Cheap 4.0 module CC2540 RF-BM-S02

Product Description

RF-BM-S02 Bluetooth module is a low-power Bluetooth (BLE) RF module developed based on CC2540 chip. It can be widely used in the field of short-distance wireless communication. It has the characteristics of low power consumption, small size, long transmission distance, strong anti-interference ability, etc. The module is equipped with a high-performance snake antenna, adopts a half-hole hardware interface design, supports Bluetooth serial port transparent transmission and direct drive functions, and can work as a Bluetooth module slave and host.

Product Applications

2.4GHz low-power Bluetooth energy system

Mobile phone peripherals

Sports and fitness devices

Consumer health and medical

Home/building automation

Consumer electronics

Human interface devices (keyboards, mice, etc.)

Creative and novel electronic products

USB Dongle

Product Features  

Reference TA=25°C, VDD =3V and fc=2440 MHz

. Working frequency band: 2400-2483.5MHz

I/O port control level: 0-VCC

Transmit power: ≥4dBm (power programmable)

Receive sensitivity: -87dbm

. Frequency error: ±20khz

Module size: 11mm*15.2mm*1.9mm

Weight: 90g

Working temperature: -20℃-+60℃

Storage temperature: -55℃~+85℃. Reliability

. Mean time between failures: MTBF:>50000h

Low supply voltage 2.0-3.6V

True single-chip single-mode Bluetooth low-power solution

Battery voltage monitor and temperature sensor

RSSI output and carrier sense indication

High-performance and low-power 8051 core

Point-to-point, point-to-multipoint, flexible communication mode

Low power consumption: very low transmit and receive current, extremely low sleep current for easy operation, safety specifications, support AES security encryption and 24-bitCRC

Reliable verification transmission, support adaptive frequency hopping technology.

Wide application range, fully support GAP, ATT/GATT, L2CAP and other low-power Bluetooth host and control protocols, support

HIDS, ANP, BAS, FMP, HRT and other Bluetooth Alliance specifications released low-power Bluetooth application profiles. Customizable product functions.

Product Notes

Precautions for using this module

Is the power supply within the required voltage range? If there are special requirements for changing to a 3.6V power supply module, the power supply cannot exceed this voltage. Otherwise, the module is easy to burn out.

Do not reverse the positive and negative power supply, otherwise the module will burn out.

. This module is not waterproof or lightning-proof, so please do a good job of waterproofing and lightning protection.

. There are CMOS devices in the core chip of this module. Pay attention to anti-static during transportation and use. It is best not to contact the antenna part you match with metal objects.

The device should be well grounded to reduce parasitic inductance.

Try manual welding as much as possible. If machine mounting is required, please control the reflow soldering temperature not to exceed 205 degrees Celsius.

Do not lay copper under the module to prevent impedance changes.

The antenna should be away from other circuits to prevent low radiation efficiency and affect the normal use of other circuits.

The module should be placed away from other low-frequency circuits and digital circuits.

It is best to use magnetic beads to separate the module ground and power supply.

Product Photos

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