Dragino SDI-12-LB Manual de usuario

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SDI-12-LB -- SDI-12 to LoRaWAN Converter User Manual

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SDI-12-LB -- SDI-12 to LoRaWAN

Converter User Manual

Last modiﬁed by

Xiaoling

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on 2023/02/24 09:16

Table of Contents

：

•

1. Introduction

◦

1.1 What is SDI-12 to LoRaWAN Converter

◦

1.2 Features

◦

1.3 Speciﬁcation

◦

1.4 Connect to SDI-12 Sensor

◦

1.5 Sleep mode and working mode

◦

1.6 Button & LEDs

◦

1.7 Pin Mapping

◦

1.8 BLE connection

◦

1.9 Mechanical

•

2. Conﬁgure SDI-12 to connect to LoRaWAN network

◦

2.1 How it works

◦

2.2 Quick guide to connect to LoRaWAN server (OTAA)

◦

2.3 SDI-12 Related Commands

▪

2.3.1 Basic SDI-12 debug command

▪

al!!-- Get SDI-12 sensor Identiﬁcation

▪

aM!,aMC!, aM1!- aM9!, aMC1!- aMC9!

▪

aC!, aCC!,!aC1!- aC9!,!aCC1!- aCC9!!

▪

aR0!- aR9!,!aRC0!- aRC9!

▪

2.3.2!Advance SDI-12 Debug command

▪

2.3.3 Convert ASCII to String

▪

2.3.4 Deﬁne periodically SDI-12 commands and uplink.

◦

2.4!Uplink Payload

▪

2.4.1 Device Payload, FPORT=5

▪

2.4.2 Uplink Payload, FPORT=2

▪

2.4.3 Battery Info

▪

2.4.4 Interrupt Pin

▪

2.4.5 Payload version

▪

2.4.6 Decode payload in The Things Network

◦

2.5 Uplink Interval

◦

2.6 Examples To Set SDI commands.

▪

2.6.1 Examples 1

◦

2.7 Frequency Plans

◦

2.8 Firmware Change Log

•

3. Conﬁgure SDI-12-LB via AT Command or LoRaWAN Downlink

◦

3.1!Set Transmit Interval Time

◦

3.2 Set Interrupt Mode

◦

3.3 Set the output time

◦

3.4 Set the all data mode

◦

3.5 Set the splicing payload for uplink

◦

3.6 Set the payload version

•

4. Battery & how to replace

◦

4.1 Battery Type

◦

4.2 Replace Battery

◦

4.3 Power Consumption Analyze

▪

4.3.1 Battery Note

▪

4.3.2 Replace the battery

•

5. Remote Conﬁgure device

◦

5.1 Connect via BLE

◦

5.2 AT Command Set

•

6. OTA ﬁrmware update

•

7. FAQ

◦

7.1 How to use AT Command to access device?

◦

7.2 How to update ﬁrmware via UART port?

◦

7.3 How to change the LoRa Frequency Bands/Region?

•

8. Order Info

•

9. Packing Info

•

10. Support

1. Introduction

1.1 What is SDI-12 to LoRaWAN Converter

The Dragino

SDI-12-LB

is a

SDI-12 to LoRaWAN Converter!

designed for Smart Agriculture solution.

SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous

serial communications

(

https://en.wikipedia.org/wiki/Serial_communication

)

protocol for intelligent sensors that monitor

environment data. SDI-12 protocol is widely used in Agriculture sensor and Weather Station sensors.

SDI-12-LB has SDI-12 interface and support 12v output to power external SDI-12 sensor. It can get the

environment data from SDI-12 sensor and sends out the data via LoRaWAN wireless protocol.

The LoRa wireless technology used in SDI-12-LB allows device to send data and reach extremely long

ranges at low data-rates. It provides ultra-long range spread spectrum communication and high

interference immunity whilst minimizing current consumption.

SDI-12-LB is powered by

8500mAh Li-SOCI2 battery

, it is designed for long term use up to 5 years.

Each SDI-12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to

local LoRaWAN server and it will auto connect after power on.

1.2 Features

•

LoRaWAN 1.0.3 Class A

•

Ultra-low power consumption

•

Controllable 3.3v, 5v and 12v output to power external sensor

•

SDI-12 Protocol to connect to SDI-12 Sensor

•

Monitor Battery Level

•

Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

•

Support Bluetooth v5.1 and LoRaWAN remote conﬁgure.

•

Support wireless OTA update ﬁrmware

•

Uplink on periodically

•

Downlink to change conﬁgure

•

8500mAh Battery for long term use

1.3 Speciﬁcation

Micro Controller:

•

MCU: 48Mhz ARM

•

Flash: 256KB

•

RAM: 64KB

Common DC Characteristics:

•

Supply Voltage: 2.5v ~ 3.6v

•

Operating Temperature: -40 ~ 85°C

LoRa Spec:

•

Frequency Range,!Band 1 (HF): 862 ~ 1020 Mhz

•

Max +22 dBm constant RF output vs.

•

RX sensitivity: down to -139 dBm.

•

Excellent blocking immunity

Current Input Measuring :

•

Range: 0 ~ 20mA

•

Accuracy: 0.02mA

•

Resolution: 0.001mA

Voltage Input Measuring:

•

Range: 0 ~ 30v

•

Accuracy: 0.02v

•

Resolution: 0.001v

Battery:

•

Li/SOCI2 un-chargeable battery

•

Capacity: 8500mAh

•

Self-Discharge: <1% / Year @ 25°C

•

Max continuously current: 130mA

•

Max boost current: 2A, 1 second

Power Consumption

•

Sleep Mode: 5uA @ 3.3v

•

LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

1.4 Connect to SDI-12 Sensor

1.5 Sleep mode and working mode

Deep Sleep Mode:!

Sensor doesn't have any LoRaWAN activate. This mode is used for storage and

shipping to save battery life.

Working Mode:!

In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send

out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE

mode, sensor has the same power consumption as Deep Sleep mode.

1.6 Button & LEDs

Behavior on ACT

Function

Action

Pressing ACT between

1s < time < 3s

Send an uplink

If sensor is already Joined to

LoRaWAN network, sensor will

send an uplink packet,

blue

led

will blink once.

Meanwhile, BLE module will be

active and user can connect via

BLE to conﬁgure device.

Pressing ACT for more

than 3s

Active Device

Green led

will fast blink 5 times,

device will enter

OTA mode

for 3

seconds. And then start to JOIN

LoRaWAN network.

Green led

will solidly turn on for 5

seconds after joined in network.

Once sensor is active, BLE

module will be active and user can

connect via BLE to conﬁgure

device, no matter if device join or

not join LoRaWAN network.

Fast press ACT 5 times.

Deactivate

Device

Red led

will solid on for 5

seconds. Means SDI-12-LB is in

Deep Sleep Mode.

1.7 Pin Mapping

1.8 BLE connection

SDI-12-LB support BLE remote conﬁgure.

BLE can be used to conﬁgure the parameter of sensor or see the console output from sensor. BLE will be

only activate on below case:

•

Press button to send an uplink

•

Press button to active device.

•

Device Power on or reset.

If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low

power mode.

1.9 Mechanical

2. Conﬁgure SDI-12 to connect to LoRaWAN

network

2.1 How it works

The SDI-12-LB is conﬁgured as

LoRaWAN OTAA Class A

mode by default. It has OTAA keys to join

LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the

LoRaWAN IoT server and activate the SDI-12-LB. It will automatically join the network via OTAA and start

to send the sensor value. The default uplink interval is 20 minutes.

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