BLE5201 : BLE 5.2 Silabs Core Chip

The company's BLE5201 BLE module uses BLE 5.2 protocol and uses Silicon Labs' EFR32BG22C224 SOC chip. It has the characteristics of low power consumption, small size, long transmission distance, and strong anti-interference ability.
BLE5201 has ultra-low transmitting and receiving current (3.6 mA when transmitting power is 0 dBm; receiving 2.6 mA) and high-performance, low-power M33 core, which can extend the life of button batteries to ten years. Target applications include Bluetooth Mesh low-power nodes, smart door locks, personal healthcare and fitness equipment. The SOC’s Bluetooth Angle of Arrival (AoA) and Angle of Departure (AoD) functions and positioning accuracy within 1 meter will also benefit applications such as asset tracking tags, beacons, and indoor navigation. EFR32BG22C224 SOC provides IQ sampling capability, suitable for direction finding applications, and supports 125 KB and 500 KB Bluetooth Low Energy Coded PHY, which can increase the receiving sensitivity to -106 dBm. Supports applications that require direction finding or low energy Bluetooth Mesh nodes.
BLE5201 BLE module strictly uses lead-free technology for production and testing, and meets RoHS and Reach standards.

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Parameter		Performance			Remark
Parameter		Min.	Typ.	Max.	Remark
Operating Voltage(V)		1.8	3.3	4.3	>= 3.3V guaranteed output power
Communication level(V)			3.3
Operating temperature(℃)		-40		85	Industrial design
Working frequency(MHz)		2400		2483.5
Transmit power(dBm)		0		6
Receiving sensitivity(dBm)			-94.6
Power consumption	Emission current（mA）		7.5
	Receive current（mA）		8.5
	Sleep current（uA）		< 5		When there is no connection
Idle state current（mA）			6.58		Idle state: refers to no connection, no broadcasting/scanning of the module

Type	Bluetooth

Features of BLE module BLE5201

Developed based on Bluetooth BLE5.2 protocol
Support single slave and one master with multiple slaves, can connect multiple slaves at the same time, up to 8 connections
Support 2 working modes of configuration and transparent transmission
Support over-the-air upgrade (OTA DFU)
Support low power sleep
Support automatic broadcasting, scanning, connection
Support manual connection and automatic connection 2 connection methods
The maximum MTU is 247 bytes
Support custom 16-bit UUID, including one Service UUID and two Characteristic UUID
Maximum transmission distance 150m (6dBm, Coded PHY)
Support automatic binding
Support multiple serial port parameter configuration

Typical application circuit of BLE module BLE5201

Pins of BLE module BLE5201

Pin NO.	Pin name	Pin direction	Pin function	Description
1	GND	Enter	Power ground
2	PA00	Enter	Disconnect pin	Pull up by default. Low level: disconnect all Bluetooth connections and stop broadcasting/scanning; high level: resume broadcasting/scanning
3	PA01		SWCLK
4	PA02		SWDIO
5	PA03	Enter	Wake-up pin CS	Default pull-up: low level work, high level sleep
6	PA04	Enter	Module selection SET	Pull up by default. High level: transparent transmission mode; low level: configuration mode
7	PA05		TXD	Module serial data sending pin
8	PA06		RXD	Module serial port data receiving pin
9	GND		Power ground
10	VCC		Power positive
11	PC00		GPIO
12	PC01		GPIO
13	PC02		GPIO
14	PC03		GPIO
15	PC04		GPIO
16	PC05		GPIO
17	PB02	Output	Sleep state	Wake-up mode: high level; low power consumption mode: low level
18	PB01	Output	Mode status	Transparent transmission mode: low level; configuration mode: high level
19	RESET	Output	Reset	Built-in pull-up resistor, active low
20	PB00	Output	Connection Status	With connection: high level; no connection: low level