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
7
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Categories Feature Implementation
(standard 0.5 mA or high 5 mA), pull-up/pull-down
ADC Four 10-bit channels (including ADC reference)
10 bit resolution
1.2 V internal reference
1/1, 2/3, 1/3 pre-scaling
PWM or FREQ output PWM or FREQ output on up to two GPIO output pins:
PWM output duty cycle 0%-100%
PWM output frequency Up to 500 kHz (Note 7)
FREQ output frequency 0 MHz-4 MHz
(50% duty cycle)
I2C One I2C interface (up to 400 kbps) (Note 2)
SPI One SPI Master interface (up to 4 Mbps) (Note 3)
BLE Services Services supported GATT client and capabilities
FW Upgrade smartBASIC runtime engine FW
upgrade
(1) Via UART
(2) Via 2-Wire SWD Programming/Debug Interface
Note: JTAG required for upgrading between Central and
Peripheral firmware.
Programmability smartBASIC On-board programming language similar to BASIC.
smartBASIC application
download
(1) Via UART.
(2) Via Over the Air (If SIO_28 pin is pulled high
externally). Only for Peripheral role.
Control Protocols Any User defined via smartBASIC
Operating Modes Self-contained Run mode Selected by nAutoRun pin status:
nAutoRun = LOW (0V): Then runs $autorun$ (smartBASIC
application script) if it exists.
Interactive / development
mode
nAutoRun = HIGH (VCC): Then runs via at+run (and “file
name” of smartBASIC application script).
Supply Voltage Supply (VCC) 2.1V – 3.5V Internal DCDC converter (Note 5)
1.8V – 2.1V Internal LDO
DCDC switched on if VCC >2.1V at power-up
BLE Power Consumption Active modes peak current
(for Max TX PWR 3 dBm)
Connected mode
(Vcc=3.3V)
12.7 mA peak TX
11.9 mA peak RX
Active modes peak current
(for TX Whisper mode2 PWR
-55 dBm)
Connected mode
(Vcc=3.3V)
5 mA peak TX
11.9 mA peak RX
Active modes average current Depends on many factors. See Power Consumption.
Ultra-low power modes Standby Doze
Deep Sleep
4.2 uA typical (Note 6)
750 nA (Note 6)
Antenna Options BLE (Internal) chip antenna On-board ceramic chip monopole antenna
-1.5 dBi