CC1101 433MHz RF Transceiver Module

The CC1101 433MHz RF Transceiver Module brings low-power wireless communication on the 433MHz ISM band to your microcontroller projects. Built around the Texas Instruments CC1101 chip, it can both send and receive data at 10mW output power, making it ideal for remote sensors, home automation, wireless control, and telemetry links.

The module connects over a standard SPI interface and runs from a 3.3V supply. It supports 2-FSK, GFSK, MSK, and ASK/OOK modulation at data rates up to 500kbps, with programmable output power and high receive sensitivity. Hardware packet handling includes CRC error detection, address filtering, and separate 64-byte TX and RX buffers, which takes load off your microcontroller. Frequency, data rate, and output power are all software configurable, and the frequency can be adjusted within the 387MHz to 464MHz range.

Important: this is a 3.3V device and must not be powered from 5V. With 5V boards such as the Arduino Uno, use level shifting on the signal lines. Whether you are a hobbyist building a wireless weather station or a maker experimenting with sub-GHz protocols, this compact module is a flexible and affordable way to add wireless links.

Specification:

• Chipset : Texas Instruments CC1101
• Operating Frequency : 433MHz (ISM band)
• Programmable Frequency : 387MHz to 464MHz
• Interface : SPI
• Supply Voltage : 1.8V to 3.6V DC (3.3V typical)
• Logic Level : 0.7 x VCC to 3.6V (not 5V tolerant)
• Modulation : 2-FSK, GFSK, MSK, ASK/OOK
• Data Rate : Up to 500kbps
• Output Power : 10mW (+10dBm), programmable
• Receive Sensitivity : -110dBm at 1.2kbps
• Data Buffers : 64-byte TX and 64-byte RX FIFOs
• Packet Handling : CRC error detection, hardware address filtering
• Header : 8-pin, 1.27mm pitch
• Antenna : Spring antenna (fitted)
• Dimensions : 20.8mm x 12mm (without antenna)
• Package Includes : 1 x CC1101 433MHz RF Transceiver Module with spring antenna (jumper wires not included)