 0x08,
	temp_max : 0x09,
	temp__min : 0x0A,
	temp_curr : 0x0B,
	accel_max : 0x0C,
	accel_min : 0x0D,
	accel_curr : 0x0E,
	configuration : 0x0F,
	gpio_in : 0x10,
	gpio_out : 0x11,
	current_max : 0x12,
	current_min : 0x13,
	current_curr : 0x14,
	gps_latitude : 0x15,
	gps_longitude : 0x16,
	gps_time : 0x17,
	gps_date : 0x18,
	gps_lock : 0x19,
	qos_up : 0x1A,
	qos_dwn : 0x1B,
	rf_out : 0x1C,
	data_mark : 0x1D,
};

var data_struc = {
	data_valid : 0,
	block_start :0,
	temperature : 0,
	x_pos : 0,
	y_pos : 0,
	z_pos : 0,
	baro_pressure : 0,
	lux : 0,
	pkt_timer :0,
	rf_pwr : 0,
	sf_val : 0,
	rssi_up : 0,
	snr_up : 0,
	rssi_dwn : 0,
	snr_dwn :0 ,
	lat_deg : 0 ,
	lat_min : 0,
	long_deg : 0,
	long_min : 0,
	num_sats : 0 ,
	gps_status : 0,
};

context.global.data_out = context.global.data_out || data_struc;
var pData = context.global.data_out;

var msg_pntr = 0;
var temp = 0;

while (msg_pntr < msg.payload.length){
	switch (msg.payload[msg_pntr]){
	case data_type.lux_max:
	case data_type.lux_min:
	case data_type.lux_curr:
		pData.lux = msg.payload[++msg_pntr] << 8;
		pData.lux |= msg.payload[++msg_pntr];
		pData.lux = pData.lux * 0.24;
		msg_pntr++;
		break;
	case data_type.baro_max:
	case data_type.baro_min:
	case data_type.baro_curr:
		pData.baro_pressure = msg.payload[++msg_pntr]<<16;
		pData.baro_pressure |= msg.payload[++msg_pntr]<<8;
		pData.baro_pressure |= msg.payload[++msg_pntr];
		pData.baro_pressure = pData.baro_pressure * 0.25;
		msg_pntr++;
		break;
	case data_type.accel_max:
	case data_type.accel_min:
	case data_type.accel_curr:
		pData.x_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		pData.y_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		pData.z_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		msg_pntr++;
		break;
	case data_type.temp_min:
	case data_type.temp_max:
	case data_type.temp_curr:
		pData.temperature = msg.payload[++msg_pntr] << 24;
		pData.temperature |= msg.payload[++msg_pntr] << 16;
		pData.temperature = (pData.temperature >> 16) * 0.0625;
		msg_pntr++;
		break;
	case data_type.configuration:
		pData.pkt_timer = msg.payload[++msg_pntr];
		msg_pntr++;
		break;
	case data_type.current_max:
	case data_type.current_min:
	case data_type.current_curr:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_latitude:
		pData.lat_deg = (msg.payload[++msg_pntr] << 24) >> 24;
		pData.lat_min = msg.payload[++msg_pntr];
		temp = msg.payload[++msg_pntr] << 8 ;
		temp |= msg.payload[++msg_pntr];
		pData.lat_min = pData.lat_min + (temp * 0.0001);
		msg_pntr++;
		break;
	case data_type.gps_longitude:
		pData.long_deg = (msg.payload[++msg_pntr] << 24);
		pData.long_deg |= (msg.payload[++msg_pntr] << 16);
		pData.long_deg = pData.long_deg >> 16;
		pData.long_min = msg.payload[++msg_pntr];
		temp = msg.payload[++msg_pntr] << 8;
		temp |= msg.payload[++msg_pntr];
		pData.long_min = pData.long_min + (temp * 0.0001);
		msg_pntr++;
		break;
	case data_type.gps_time:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_date:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_lock:
		msg_pntr++;
		pData.gps_status = msg.payload[msg_pntr] & 0x0F;
		pData.num_sats = msg.payload[msg_pntr++] >> 4;
		break;
	case data_type.qos_up:
		pData.rssi_up = msg.payload[++msg_pntr] << 24;
		pData.rssi_up |= msg.payload[++msg_pntr] << 16;
		pData.rssi_up = pData.rssi_up >> 16;
		pData.snr_up = (msg.payload[++msg_pntr] << 24) >> 24;
		pData.rf_pwr = (msg.payload[++msg_pntr] << 24) >> 24;
		msg_pntr++;
		break;
	case data_type.qos_dwn:
		pData.rssi_dwn = msg.payload[++msg_pntr] << 24;
		pData.rssi_dwn |= msg.payload[++msg_pntr] << 16;
		pData.rssi_dwn = pData.rssi_dwn >> 16;
		pData.snr_dwn = ((msg.payload[++msg_pntr] << 24) >> 24) / 4;
		msg_pntr++;
		break;
	case data_type.rf_out:
		pData.rf_pwr = (msg.payload[++msg_pntr] << 24) >> 24;
		msg_pntr++;
		break;
	case data_type.data_mark:
		if (msg_pntr == '0') {
			pData = data_struc;
			pData.block_start = 1;
			msg_pntr++;
		}
		else if (msg_pntr == (msg.payload.length - 1) && (pData.block_start === 1)) {
				pData.data_valid = 1;
				msg_pntr++;
			}
			else {
				pData = data_struc;
				msg_pntr = msg.payload.length;
				}
		break;
	default:
		pData = data_struc;
		msg_pntr = msg.payload.length;
	}
}

pData.sf_val = parseInt(msg.datr.replace("SF","  "),10);

context.global.data_out = pData;

return pData;

@steve Thanks man. It has created above code, but still I am not able to see data on Node-RED at debug window.

When I deploy I am getting following error, what that means and how can I correct it ?

” mqtt-broker: staging.thethingsnetwork.org:1883 ”

Thanks guys
Akshay