EWBM ELR100-UL-EB Manuale utente

eLR100-UL-EB

Manual

eLR100-UL-EB

Contetns 
eLR100-UL-EB Manual for Consumer Products, Rev. 0.1, 03/2019 2 | 17 
 
CONTETNS 
Contetns.............................................................................................................................................................................................. 2 
Introduction............................................................................................................................................................................ 3 
1. Features.............................................................................................................................................................................. 3 
2. Block Diagram .................................................................................................................................................................... 4 
System Description................................................................................................................................................................. 5 
1. Part Description.................................................................................................................................................................. 5 
2. Power ................................................................................................................................................................................. 6 
3. Reset................................................................................................................................................................................... 7 
4. Boot.................................................................................................................................................................................... 8 
5. UART................................................................................................................................................................................... 9 
6. Optional Part .................................................................................................................................................................... 11 
Application Note................................................................................................................................................................... 14 
1. Firmware Update ............................................................................................................................................................. 14 
Document Revision and Reference .............................................................................................................................................. 16 
 
 
 

Introduction

eLR100-UL-EB Manual for Consumer Products, Rev. 0.1, 03/2019 3 | 17

1. INTRODUCTION

eLR100-UL-EB is Internet of Things (IoT) Products Development Kit well suited for the developers supporting LoRa Network.

eLR100-UL-00 or eLR100-US-00 LoRa Module designed by eWBM is embedded on this Kit.

1.1. FEATURES

⚫eLR100-US/HF Module include

-eWBM ultra low power advanced security MCU MS500

✓Cortex M0

✓Hardware Security system.

-Semtech SX1272 radio transceiver supporting LoRa.

-UART Communication Interface

✓AT-Command set support for LoRaWAN

⚫SMA connector

Block Diagram

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1.2. BLOCK DIAGRAM

Figure 1 Hardware Block Diagram

System Description

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2. SYSTEM DESCRIPTION

2.1. PART DESCRIPTION

Figure 2 eLR100-UL-EB Parts

Figure 3 eLR100-EB Header J3,4 pinout diagram

System Description

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2.2. POWER

Figure 4 Input Power, Power LED

2.2.1. Input Power

There are three options for supplying the 5V DC to the board as following:

1. Battery (BT1)

2. DC Jack (J1)

3. USB Connector (J2)

Table 1. Input Power

Input

Battery

DC Jack

USB Connector

Reference

BT1

Connector

AAA 3EA Holder

DC 5V 2.0 pi

Micro USB B Type

2.2.2. Power LED (LED1)

Once the external 5V DC power supplied to the board is regulated down to 3.3V Power LED (LED2) turns

on.

System Description

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2.3.RESET

Figure 5 Reset Header, Switch

2.3.1. Reset Switch (SW2), Reset Header (J4.9)

⚫The voltage level of RESET is 1.8V.

⚫There is a 1.8V pull up circuitry inside the module.

⚫When a host board is controlled by the reset switch, the default attribute is set as INPUT. For

resetting the device, the LOW value should be maintained for 1ms and then configure it as

INPUT.

Example Code

pinMode(8 ,INPUT);

pinMode(8 ,OUTPUT);

digitalWrite(8, LOW);

delay(1);

pinMode(8 ,INPUT);

2.3.2. Software Reset (AT Command)

The device can be reset by using the AT+Command ‘AT+RESET’. Please refer to the AT+Command

manual for more details.

System Description

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2.4. BOOT

2.4.1. Boot Mode / eFuse

Boot Mode and eFuse setting can be done through Boot Mode/eFuse Setting Switch (SW4). Refer to

Table 2 for BOOT mode setting.

Figure 6 Boot Mode Setting

Table 2. Boot Mode Table

BOOT MODE

BOOT[2]

BOOT[1]

BOOT[0]

eFUSE

ROM BOOT

(Default)

OFF

UART-Flash Update

(Firmware Update)

OFF

eFUSE Data Mode

OFF

2.4.2. STATE LED (LED 2)

When the LoRa Module is successfully booted, the LED2 turns on.

System Description

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2.5. UART

Figure 7 Arduino Type Header Description

2.5.1. UART 2

The UART2 port of eLR100-US/UL-00 module can be accessed via USB Connector(J2), through which

firmware upates or AT+command control is supported.

AT Command Setting

⚫Boot Mode Setting

-ROM Boot Mode (BOOT [2:0] = 3'b000)

⚫Serial Port Setup

Port Setup Information

Baud Rate

115200

Data

8 bit

Parity

None

Stop

1 bit

Flow Control

None

System Description

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Firmware Update Mode Setting

⚫Boot Mode Setting

-UART-Flash Update Mode (BOOT [2:0] = 3'b010)

⚫Serial Port Setup

-Refer to Firmware Updater Setting

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