Dragino DDS75-NB NB-IoT Distance Detection Sensor

Émbaran produk

spésifikasi

• Ciri umum DC: NB-IoT Spec
• NB-IoT Module: BC660K-GL
• Band pangrojong:
  • B1 @H-FDD: 2100MHz
  • B2 @H-FDD: 1900MHz
  • B3 @H-FDD: 1800MHz
  • B4 @H-FDD: 2100MHz
  • B5 @H-FDD: 860MHz
  • B8 @H-FDD: 900MHz
  • B12 @H-FDD: 720MHz
  • B13 @H-FDD: 740MHz
  • B17 @H-FDD: 730MHz
  • B18 @H-FDD: 870MHz
  • B19 @H-FDD: 870MHz
  • B20 @H-FDD: 790MHz
  • B25 @H-FDD: 1900MHz
  • B28 @H-FDD: 750MHz
  • B66 @H-FDD: 2000MHz
  • B70 @H-FDD: 2000MHz
  • B85 @H-FDD: 700MHz
• Batré: Li/SOCI2 unchargeable battery
  • Kapasitas: 8500 mah
  • Ngaluarkeun diri:

Parentah Pamakéan Produk

Setting up the DDS75-NB NB-IoT Distance Detection Sensor

To set up the sensor, follow these steps:

1. Insert the SIM card (if not built-in).
2. Power on the sensor by pressing the power button.
3. Connect to the desired IoT platform using one of the supported uplink methods (MQTT, MQTTs, UDP, TCP).

Ukur Jarak
The sensor will detect the distance between the measured object and itself automatically once set up.

Manajemén batré
The sensor is powered by an 8500mAh Li-SOCI2 battery designed for long-term use. To maximize battery life:

• Hindarkeun ngecas batréna.
• Ngeusi batre sapinuhna sateuacan dianggo mimiti.
• Replace the battery when needed with a compatible battery type.

Pembaruan firmware
The sensor supports BLE configure and OTA update for easy firmware updates. Follow these steps to update the firmware:

1. Ensure the sensor is connected to a stable network.
2. Initiate the firmware update process through the IoT platform or BLE connection.
3. Monitor the update progress and ensure it completes successfully.

Bubuka

What is DDS75-NB NB-IoT Distance Detection Sensor
The Dragino DDS75-NB is a NB-IoT Distance Detection Sensor for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data. The DDS75-NB can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control,sewer, bottom water level monitoring, etc.

It detects the distance between the measured object and the sensor, and and send IoT platform via NB-IoT network.

• DDS75-NB supports different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.
• DDS75-NB supports BLE configure and OTA update which make user easy to use.
• DDS75-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to several years.
• DDS75-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

Fitur

• NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
• Konsumsi kakuatan ultra-low
• Deteksi Jarak ku téhnologi Ultrasonic
• Obyék datar rentang 280mm - 7500mm
• Akurasi: ± (1cm + S * 0.3%) (S: Jarak)
• Measure Angle: 40°
• kalikeun Sampling jeung hiji uplink
• Support Bluetooth v5.1 remote configure and update firmware
• Uplink on périodik
• Downlink pikeun ngarobah ngonpigurasikeun
• IP66 Waterproof Enclosure
• Batré 8500mAh kanggo panggunaan jangka panjang
• Slot kartu SIM Nano pikeun SIM NB-IoT

Spésifikasi

Ciri umum DC:

• Pasokan Voltage: 2.5v ~ 3.6v
• Suhu Operasi: -40 ~ 85°C

Spésifikasi NB-IoT:
NB-IoT Module: BC660K-GL

Band pangrojong:

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz
• B85 @H-FDD: 700MHz

Batré:

• Li/SOCI2 batré un-chargeable
• Kamampuh: 8500mAh
• Self Discharge: <1% / Taun @ 25°C
• Max kontinyu ayeuna: 130mA
• Max dorongan ayeuna: 2A, 1 detik

Konsumsi Daya

• STOP Mode: 10uA @ 3.3v
• kakuatan ngirimkeun Max: 350mA@3.3v

kaayaan lingkungan dipeunteun

Barang	nilai minimum	has nilai	nilai maksimum	Unit	Katerangan
Suhu neundeun	-25	25	80	℃
Kelembaban gudang		65%	90%	RH	(1)
Suhu operasi	-15	25	60	℃
Kalembaban gawé		65%	80%	RH	(1)

Remarks: (1)

• Lamun hawa ambient nyaeta 0-39 ℃, kalembaban maksimum nyaéta 90% (non-condensing);
• Lamun hawa ambient nyaeta 40-50 ℃, kalembaban pangluhurna nyaéta kalembaban pangluhurna di alam dunya dina suhu ayeuna (euweuh kondensasi)

Rentang pangukuran éféktif Pola balok rujukan

1. Obyék anu diuji nyaéta tabung silinder bodas anu didamel tina PVC, jangkungna 100cm sareng diaméterna 7.5cm.
2. Obyék anu diuji nyaéta "kotak karton bergelombang" jejeg sumbu sentral 0 °, sareng panjang * lebar 60cm * 50cm.

Aplikasi

• Pengukuran jarak horizontal
• Pangukuran tingkat cair
• Sistim manajemén parkir
• Deukeutna objék sareng deteksi ayana
• Sistem manajemén tong sampah calakan
• Ngahindarkeun halangan robot
• Kontrol otomatis
• solokan
• Ngawas tingkat cai handap

Mode sare sareng modeu damel

Mode Saré Jero: Sensor doesn’t have any NB-IoT activate. This mode is used for storage and shipping to save battery life

Modeu Gawé: In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT network and send out sensor data to server. Between each sampling/tx/rx périodik, sénsor bakal aya dina modeu IDLE), dina modeu IDLE, sénsor gaduh konsumsi kakuatan anu sami sareng modeu Saré Jero.

Tombol & LEDs

Behavior on ACT	Fungsi	Aksi
	Send an uplink	If sensor has already attached to NB-IoT network, sensor will send an uplink packet, biru dipimpin bakal kedip-kedip sakali. Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	Alat aktip	Héjo dipingpin bakal gancang ngacieupan 5 kali, alat bakal asup Modeu OTA for 3 seconds. And then start to attach NB-IoT network. Once sensor is active, BLE module will be ac- tive and user can connect via BLE to configure device, no matter if device attach NB-IoT net- work or not.

Deactivate Device

Beureum ditungtun will solid on for 5 seconds. Means de- vice is in Deep Sleep Mode.

Catetan: Nalika alat keur ngajalankeun program, tombol bisa jadi teu valid. Hadé pisan mun éta mencet tombol sanggeus alat geus réngsé palaksanaan program.

sambungan BLE
DDS75-NB support BLE remote configure and firmware update.

BLE tiasa dianggo pikeun ngonpigurasikeun parameter sénsor atanapi ningali kaluaran konsol tina sénsor. BLE ngan bakal diaktipkeun dina kasus di handap ieu:

• Pencét tombol pikeun ngirim uplink
• Pencét tombol pikeun alat aktip.
• Alat Hurungkeun atanapi reset.

Upami teu aya sambungan kagiatan dina BLE dina 60 detik, sensor bakal mareuman modul BLE pikeun asup kana modeu kakuatan rendah.

Pin Definition , Switch & SIM Direction

Jumper JP2
Daya dina Alat nalika nempatkeun jumper ieu.

MODE BOOT / SW1

1. ISP: Modeu pamutahiran, alat moal gaduh sinyal dina modeu ieu. tapi siap pikeun ningkatkeun firmware. LED moal jalan. Firmware moal jalan.
2. Flash: modeu gawe, alat mimiti dianggo tur ngirim kaluar kaluaran konsol pikeun debug salajengna

Tombol Reset
Pencét pikeun reboot alat.

Arah Kartu SIM
See this link. How to insert SIM Card .

Mékanis

Mékanis Probe:

Use DDS75-NB to communicate with IoT Server

Kirim data ka server IoT via jaringan NB-IoT
The DDS75-NB is equipped with a NB-IoT module, the pre-loaded firmware in DDS75-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module. The NB-IoT network will forward this value to IoT server via the protocol defined by DDS75-NB.

Di handap ieu nunjukkeun struktur jaringan:
There are two version: -GE and -1T version of DDS75-NB.

Vérsi GE: This version doesn’t include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set DDS75-NB send data to IoT server.
Install NB-IoT SIM card and configure APN. See instruction of Attach Network .

Set up sensor to point to IoT Server. See instruction of Configure to Connect Different Servers . Below shows result of different server as a glance.

1T Version: This version has 1NCE SIM card pre-installed and configure to send value to ThingsEye. User Just need to select the sensor type in ThingsEyeand Activate DDS75-NB and user will be able to see data in ThingsEye. See here for ThingsEye Config Instruction .

Jinis Payload
To meet different server requirement, DDS75-NB supports different payload type.

Ngawengku:

• Payload format JSON umum. (Tipe=5)
• Payload format HEX. (Tipe=0)
• Format ThingSpeak. (Tipe=1)
• Format ThingsBoard. (Tipe=3)

Pamaké bisa nangtukeun jenis payload lamun milih protokol sambungan. Misalample:

• AT+PRO=1,0 // Use COAP Connection & hex Payload
• AT+PRO=1,5 // Use COAP Connection & Json Payload
• AT + PRO = 2,0 // Paké UDP Connection & hex Payload
• AT + PRO = 2,5 // Paké UDP Connection & Json Payload
• AT + PRO = 3,0 // Paké MQTT Connection & hex Payload
• AT + PRO = 3,5 // Paké MQTT Connection & Json Payload
• AT + PRO = 4,0 // Paké TCP Connection & hex Payload
• AT + PRO = 4,5 // Paké TCP Connection & Json Payload

General Json Format(Type=5)

This is the General Json Format. As below:

{“IMEI”:”863663062798914″,”IMSI”:”460083513507314″,”Model”:”DDS75-NB”,”distance”:1752,”interrupt”:0,”interrupt_level”:0,”battery”:3.29,”signal”:17,”time”:”2024/11/21 08:31:30″,”1″:[2109,”2024/11/21 08:04:46″],”2″:[1015,”2024/11/21 07:49:45″],”3″:[1118,”2024/11/21 07:34:46″],”4″:[0,”2024/11/21 05:26:12″],”5″:[0,”2024/11/21 05:11:12″],”6″:[0,”2024/11/21 04:56:12″],”7″: [0,”2024/11/21 04:41:12″],”8″:[0,”2024/11/21 04:26:12″]}

Bewara, ti payload luhur:
Distance , Battery, Signal & time are the value at uplink time.
Éntri Json 1 ~ 8 nyaéta 1 ~ 8 s anu terakhirampling data as specify by AT+CLOCKLOG=1,65535,15,8 Command. Each entry includes (from left to right): Temperature,Humidity, Sampwaktos ling.

Payload format HEX (Tipe=0)

This is the HEX Format. As below: f863663062798914f46008351350731409820ce81101000008d1673ef0a1083d673ee99e03f7673ee619045e673e

Lamun kami nganggo klien MQTT pikeun ngalanggan topik MQTT ieu, urang tiasa ningali informasi di handap nalika data uplink sensor NB.

Device ID(f+IMEI): f863663062798914 = 863663062798914
SIM Card ID(f+IMSI): f460083513507314 = 460083513507314

Vérsi:
Bait ieu kalebet versi hardware sareng software.
Higher byte: Specify Sensor Model: 0x09 for DDS75-NB
Lower byte: Specify the software version: 0x82=130, means firmware version 1.3.0

BAT (Info Batré):
Ex1: 0x0D38 = 3384mV

Kakuatan sinyal:
NB-IoT Network Kakuatan sinyal.

Ex1: 0x13 = 19

• 0 -113dBm or less 1 -111dBm
• 2…30 -109dBm… -53dBm
• 31 -51dBm atanapi langkung ageung
• 99 Henteu dipikanyaho atanapi henteu tiasa dideteksi

ngaganggu:
If this packet is generated by interrupt or not.

Example:

• 0x00: pakét uplink normal.
• 0x01: Ngaganggu Pakét Uplink.

Interrupt_level:
This byte shows whether the interrupt is triggered by a high or low level.

• Ex1: 0x00 Interrupt triggered by falling edge (low level)
• Ex2: 0x01 Interrupt triggered by rising edge (high level)

Jarak:
Meunang jarak. Obyék datar rentang 280mm - 7500mm.
Pikeun exampLe, upami data anu anjeun kéngingkeun tina register nyaéta 0x0B 0x05, jarak antara sensor sareng obyék anu diukur nyaéta
0B05(H) = 2821 (D) = 2821 mm.
Upami nilai sénsor 0x0000, éta hartosna sistem henteu ngadeteksi sénsor ultrasonik.

Waktosamp:
Unit Timestamp Example: 6653ddb4(H) = 1716772276(D)
Lebetkeun nilai decimal kana tautan ieu (https://www.epochconverter.com) ) to get the time.

ThingsBoard Payload (Tipe=3)
Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
{
“topic”: “2276492”,
"payload": {
"IMEI": "863663062798914",
“Model”: “DDS75-NB”,
“distance”: 347,
“interrupt”: 0,
“interrupt_level”: 0,
"batré": 3.38,
“signal”: 15,
“1”: [347, “2024/05/27 01:26:21”],
“2”: [250, “2024/05/27 00:57:17”],
“3”: [250, “2024/05/27 00:42:17”],
“4”: [250, “2024/05/27 00:27:17”],
“5”: [250, “2024/05/27 00:12:17”],
“6”: [250, “2024/05/26 23:57:17”],
“7”: [250, “2024/05/26 23:42:17”],
“8”: [250, “2024/05/26 23:27:16”] }
}

ThingSpeak Payload(Tipe=1)

This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~3 are:
Distance, Battery & Signal. This payload type only valid for ThingsSpeak Platform.

Saperti di handap:
field1=Distance value&field2=Battery value&field3=Signal value

Test Uplink jeung Robah Update Interval

By default, Sensor will send uplinks every 2 hours
User can use below commands to change the uplink interval.

AT command: AT+TDC

• Example: AT+TDC=7200 // Set Update Interval to 7200 seconds
• Downlink command: 0x01
• Format: Kode Komando (0x01) dituturkeun ku 3 bait.
• Example: 12 hours= 43200 seconds 43200(D)=0xA8C0(H)
• Downlink Payload: 01 00 A8 C0 // AT+TDC=43200, Set Update Interval to 12 hours.

Catetan: Pamaké ogé tiasa nyorong tombol langkung ti 1 detik pikeun ngaktipkeun uplink.

Multi-Samplings jeung Hiji uplink

bewara: The AT+NOUD feature is upgraded to Clock Logging, please refer Clock Logging Feature
To save battery life, DDS75-NB will sample distance data every 15 minutes and send one uplink every 2 hours.

So each uplink it will include 8 stored data + 1 real-time data. They are defined by:

• AT+TR=900 // Unit nyaéta detik, sareng standarna nyaéta ngarékam data sakali unggal 900 detik (15 menit, minimum tiasa disetel ka 180 detik)
• AT + NOUD = 8 // Alat ngamuat 8 sét data anu dirékam sacara standar. Nepi ka 32 sét data rékaman tiasa diunggah.

Diagram di handap ngajelaskeun hubungan antara TR, NOUD, sareng TDC langkung jelas:

Trggier hiji uplink ku interupsi éksternal
DDS75-NB has an external trigger interrupt function. Users can use the GPIO_EXTI pin to trigger the upload of data packets.

paréntah AT:

• AT + INTMOD // Nyetél modeu ngaganggu pemicu
• AT+INTMOD=0 // Disable Interrupt
• AT + INTMOD = 1 // Pemicu ku naék sareng ragrag
• AT + INTMOD = 2 // Pemicu ku ragrag ujung
• AT + INTMOD = 3 // Pemicu ku rising tepi

Alarm Jarak

Fitur: Set alarm of LDDS and NMDS.
AT command: AT+LDDSALARM (Range:280mm – 7500mm)

Example: AT+LDDSALARM=500,2000 // Set the alarm threshold
Downlink command: 0X08
Format: Kode Komando (0x08) dituturkeun ku 4 bait.
Example: Downlink Payload: 08 01 F4 07 D0 //AT+LDDSALARM=500,2000

logging jam (Saprak firmware versi v1.2.1)
Kadang-kadang nalika urang nyebarkeun seueur titik tungtung di lapangan. Simkuring hoyong sadayana sensor sample data at the same time, and upload these data together for analyze. In such case, we can use clock loging feature.
We can use this command to set the start time of data recording and the time interval to meet the requirements of the specific collection time of data.

AT command: AT+CLOCKLOG=a,b,c,d

• a: 0: Nonaktipkeun logging Jam. 1: Aktipkeun Logging Jam
• b: Sebutkeun Kahiji sampling mimiti kadua: rentang (0 ~ 3599, 65535) // Catetan: Lamun parameter b disetel ka 65535, periode log dimimitian sanggeus titik aksés ka jaringan sarta ngirimkeun pakét.
• c: Sebutkeun sampInterval ling: rentang (0 ~ 255 menit)
• d: Sabaraha éntri kudu uplink dina unggal TDC (max 32)

Catetan: To disable clock recording, set the following parameters: AT+CLOCKLOG=1,65535,0,0

Example: AT +CLOCKLOG=1,0,15,8
Device will log data to memory start from the 0* second (11:00 00″ of first hour and then sampling and log every 15 minutes.Every TDC uplink, the uplink payload will consist: Battery info + last 8 memory record with timestamp + panganyarna sample dina waktos uplink). Tempo handap pikeun example.

AT+CLOCKLOG=1,65535,1,5
Saatos node ngirim pakét munggaran, data dirékam kana mémori dina interval 1 menit. Pikeun unggal uplink TDC, beban uplink bakal ngawengku: informasi batré + 5 rékaman memori panungtungan (payload + timest).amp).

Catetan: Users need to synchronize the server time before configuring this command. If the server time is not synchronized before this command is configured, the command takes effect only after the node is reset.

• Downlink command: 0x0A

Format: Kode Komando (0x0A) dituturkeun ku 5 bait.

• Example 1: Downlink Payload: 0A01FFFF0F08
  // Set SHT record time: AT+CLOCKLOG=1,65535,15,8
• Example 1: Downlink Payload: 0A0104B00F08
  // Set SHT record time:
  AT+CLOCKLOG=1,1200,15,8

Catetan: When entering the downlink payload, there must be no Spaces between bytes.

Example Query disimpen catetan sajarah

• paréntah AT: AT+CDP

Paréntah ieu tiasa dianggo pikeun milarian sajarah anu disimpen, ngarékam dugi ka 32 grup data, unggal grup data sajarah ngandung maksimal 100 bait.

Patarosan log uplink

• paréntah AT: AT+GETLOG

Paréntah ieu tiasa dianggo pikeun naroskeun log hulu pakét data.

Resolusi ngaran domain dijadwalkeun
This command is used to set up scheduled domain name resolution.

paréntah AT:

• AT+DNSTIMER=XX // Unit: jam

Saatos netepkeun paréntah ieu, résolusi ngaran domain bakal dilaksanakeun sacara rutin.

Set the QoS level
This command is used to set the QoS level of MQTT.

paréntah AT:

• AT+MQOS=xx // 0~2

Downlink command: 0x07

• formatna: Command Code (0x07) followed by 1 byte.
• Ex1: Downlink payload: 0x0700 //AT+MQOS=0
• Ex2: Downlink payload: 0x0701 //AT+MQOS=1

Set CoAP option
This command sets the connection parameters of the COAP.

paréntah AT:

• AT+URI1 // CoAP option name, CoAP option length, “CoAP option value”
• AT+URI2 // CoAP option name, CoAP option length, “CoAP option value”
• AT+URI3 // CoAP option name, CoAP option length, “CoAP option value”
• AT+URI4 // CoAP option name, CoAP option length, “CoAP option value”

Example:

• AT+URI1=11,38,”i/faaa241f-af4a-b780-4468-c671bb574858″

Set the downlink debugging mode(Since firmware v1.3.0)
Fitur: Set the conversion between the standard version and 1T version downlinks.

paréntah AT: AT+DOWNTE

Paréntah Example	Function/Parameters	Response/Explanation
AT+DOWNTE=?	Get current Settings	0,0 (default) OK
AT+DOWNTE=a,b	a: Set the conversion between the downlink of the standard version and 1T version	0: Set the downlink of the standard version. 1: Set the downlink of the 1T version(ThingsEye platform)
	b: Enable/Disable downlink debugging	0: Disable downlink debugging mode. 1: Enable downlink debugging mode, users can see the original downlink reception.

Example:
AT+DOWNTE=0,1 // Set to standard version downlink, and enable downlink debugging.
AT+DOWNTE=1,1 // Set to 1T version downlink, and enable downlink debugging.

Paréntah Downlink:
No downlink commands for feature

Domain name resolution settings(Since firmware v1.3.0)

Fitur: Set dynamic domain name resolution IP.

paréntah AT: AT+BKDNS

Paréntah Example	Function/Parameters	Response/Explanation
AT+BKDNS=?	Get current Settings	0,0,NULL (default) OK
AT+BKDNS=a,b,c	a: Enable/Disable dynamic do- main name resolution.	1: Disable dynamic domain name update. The ip address will be saved after the domain name is resolved, if the next domain name resolution fails, the last saved ip address will be used. 2: Enable dynamic domain name update. The ip address will be saved after domain name resolution, if the next domain name resolution fails, the last saved ip address will be used, and the domain name resolution will be up- dated regularly according to the time set by the customer.
	b: Set the time to update the domain name resolution at reg- ular intervals.	Unit: hour
	c: Set the IP address manually.	The format is the same as AT+SERVADDR. If domain name resolution fails, this ip address will be used directly, if domain name resolution succeeds, parameter c will be updated to the successfully resolved IP address.

Example:

• AT+BKDNS=1,0 // Dynamic domain name resolution is disabled.
• AT+BKDNS=2,1 // The dynamic domain name resolution function is enabled and the automatic update time is set to 1 hour.
• AT+BKDNS=2,4,3.69.98.183,1883 // The dynamic domain name resolution function is enabled and the automatic update time is set to 4 hour, and manually set the ip address, if the domain name failed to resolve, it will directly use this ip to communicate.

When the next domain name resolution is successful, it will be updated to the ip address of the successful resolution.

Paréntah Downlink:
No downlink commands for feature

Configure DDS75-NB

Ngonpigurasikeun Métode
DDS75-NB supports below configure method:

AT Command via Bluetooth Connection (Recommended): BLE Configure Instruction .
AT Command via UART Connection : See UART Connection .

Serial Access Password
After the Bluetooth or UART connection is successful, use the Serial Access Password to enter the AT command window.

The label on the box of the node will print the initial password: AT+PIN=xxxxxx, and directly use the six-digit password to access the AT instruction window.

If you need to change the password, use AT+PWORD=xxxxxx (6 characters), NB nodes only support lowercase letters.

Catetan: After entering the command, you need to add a line break, and you can also set automatic line breaks in the Bluetooth tool or UART connection tool.

AT Paréntah Siapkeun

• AT+ ? : Pitulung
• AT+ : Lumpat
• AT+ = : Nyetél nilai
• AT+ =? : Kéngingkeun nilai

Paréntah umum

• AT: Attention
• AT? : Pitulung pondok
• ATZ: MCU Reset
• AT+TDC: Application Data Transmission Interval
• AT+CFG: Print all configurations
• AT+CFGMOD: Working mode selection
• AT+DEUI: Get or set the Device ID
• AT+INTMOD: Set the trigger interrupt mode
• AT+5VT: Set extend the time of 5V power
• AT+PRO: Choose agreement
• AT+RXDL: Extend the sending and receiving time
• AT+DNSCFG: Get or Set DNS Server
• AT+GETSENSORVALUE: Ngabalikeun pangukuran sensor ayeuna
• AT+NOUD: Get or Set the number of data to be uploaded
• AT+CDP: Read or Clear cached data
• AT+SERVADDR: Server Address

Manajemén MQTT

• AT+CLIENT: Get or Set MQTT client
• AT+UNAME: Get or Set MQTT Username
• AT+PWD: Get or Set MQTT password
• AT+PUBTOPIC: Get or Set MQTT publish topic
• AT+SUBTOPIC: Get or Set MQTT subscription topic

Émbaran

• AT+FDR: Factory Data Reset
• AT+PWORD: Serial Access Password
• AT+LDATA: Get the last upload data
• AT+CDP: Read or Clear cached data

Batré & Konsumsi Daya

DDS75-NB use ER26500 + SPC1520 battery pack. See link below for detail information about the battery info and how to replace.
Inpo Batré & Analisis Konsumsi Daya .

Pembaruan firmware

User can change device firmware to:

• Update kalawan fitur anyar.
• Ngalereskeun bug.

Firmware and changelog can be downloaded from : Firmware download link

Métode pikeun Ngamutahirkeun Firmware:

• (Recommended way) OTA firmware update via BLE: Instruction .
• Update through UART TTL interface: Instruction .

Pamérésan masalah

Naha bacaan sensor nunjukkeun 0 atanapi "No sensor"

1. Obyék pangukuran caket pisan sareng sénsor, tapi dina titik buta sénsor.
2. Wiring sénsor dipegatkeun
3. Teu ngagunakeun decoder bener

Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large.

1. Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
2. Does it change with temperature, temperature will affect its measurement
3. If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.downlink command: F1 01, AT command: AT+DDEBUG=1
4. Saatos ngasupkeun mode debug, éta bakal ngirim 20 lembar data dina hiji waktu, sarta anjeun bisa ngirim uplink na ka kami pikeun analisis

Payload aslina bakal leuwih panjang batan data lianna. Sanajan ieu keur parsed, éta bisa ditempo yén éta téh data abnormal.
Mangga ngirim data ka kami pikeun dipariksa.

Inpo Pesenan

Part Number: DDS75-NB-XX

XX:

• GE: Vérsi umum (Ngaluarkeun kartu SIM)
• 1T: with 1NCE * 10 years 500MB SIM card and Pre-configure to ThingsEye server

Inpormasi bungkusan

Pakét Ngawengku:

• DDS75-NB NB-IoT Distance Detection sensor x 1
• Anteneu éksternal x 1
• Dimensi jeung beurat:
• Ukuran Alat: 13.0 x 5 x 4.5 cm
• Beurat alat: 150g
• Package Size / pcs: 14.0 x 8x 5 cm
• Weight / pcs: 180g

Ngarojong

• Rojongan disayogikeun Senén dugi ka Jumaah, ti 09:00 ka 18:00 GMT + 8. Kusabab zona waktos anu béda kami henteu tiasa nawiskeun dukungan langsung. Nanging, patarosan anjeun bakal dijawab pas mungkin dina jadwal anu disebatkeun sateuacana.
• Nyadiakeun saloba inpormasi anu mungkin ngeunaan patarosan anjeun (model produk, ngajelaskeun masalah anjeun sareng léngkah-léngkah pikeun ngayakeun réplikasi, jsb) sareng kirimkeun surat ka Support@dragino.cc .

FAQ

Sabaraha lami batréna tiasa dicas pinuh?

The 8500mAh Li-SOCI2 battery can last several years on a full charge under normal usage conditions.

Can I change the default IoT server connection settings?

Yes, you can configure the IoT server connection settings to connect to a different server if needed. Refer to the user manual for detailed instructions on changing server settings.

Kumaha carana abdi tiasa aksés t BC660K-GL AT Paréntah?

Pamaké tiasa ngaksés ka BC660K-GL langsung sareng ngirim Paréntah AT. Tempo BC660K-GL AT Komando susunan

Can I use DDS75-NB in condensation environment?

DDS75-NB is not suitable to be used in condensation environment. Condensation on the DDS75-NB probe will affect the reading and always got 0.

How to configure the certificate?

User can can refer to this description to configure the certificate.

Dokumén / Sumberdaya

Dragino DDS75-NB NB-IoT Distance Detection Sensor [pdf] Manual pamaké DDS75-NB NB-IoT Distance Detection Sensor, DDS75-NB, NB-IoT Distance Detection Sensor, Distance Detection Sensor, Detection Sensor

Rujukan

• Manual pamaké