HM-TRLR-S Series 100mW LoRa Transceiver

Introduction

HM-TRLR-S series is a low cost, high performance transparent transceiver operating at 433/915MHz. It is LoRa/FSK/GFSK/OOK modulation variety. It features small size, high output power, high sensitivity, long transmission distance and most of the parameters can be set via the command. Receive and send data to automatically switch. Use generic UART interface. It is easy to realize the wireless data transmission if provided with the UART data. It is flexible for the users to set the parameters of UART baud rate, output power, data rate, frequency select, modulation mode select etc. It is your ideal choice for designing wireless data transmission products which can be widely used on wireless data transmission field.

Features

• Low cost, high performance, high reliability
• LoRa/FSK/GFSK/OOK modulation, 2-way half –duplex communication, strong anti-interfere
• 433/915MHz ISM band, globally license free.
• Maximal output power100mW(20dBm)， output power adjustable between 2-20dBm
• LORA Sensitivity -139dBm
• Supply current for Tx 130mA@20dBm, 35mA@13dBm
• Supply current for Rx 16mA
• Low current sleep mode 2uA
• Standard UART interface, extendable to RS232 or other interface
• Operation frequency can be configured, acceptable for several modules working in different frequency with no disturbance on each other.
• RF parameters as needed, users can be modulated by software.
• Easily use, auto exchange on communication & transceiver
• Communication speed 1.2kbps -115.2kbps，can be modulated through software
• Afford Sleep control signal，user self control work duty cycle
• With LED indicator
• Longer transmission distance，over 5Km in open air
• Small size 16*20*2mm，10PIN SMD package，easy for assembly .
• Tuning free
• Accord FCC, ETSI standard

Applications

• Remote control, remote measurement
• Data collection
• Wireless meter
• Access control
• IT household appliance
• Intelligence household appliance
• Identification system

Pin Description

VCC—— Power supply,2.4-3.6V DC power, recommendation 3.3V DC power

TXD—— Data transmission

GND—— Ground

RXD—— Data receiving

CONFIG——Set low for configuration mode, while set high for communication

SLEEP——Set low for normal mode for data transceiver , while back to sleep if set high

STATUS——Disconnected

RESET——Reset trigger input, Active low

ANT—— Input/output interface with 50 ohm antenna

GND—— Ground

Maximum Specification

Parameters

Typical Application

HM-TRLR-S TTL UART

As in the above Figure, connect the TXD pin of HM-TRLR-S with UART RXD Pin of MCU, connect the RXD pin of HM- TRLR-S with the UART TXD pin of MCU. Then the CONFIG/SLEEP/RESET/STATUS of HM-TRLR-S connects with GPIO of MCU.

HM-TRLR-S extends to RS232

You can extend the HM-TRLR-S to RS232 by adding the MAX3232, and then you can directly connect the COM to the PC.

Mechanical Dimension

unit：mm