Data Sheet
Table Of Contents
- 1 Overview and Key Features
- 1.2 Application Areas
- Features and Benefits
- 2 Specifications
- 3 Hardware Specifications
- 3.1 Block Diagram and Pin-out
- 3.2 Pin Definitions
- 3.3 Electrical Specifications
- 4 Functional Description
- 4.1 Power Management (includes brown-out and power on reset)
- 4.2 Clocks and Timers
- 4.3 RF
- 4.4 UART Interface
- 4.5 SPI Bus
- 4.6 I2C Interface
- 4.7 General Purpose I/O, ADC and PWM/FREQ
- 4.8 nRESET Pin
- 4.9 nAutoRUN Pin
- 4.10 RM1xx VSP Service and Modes
- 4.11 Two-Wire SWD Programming/Debug Interface
- 4.12 RM1xx on-board chip antenna characteristics
- 5 Hardware Integration Suggestions
- 6 Mechanical Details
- 7 Application Note for Surface Mount Modules
- 8 FCC and IC Regulatory Statements
- 9 CE Regulatory
- 10 EU Declarations of Conformity
- 11 Ordering Information
- 12 Bluetooth SIG Qualification
RM1xx LoRa/BLE Modules
Datasheet
https://connectivity.lairdtech.com/wireless-
modules/lorawan-solutions
29
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5.3 LoRa External Antenna Integration with RM1xx
Please refer to the regulatory sections for FCC/IC, and CE, for details of use of RM1xx with external antennas.
The RM1xx has been designed to operate with the below external antennas (with a maximum gain of 2dBi). The required
antenna impedance is 50 ohms. See Table 22.
Table 22: LoRa External antennas for the RM1xx
External Antenna Part
Number
Laird Part
Number
Mfg. Type Gain
(dBi)
Connector
Type
RM1xx Part
number
RFDPA131015IMBB301 0600-00060 Walsin Dipole 0.9 U.FL RM191/RM186
WPANTDP036-R5A - World
Products
Dipole 2.0 U.FL RM191/RM186
S152CL-L-PX-915S - Nearson Dipole 2.0 U.FL RM191
S152CL-L-PX-868S - Nearson Dipole 2.0 U.FL RM186
6 MECHANICAL DETAILS
6.1 RM1xx Mechanical Details
Figure 10: RM1xx Mechanical drawings
Development Kit Schematics can be found in the Documentation tab of the RM1xx product page:
https://connectivity.lairdtech.com/wireless-modules/lorawan-solutions/sentrius-rm1xx-lora-ble-modules