HM-TR v2.2
continued
Sleep current
HM-TR433/TTL
HM-TR868/TTL
HM-TR915/TTL
1
1
1
uA
Reference distance
HM-TR433/TTL
HM-TR868/TTL
HM-TR915/TTL
15
67
300
5
None
1
330
220
230
240
400
19200
9
Even
2
m
Modulate deviation
Receiver bandwidth
UART data rate
UART data bits
UART parity check
UART stop bits
ANT connector
Module size
9600
8
Odd
1
kHz
kHz
bps
bit
bit
SMA female
24×43mm
Quick Setup
Connect HM-TR/232 to the RS232 connector of serial fitted PC or connect HM-TR/TTL to
MCU(micro controller unit)’s UART directly，apply power supply, both RED and GREEN status
LED will blink 3 times to indicate it is ready for your application. If CONFIG pin is low at power
on, module will enters normal mode for data transmission, or CONFIG is high the module enters
configure mode to setup work parameters
Note: MCU=Micro Controller Unit, PC=Personal Computer, GPIO=General Purpose Input/Output
Normal mode connection
In normal mode, the ENABLE pin controls the module work or sleep, module will enter
sleep mode as soon as the pin is low level.
Tel: +86-755-82973806 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
update: 6/16/2008
HOPERF [ Hope Microelectronics co., Ltd ]
