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Serial port UART master & slave CC2540 Bluetooth Module

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Port: Shenzhen, China
Payment Terms: L/C,T/T,Paypal,Trade Assurance
Supply Ability: 100000 Piece/Pieces per Month cheap bluetooth beacon
Brand: RF-star
Antenna Type: PCB, 50 Ω characteristic impedance
Connector: SMD
Size/Weight: 24.1x15.2x1.9 mm / 1 g
Chipset: TI CC2540
Supply Voltage: 2.0 V ~ 3.6 V
Model Number: RF-CC2540A1
BLE Protocol: 4.0
Application: Home automation
Interface: UART, SPI, ADC ,USB
Power: Max +4 dBm (2.5 mW)
Distance: 20 m ~ 100 m
Country of Origin: China
Packaging Detail: RF-CC2540A1 CC2540 cheap bluetooth packed in corrugated cases with antistatic sponges
Shenzhen RF-Star Technology Co., Ltd.
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Product Description

 Serial port UART master & slave CC2540 Bluetooth Module 

BLE technology makes it possible that electronic devices bridge smart phones. Compared with those wireless transmission technologies such as WiFi, Bluetooth 2.0, BLE technology can get lower energy consumption, faster connection, longer distance of communication range, and other advantages. So it brings wider development scopes for smart phone peripherals.


Texas Instruments (TI) introduced CC254x series of SOC low-power Bluetooth transceiver. With classical 51 kernel inside, its most prominent features are rich periphery (including 21 IO, UART, SPI, USB2.0, PWM, ADC, analog comparator, op-amp)  

CC2540 moduleCC2540 ble moduleCC2540 ble4.0 module

Table 1. The Pin Functions of RF-CC2540A1



BLE Application


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