Related Manuals for DirekTronik LDDS20
Summary of Contents for DirekTronik LDDS20
- Page 1 LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual last modified by Xiaoling on 2022/10/27 17:54...
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Page 2: Table Of Contents
1.6 Applications ................................... 9 1.7 Precautions ................................... 9 1.8 Pin mapping and power on ............................9 2. Configure LDDS20 to connect to LoRaWAN network ....................10 2.1 How it works ................................10 2.2 Quick guide to connect to LoRaWAN server (OTAA) ................... 10 2.3 ... - Page 3 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Table of Contents: • 1. Introduction • 1.1 What is LoRaWAN Ultrasonic liquid level Sensor • 1.2 Features • 1.3 Suitable Container & Liquid •...
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Page 4: Introduction
LoRaWAN network to IoT Server The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn't none-contact measurement makes the measurement need to open a hole on the container to be tested. The safety, easier and possible for some strict situation. ... -
Page 5: Features
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual 1.2 Features • LoRaWAN 1.0.3 Class A • Ultra low power consumption • Liquid Level Measurement by Ultrasonic technology • Measure through container, No need to contact Liquid. -
Page 6: Install Ldds20
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual 1.5 Install LDDS20 Step 1: Choose the installation point. MUST LDDS20 be installed on the container bottom middle position. Step 2: Polish the installation point. - Page 7 Step3: Test the installation point. Power on LDDS20, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
- Page 8 BLUE LED slowly blinking: Sensor detects Liquid Level, The installation point is good. LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that. Note 2: Ultrasonic coupling paste ...
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Page 9: Applications
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Note 1: Eproxy AB glue needs 3~ 5 minutes to stable attached. we can use other glue material to keep it in the position. -
Page 10: Configure Ldds20 To Connect To Lorawan Network
To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value. - Page 11 Step 1: Create a device in TTN with the OTAA keys from LDDS20. Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below. For OTAA registration, we need to set APP EUI/ APP KEY/ DEV EUI. Some server might no need to set APP EUI.
- Page 12 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Page 12 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 13 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Page 13 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 14 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual You can also choose to create the device manually. Add APP KEY and DEV EUI Page 14 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 15 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Step 2: Power on LDDS20 Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position). Page 15 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 16 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Step 3: The LDDS20 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel. ...
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Page 17: Uplink Payload
LoRaWAN Ultrasonic Liquid Level Sensor User Manual 2.3 Uplink Payload LDDS20 will uplink payload via LoRaWAN with below payload format: Uplink payload includes in total 8 bytes. Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload). -
Page 18: Sensor Flag
The payload decoder function for TTN V3 is here: LDDS20 TTN V3 Payload Decoder: https://github.com/dragino/dragino-end-node-decoder 2.4 Downlink Payload By default, LDDS20 prints the downlink payload to console port. Examples: Page 18 / 30 - last modified by Xiaoling on 2022/10/27 17:54... -
Page 19: Show Data In Datacake Iot Server
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Set TDC • If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01. Payload: 01 00 00 1E TDC=30S Payload: ... - Page 20 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Step 3: Create an account or log in Datacake. Step 4: Search the LDDS75 and add DevEUI.(Note: LDDS20 use same payload as LDDS75) Page 20 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 21 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake. Page 21 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
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Page 22: Led Indicator
LoRaWAN Ultrasonic Liquid Level Sensor User Manual 2.6 LED Indicator The LDDS20 has an internal LED which is to show the status of different state. • Blink once when device power on. • The device detects the sensor and flashes 5 times. -
Page 23: Battery Analysis
2.8.1 Battery Type The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non- rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter. -
Page 24: Battery Life Analyze
3.1 Access AT Commands LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below. Or if you have below board, use below connection:... - Page 25 9600 In the PC, you need to set the serial baud rate to to access the serial console for LDDS20. LDDS20 will output system info once power on as below: Page 25 / 30 - last modified by Xiaoling on 2022/10/27 17:54...
- Page 26 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Below are the available commands, a more detailed AT Command manual can be found at AT Command Manual. AT+<CMD>? : Help on <CMD>...
- Page 27 User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual AT+TDC : Application Data Transmission Interval Keys, IDs and EUIs management : AT+APPEUI : Application EUI AT+APPKEY : Application Key AT+APPSKEY : Application Session Key ...
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Page 28: Set Interrupt Mode
4. FAQ 4.1 What is the frequency plan for LDDS20? LDDS20 use the same frequency as other Dragino products. User can see the detail from this link: Introduction Page 28 / 30 - last modified by Xiaoling on 2022/10/27 17:54... -
Page 29: How To Change The Lora Frequency Bands/Region
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual 4.2 How to change the LoRa Frequency Bands/Region You can follow the instructions for how to upgrade image. When downloading the images, choose the required image file for download. -
Page 30: Support
User Manual for LoRaWAN End Nodes - LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual Dimension and weight: • Device Size: cm • Device Weight: g • Package Size / pcs : cm • Weight / pcs : g ...
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