Seeeduino LoRaWAN
SKU 102010128
LoRaWAN Class A/C
Ultra long range communication
Ultra low power consumption
Arduino programming (based on Arduino Zero bootloader)
Embeded with lithim battery management chip
4 Grove connectors onboard
Description
Seeeduino LoRaWAN is an Arduino development board with LoRaWan protocol embeded,
through which you can get started quickly to experience LoRa's advantage in the field of IoT.
Based on communication module RHF76-052AM, Seeeduino LoRaWAN is compatible with
LoRaWAN Class A/C and supports a variety of communication frequencies. The 4 onboard
standard grove connectors allow Seeeduino LoRaWan to connect with hundreds of grove sensors
and actuators for Seeeduino conveniently, as a result, users are able to be more focus on the
application itself without worrying about the compatibility issue between different modules.
In addition, the board has embeded an integrated lithium battery management chip that allows
the board to be charged by USB interface. In low consumption mold, a full charged lithium
battery can power the board for several months. By using Seeeduino LoRaWAN. You can build
an IoT application very quickly.
We also offer another version with GPS module embeded, click here to find the Seeeduino
LoRaWAN W/GPS.
Features
LoRaWAN Class A/C
Ultra long range communication
Ultra low power consumption
Arduino programming (based on Arduino Zero bootloader)
Embeded with lithim battery management chip
4 Grove connectors onboard
Seeeduino LoRaWAN
Introduction
Seeeduino LoRaWAN is an Arduino development board with LoRaWan protocol embedded,
through which you can get started quickly to experience LoRa’s advantage in the field of IoT.
Based on the communication module RHF76-052AM, Seeeduino LoRaWAN is compatible with
LoRaWAN Class A/C and supports a variety of communication frequencies.
The 4 onboard standard Grove connectors allow Seeeduino LoRaWan to connect with hundreds
of Grove sensors and actuators from Seeedstudio conveniently, as a result, users are able to be
more focus on the application itself without worrying about the compatibility issue between
different modules. In addition, the board has embedded an integrated lithium battery
management chip that allows the board to be charged by USB interface. In low consumption
mode, a full charged lithium battery can power the board for several months.
If you want to build an IoT application quickly, Seeeduino LoRaWAN is your best choice.
Product Version
Released Date
Seeeduino LoRaWAN
Dec 20, 2016
Seeeduino LoRaWAN W/GPS
Dec 20, 2016
Tip
Seeeduino LoRaWAN W/GPS is consist of GPS module.
Features
Minimum current (3.7V lipo battery) - 2mA
Minimum current (3.7V lipo battery & remove PWR LED) - 650 uA
Arduino/Processor
ATSAMD21G18 @ 48MHz with 3.3V logic/power
Arduino compatible (based on Arduino Zero bootloader)
Embedded with lithium battery management chip and status indicator led
20 GPIOs
4 on-board Grove connectors
18 x PWM pins
6 x analog inputs
1 x analog output (A0)
3.3V regulator with 200mA output
Reset button
LoRaWAN/RHF76‐052
o
o
1.45uA sleep current in WOR mode (Spec of the modules, not the board)
High link budget of 160dB. -140dBm sensitivity and 19dBm Output power.
Dual band, 434/470MHz and 868/915MHz
19dBm@434MHz/470MHz
14dBm@868MHz/915MHz
Support LoRaWAN protocol, Class A/C
Ultra long range communication
Ultra low power consumption
Firmware upgrade
Small size: 23mm X 28mm with 33 pin SMT package
Warning
Unlike most Arduino & Genuino boards, the Zero runs at 3.3V. The maximum voltage that the
I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage
the board.
Specification
Item
Value
Microcontroller
ATSAMD21G18, 32-Bit ARM Cortex M0+
Operating Voltage
3.3V
Digital I/O Pins
20
PWM Pins
All but pins 2 and 7
UART
2 (Native and Programming)
Analog Input Pins
6, 12-bit ADC channels
Analog Output Pins
1, 10-bit DAC
External Interrupts
All pins except pin 4
Item
Value
DC Current per I/O Pin
7 mA
Flash Memory
256 KB
SRAM
32 KB
EEPROM
None
Clock Speed
48 MHz
Lenght
68 mm
Width
53 mm
Weight
19.6g(without GPS), 19.9(with GPS)
Application Ideas
Internet of Things
Smart House
Security
Smart Grid
Intelligent Farm
Intelligent Park
Tip
Use Grove modules to expand your application
There are 4 Grove connects on board. If this is your first time to hear about Grove, please put
had on Grove System for more details. In brief, Groves is hundreds of sensor that in standard
style, which is consist of sensors, actuators, displays as well as communication.
Hardware Overview
o
o
o
1. Micro USB - Programming and supply power to the board
2. Grove connectors
3. JST2.0 Lipo battery input (3.7V) and charge status led
4. DFU Button - Firmware mode button
5. Reset Button
6. Arduino Pinout
7. ICSP pins
8. Firmware mode led
9. Wire antenna
A. uFL antenna
B. RF module - RHF76-052AM
C. ARM Cortex M0 processor - ATSAMD21G18
D. LEDs
RX/TX - blink when data on UART(from/to USB)
L - an led connect to D13
PWR – power
Pin Map
Pin
Name
GPIO
Num
External
Interrupt
PWM
Analog
In
Analog
Out
0
#0
YES
YES
RX(Serial1)
1
#1
YES
YES
TX(Serial1)
2
#2
YES
3
#3
YES
4
#4
5
#5
YES
YES
6
#6
YES
YES
7
#7
YES
8
#8
YES
YES
9
#9
YES
YES
10
#10
YES
YES
11
#11
YES
YES
SPI_MOSI
12
#12
YES
YES
SPI_MISO
13
#13
YES
YES
SPI_SCK
SDA
#20
YES
YES
SCL
#21
YES
YES
A0
#A0
YES
YES
YES
A1
#A1
YES
YES
YES
A2
#A2
YES
YES
YES
A3
#A3
YES
YES
YES
A4
#A4
YES
YES
YES
Function
YES
YES
YES
Voltage of
Pin
Name
GPIO
Num
External
Interrupt
PWM
Analog
In
Analog
Out
Function
Battery
A5
#A5
YES
YES
YES
Charge
Status
Note
All pins can act as Digital Input and Output
Getting Started ‐ Arduino IDE
Note
This chapter is based on Win10 and Arduino IDE v1.6.0
First you need to install the latest Arduino IDE, and ADD Seeeduino LoRa to your Arduino IDE.
Install the Driver (For Windows)
When the first time to insert the board, you should get a USB COM device name Seeeduino
LoRaWAN that need to install a driver. Click on the below button to download driver for the
board.
To make sure the driver was installed successful, open your Device Manager to see if Seeeduino
LoRaWAN exists.
Blink
Now we can upload our first demo - Blink to Seeeduino LoRaWAN.
Open your Arduino IDE and click on File > Examples > 01.Basics > Blink to open the sketch or
copy the blow code:
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
And Then,
Click on Tools > Board > Seeeduino LoRaWAN
Click on Tools > Port to select a right port number. (Don’t choose COM1)
Then click on the Upload button on the left-top of Arduino IDE, seconds later the sketch was
uploaded successful.
If the uploading is success, you should the some info in red and please the on-board LED, it’s
blinking.
Battery
You can power the board via a 3.7V Lipo battery. There’s a JST2.0 cable included, use it if you
can’t get a battery with JST2.0 connector.
Warning
Make sure the positive and negative end of your battery is connected right, otherwise the board
may be damaged.
Charge status pin and positive pin of the battery had beed connect to A4 and A5, which allow
you to detect the charge status and measure voltage of the battery via coding.
Copy and upload the below code to detect the battery status.
// battey of Seeeduino LoRaWAN
const int pin_battery_status = A5;
const int pin_battery_voltage = A4;
void setup() {
SerialUSB.begin(115200);
pinMode(pin_battery_status, INPUT);
}
void loop() {
int a = analogRead(pin_battery_voltage);
float v = a/1023.0*3.3*11.0; // there's an 1M and 100k resistor divider
SerialUSB.print(v, 2);
SerialUSB.print('\t');
SerialUSB.println(digitalRead(pin_battery_status));
delay(1000);
}
Note
Charge status return 0 while charging, return 1 while charge done or no battery insert.
Send and Receive Example
There is a well written library for the LoRaWAN modules, for simple applications you even
don’t need to know much about the protocol about LoRa, which is complex and hard to read.
And please note that you till need some acknowledge about LoRa protocol if you want an
advanced application. You don’t need to download the library, it’s included in the package
already. You can open it at File > Examples > LoRaWAN.
You need 2 piece of Seeeduino LoRaWAN to complete this example, one for sending and
another for receiving.
Sending
Open your Arduino IDE and click on File > Examples > LoRaWAN > p2p_tx to open the
sketch or you can copy the code below. This sketch will broadcast a string “Hello World!” every
3000 ms.
// Seduino LoRaWAN ‐ TX example
#include
void setup(void)
{
SerialUSB.begin(115200);
lora.init();
lora.initP2PMode(433, SF12, BW125, 8, 8, 20);
}
void loop(void)
{
lora.transferPacketP2PMode("Hello World!");
SerialUSB.println("Send string.");
delay(3000);
}
Receiving
Open your Arduino IDe and click on File > Examples > LoRaWAN > p2p_rx to open the
sketch or you can copy the code below.
// Seduino LoRaWAN ‐ RX example
#include
unsigned char buffer[128] = {0, };
void setup(void)
{
SerialUSB.begin(115200);
lora.init();
lora.initP2PMode(433, SF12, BW125, 8, 8, 20);
}
void loop(void)
{
short length = 0;
short rssi = 0;
memset(buffer, 0, 128);
length = lora.receivePacketP2PMode(buffer, 128, &rssi, 1);
if(length)
{
SerialUSB.print("Length is: ");
SerialUSB.println(length);
SerialUSB.print("RSSI is: ");
SerialUSB.println(rssi);
SerialUSB.print("Data is: ");
for(unsigned char i = 0; i Examples > LoRaWan get more
details. Those examples include:
ABP
OTAA
p2p-rx
p2p-tx
GPS Data
Note
This chapter works with Seeeduino LoRaWAN W/GPS only.
Copy below code you Seeeduino LoRaWAN W/GPS.
void setup()
{
Serial.begin(9600);
SerialUSB.begin(115200);
}
void loop()
{
while(Serial.available())
{
SerialUSB.write(Serial.read());
}
while(SerialUSB.available())
{
Serial.write(SerialUSB.read());
}
}
Open Serial Monitor then you will get data from GPS.
Update firmware
The firmware version of is 2.0.10, if you want to update firmware, few steps need to follow.
If you want to check version of you board, please upload below code to your board.
void setup()
{
Serial1.begin(9600);
SerialUSB.begin(115200);
}
void loop()
{
while(Serial1.available())
{
SerialUSB.write(Serial1.read());
}
while(SerialUSB.available())
{
Serial1.write(SerialUSB.read());
}
}
Open your Serial Monitor and INPUT
AT+VER
Then you will get the version of your board.
Step1
Copy and upload below code to your board.
// Update firmware to RHF76‐052AM
#include
void setup()
{
SerialDBG.begin(115200);
SerialUSB.begin(115200);
}
void loop()
{
while(SerialDBG.available())
{
SerialUSB.write(SerialDBG.read());
}
while(SerialUSB.available())
{
SerialDBG.write(SerialUSB.read());
}
}
Input AT+VER to get the version of your board. If it’s not the most recent version, please
following below steps to upgrade it.
Step2
Remove the board form USB and reconnect again, then press the DFU Button, after the
Firmware mode led blinking you can go to the next step.
Step3
Click to download the latest firmware, which is a .bin file.
Step4
Open PuTTy and connect to the board
Tip
You can find the latest PuTTy here: http://www.extraputty.com/download.php
Step5
After connect your board to PuTTy successful, you will find the char ‘C’ print on the monitor
continually. Click on Files Transfer > Ymodem > Send, and select the .bin file we had
downloaded at Step4.
Then the updating is started.
Resources
Schematics in Eagle
Sketchup file(3D)
CE certification of RHF 76-052
RHF76-052 Firmware V2.0.10
Datasheet of RHF76-052AM
Help us make it better
Thank you for choosing Seeed. A couple of months ago we initiated a project to improve our
documentation system. What you are looking at now is the first edition of the new
documentation system. Comparing to the old one, here is the progresses that we made:
Replaced the old documentation system with a new one that was developed from Mkdocs, a more widely
used and cooler tool to develop documentation system.
Integrated the documentation system with our official website, now you can go to Bazaar and other
section like Forum and Community more conveniently.
Reviewed and rewrote documents for hundreds of products for the system’s first edition, and will
continue migrate documents from old wiki to the new one.
An easy-to-use instruction is as important as the product itself. We are expecting this new system
will improve your experience when using Seeed’s products. However since this is the first
edition, there are still many things need to improve, if you have any suggestions or findings, you
are most welcome to submit the amended version as our contributor or give us suggestions in the
survey below, Please don’t forget to leave your email address so that we can reply.
Happy hacking
Copyright © 2008-2016 Seeed Development Limited All rights reserved
工商网监
湘ICP备2023018690号
