Data Sheet

RM1xx LoRa/BLE Modules
Datasheet
https://connectivity.lairdtech.com/wireless-
modules/lorawan-solutions
6
© Copyright 2019 Laird. All Rights Reserved
Americas: [phone]
Europe: [phone]
Hong Kong: [phone]
2 SPECIFICATIONS
Table 1: Specifications
Categories Feature Implementation
LoRa Wireless
Specification
LoRa®
LoRaWAN 1.01 (End Device)
Frequency
902-928MHz
RM191
865-870 MHz
RM186
Maximum Transmit Power
Setting
15.5 dBm
RM191
13.5 dBm RM186
Minimum Transmit Power
Setting
1.5 dBm
Receive Sensitivity
-126 dBm
-134 dBm
RM191 (BW 500 kHz SF 12)
RM186 (BW 125kHz SF 12)
Range
Up to 15 km in free space
Raw Data Rates
(over the air)
250 bps – 50 kbps
RM186
980 bps – 21.9kbps
RM191
BLE Wireless
Specification
Bluetooth® (BLE)
V4.1 – Central OR Peripheral Mode
Frequency
2.402 - 2.480 GHz
Maximum Transmit Power
Setting
3 dBm (into -1.5 dBi chip antenna)
Minimum Transmit Power
Setting
-20 dBm (in four dB steps) with smartBASIC command
-16 dBm
-12 dBm
-8 dBm
-4 dBm
0 dBm
TX Whisper Mode 1
Transmit Power
-30 dBm (min.) with smartBASIC command
TX Whisper Mode 2 Transmit
Power
-55 dBm (min.) with smartBASIC command
Receive Sensitivity
(0.1% BER)
-91 dBm typical
Link Budget
95 dB (@ 1 Mbps)
Range
Up to 100 m in free space
TX Whisper Modes
Range reduction feature with TX Whisper modes with
smartBASIC command.
Range
(TX Whisper Mode 2)
<~30 cm
Raw Data Rates
1 Mbps (over the air)
Host Interface and
Peripherals
Total 14 x Multifunction I/O lines
UART TX, RX, CTS, RTS
DCD, RI, DTR, DSR, CTS, RTS (Note 1)
Default 115200, n, 8, 1
From 1,200 to 460800 bps
GPIO Up to 14
With configurable I/O direction, O/P drive strength