CC1101 433MHz Sub-GHz Wireless Transceiver Module (SMA External Antenna)
Long-Range, Low-Power Sub-1 GHz RF Communication for Microcontrollers
The CC1101 Sub-GHz Wireless Transceiver Module is a high-performance, low-power RF transceiver designed for long-range wireless data communication. Operating primarily in the 433MHz ISM band (configurable across sub-1GHz frequencies), this module provides significantly greater range and obstacle penetration compared to standard 2.4GHz Wi-Fi or Bluetooth devices.
Equipped with an external SMA glue-stick antenna, this version delivers superior range, signal stability, and immunity to interference—making it ideal for smart metering, remote control systems, and home automation projects.
Key Features
High-Performance Transceiver: Capable of both transmitting and receiving wireless data (half-duplex operation).
Superior Range & Penetration: Sub-1 GHz signal easily passes through walls, concrete, and physical barriers compared to 2.4 GHz modules.
External SMA Antenna: Includes a long high-gain rubber/glue-stick antenna for maximum range and stable signal transmission.
Flexible Modulation Formats: Supports 2-FSK, 4-FSK, GFSK, MSK, and OOK / ASK modulation.
SPI Bus Interface: Easily connects to microcontrollers like Arduino, ESP32, STM32, and Raspberry Pi via SPI interface.
Ultra-Low Power Draw: Features low current consumption and fast sleep/wake-up modes for battery-powered sensor nodes.
ICASA-Compliant Frequencies: Operates within the standard 433.92 MHz Sub-GHz band used extensively across South Africa for remote access.
Common Applications
Automated Gate & Garage Doors: Interfacing with or capturing 433MHz RF gate/garage remotes (Centurion, ET Nice, Sherlo, etc.).
Smart Home & IoT Sensors: Long-range wireless weather stations, water/electricity meters, and environmental monitors.
Industrial Monitoring: Wireless telemetry, remote keyless entry, and alarm system receivers.
Sub-GHz Signal Analysis: Hardware tools (like Flipper Zero or custom microcontroller setups) for RF signal sniffing and debugging.
Technical Specifications
| Parameter | Specification |
| RF Chipset | Texas Instruments CC1101 |
| Operating Frequency | 300–348 MHz, 387–464 MHz (Optimized for 433 MHz), 779–928 MHz |
| Communication Interface | SPI (Serial Peripheral Interface) |
| Operating Voltage | 1.8V – 3.6V DC (3.3V logic level required) |
| Max Output Power | +10 dBm (Programmable) |
| Data Transmission Rate | 0.6 kbps to 500 kbps |
| Antenna Connector | SMA Female (Includes 433MHz Rubber Glue-Stick Antenna) |
| Operating Temperature | -40°C to +85°C |
Pinout & Connection Guide
Note: The CC1101 operates at 3.3V logic. When connecting to 5V microcontrollers (like an Arduino Uno), use a logic-level converter or inline resistors on the SPI lines to prevent damage.
| Pin Name | Description |
| VCC | Power Supply Input (1.8V to 3.6V Max, strictly 3.3V) |
| GND | Ground (0V) |
| CSN | Chip Select (SPI Slave Select - Active Low) |
| SCK | SPI Serial Clock line |
| MOSI | SPI Master Out Slave In |
| MISO | SPI Master In Slave Out |
| GDO0 | Programmable Digital Output Pin (Interrupt / Packet Ready) |
| GDO2 | Programmable Digital Output Pin (Data / Sync Output) |
Package Includes
1 × CC1101 Sub-1 GHz RF Wireless Transceiver Module Board
1 × High-Gain 433MHz SMA External Rubber "Glue Stick" Antenna