Silabs' Blue Gecko BGM111 is a smart Bluetooth 4.2 module that integrates a 40MHz 32-bit ARM® Cortex®-M4 core, flash 256kB, RAM32kB, and incorporates elements required by the application such as Bluetooth radio, software stack and GATT-based Profile. RF performance with excellent performance: Transmit power TX is +8dBm, receiving sensitivity RX is -92dBm, range up to 200m. Mainly used in health and fitness equipment, point of sale systems, consumer electronics, auto parts market , industrial and home automation equipment, etc. This article introduces the main features and product highlights of BGM111, block diagram, application connection diagram, and the main features of the starter board SLWSTK6101B, block diagram, hardware distribution diagram and circuit diagram.

The Blue Gecko BGM111 is a Bluetooth® Module targeted for Bluetooth low energy applicaTIonswhere reliable RF, low-power consumpTIon, and easy applicaTIon developmentare key requirements. At +8 dBm TX power, BGM111 is ideal for applicaTIons requiresshort and medium range Bluetooth connectivity.

The BGM111 integrates all of the necessary elements required for a Bluetooth application:Bluetooth low energy radio, a software stack, and GATT-based profiles, and it canalso host end user applications, which means no external microcontroller is required insize, price or power constrained The BGM111 Bluetooth Module also has highlyflexible hardware interfaces to connect to different peripherals or sensors.

Main features of BGM111:

• Bluetooth 4.2 Compliant

• Integrated antenna

• TX power: up to +8 dBm

• RX sensitivity: down to -92 dBm

• Range: up to 200 meters

• 32-bit ARM® Cortex®-M4 core at 40 MHz

• Flash memory: 256 kB

• RAM: 32 kB

• Autonomous Hardware Crypto Accelerator and Random Number Generator

• Integrated DC-DC Converter

• Onboard Bluetooth stack

BGM111 product highlights:

• Low Power Wireless System-on-Chip.

• High Performance 32-bit 40 MHz ARM Cortex®-M4 withDSP instruction and floating-point unit for efficient signalprocessing

• 256 kB flash program memory

• 32 kB RAM data memory

• 2.4 GHz radio operation

• TX power up to +8 dBm

• Low Energy Consumption

• 8.7 mA RX current at 2.4 GHz

• 8.2 mA TX current @ 0 dBm output power at 2.4 GHz

• 63 μA/MHz in Active Mode (EM0)

• 2.5 μA EM2 DeepSleep current (full RAM retention and RTCC running from LFXO)

• 2.1 μA EM3 Stop current (State/RAM retention)

• Wake on Radio with signal strength detection, preamblepattern detection, frame detection and timeout

• High Receiver Performance

• -92 dBm sensitivity @ 1 Mbit/s GFSK (2.4 GHz)

• Supported Protocols

• Bluetooth®

• Support for Internet Security

• General Purpose CRC

• Random Number Generator

• Hardware Cryptographic Acceleration for AES 128/256, SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC

• Wide Selection of MCU peripherals

• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)

• 2× Analog Comparator (ACMP)

• Digital to Analog Current Converter (IDAC)

• 25 pins connected to analog channels (APORT) shared betweenAnalog Comparators, ADC, and IDAC

• 25 General Purpose I/O pins with output state retention and asynchronous interrupts

• 8 Channel DMA Controller

• 12 Channel Peripheral Reflex System (PRS)

• 2×16-bit Timer/Counter

• 3 + 4 Compare/Capture/PWM channels

• 32-bit Real Time Counter and Calendar

• 16-bit Low Energy Timer for waveform generation

• 32-bit Ultra Low Energy Timer/Counter for periodic wake-upfrom any Energy Mode

• 16-bit Pulse Counter with asynchronous operation

• Watchdog Timer with dedicated RC oscillator @ 50nA

• 2×Universal Synchronous/Asynchronous Receiver/Transmitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I2S)

• Low Energy UART (LEUARTTM)

• I2C interface with SMBus support and address recognitionin EM3 Stop

• Wide Operating Range

• 1.85 V to 3.8 V single power supply

• 2.4 V to 3.8 V when using DC-DC

• Integrated DC-DC

• -40 °C to +85 °C

• Dimensions

• 12.9 x 15.00 x 2.2 mm

The main application of BGM111:

• IoT Sensors and End Devices

• Commercial and Retail

• Health and Wellness

• Industrial, Home and Building Automation

• Smart Phone, Tablet and PC Accessories

Figure 1. Block diagram of BGM111

Figure 2. Detailed block diagram of EFR32BG1

Figure 3. BGM111 and main CPU connection diagram

Figure 4. BGM111 SPI Peripheral Connection Diagram

Figure 5. BGM111 and I2C device connection diagram

Blue Gecko Bluetooth® Module Wireless Starter Board SLWSTK6101B

The Blue Gecko Bluetooth® Module Wireless Starter Kit is an excellent starting point to get familiar with the BGM111 Bluetooth Module.

The Wireless Starter Kit Mainboard contains sensors and peripherals demonstrating some of the BGM111's many capabilities. The kit provides all necessary tools for developing a Silicon Labs wireless application.

RADIO BOARD FEATURES

• BGM111 Blue Gecko Bluetooth Modulewith 256 kB Flash and 32 kB RAM. (P/NBGM111)

• Integrated high performance chip antenna

• Transmit power up to 8 dBm

• CPU core 32-bit ARM Cortex-M4

SOFTWARE SUPPORT

• Blue Gecko Bluetooth Software

• Blue Gecko Bluetooth SDK

• Example applications for the kit

• iOS and Android applications

Main features of SLWSTK6101B:

• Supplied with BGM111 Blue GeckoBluetooth Module Radio Board BRD4300A

• Supplied with BGM113 Blue GeckoBluetooth Module Radio Board BRD4301A

• Ethernet and USB connectivity

• SEGGER J-Link on-board debugger

• Debug Multiplexer supporting externalhardware as well as radio board

• Silicon Labs'Si7021 Relative Humidity andTemperature Sensor

• Ultra low power 128x128 pixel MemoryLCD

• LEDs / Push buttons / Reset button

• 20-pin 2.54 mm header for expansionboards

• Breakout pads for direct access to all radioI/O pins

• Power sources include USB and CR2032coin cell holder.

Main features of the expansion board:

• Accelerometer

• Buttons and LEDs

• Joystick

• Footprint for I2C Expansion device

Figure 6. Outline drawing of the SLWSTK6101B

SLWSTK6101B includes:

• 1x BRD4001A Wireless Starter Kit Mainboard

• 1x BRD4301A Blue Gecko BGM113 Bluetooth® Module Radio Board

• 1x BRD4300A Blue Gecko BGM111 Bluetooth® Module Radio Board

• 1x BRD8006A Blue Gecko Module Kit Add-on Board

• 1x CR2032 Lithium battery

• 1x USB Type A USB Mini-B cables

Figure 7. SLWSTK6101B hardware map

Figure 8. SLWSTK6101B hardware block diagram

Figure 9. SLWSTK6101B motherboard BRD4001_A01 circuit diagram (1)

Figure 10. Circuit diagram of SLWSTK6101B motherboard BRD4001_A01 (2)

Figure 11. SLWSTK6101B motherboard BRD4001_A01 circuit diagram (3)

Figure 12. Circuit diagram of SLWSTK6101B motherboard BRD4001_A01 (4)

Figure 13. Circuit diagram of SLWSTK6101B motherboard BRD4001_A01 (5)

Figure 14. Circuit diagram of SLWSTK6101B motherboard BRD4001_A01 (6)

Figure 15. SLWSTK6101B motherboard BRD4001_A01 circuit diagram (7)

Installation Accessory

Installation Accessory,Encoder Sensor With Coupling,Encoder Sensor Wheel,Sensor Encoder

Yuheng Optics Co., Ltd.(Changchun) , https://www.yuhengcoder.com