The EBYTE E07-M1101D is a low-power, 433MHz wireless transceiver module based on the Texas Instruments CC1101 chip. It typically features an 8-pin DIP (Dual In-line Package) header with a 2.54mm pitch. Pinout Definition
The module uses a standard SPI interface for communication with a microcontroller (like Arduino, ESP8266, or STM32). Pin Number Description 1 GND Ground connection 2 VCC Power supply (1.8V – 3.6V); 3.3V recommended 3 GDO0 General Purpose Digital I/O (configurable) 4 CSN SPI Chip Select (Active Low) 5 SCK 6 MOSI SPI Master Output, Slave Input 7 MISO SPI Master Input, Slave Output (GD01) 8 GDO2 General Purpose Digital I/O (configurable) Technical Specifications Chipset: Texas Instruments CC1101 Frequency Range: 387MHz to 464MHz (433MHz center)
Operating Voltage: 1.8V to 3.6V (⚡ Do NOT use 5V directly; it will damage the module) Max Power: 10dBm (~10mW)
Communication Distance: Up to 1000m (line-of-sight with high-quality antenna) Interface: SPI Critical Usage Notes
Voltage Compatibility: Always power the module with 3.3V. If using a 5V microcontroller (like an Arduino Uno), use level shifters on the data pins (SCK, MOSI, CSN) to prevent damage.
Antenna: The performance is highly dependent on the antenna. Ensure a 433MHz spring or SMA antenna is properly soldered/connected to the ANT pin or connector.
GDO Pins: GDO0 and GDO2 are often used for interrupts to notify the MCU when a packet is received or sent. External Documentation e07-m1101d pinout
For more detailed hardware design and register settings, refer to the E07-M1101D User Manual from Ebyte.
For library support, many users utilize the SmartRC-CC1101-Driver-Lib on GitHub. If you'd like, I can help you with:
A wiring diagram for a specific board (like Arduino Nano or ESP32) A sample code snippet for basic transmission Troubleshooting range or interference issues E07-M1101D-TH User Manual - Ebyte
The E07-M1101D is a high-performance, low-cost wireless transceiver module developed by Chengdu Ebyte Electronic Technology. Based on the Texas Instruments CC1101 chip, it is a staple in the DIY electronics community for short-range radio communication in the 433MHz ISM band. Understanding the E07-M1101D pinout is the first step for any hobbyist or engineer looking to integrate this module into a project. E07-M1101D Pinout and Interface
The module typically features a 2x4 (8-pin) DIP header, though some versions or similar models in the series may vary. It communicates with a microcontroller via a 4-wire SPI interface. Description GND VCC Power supply (1.8V to 3.6V) GDO0 General purpose digital output pin CSN SPI Chip Select (Active Low) SCK SPI Clock input MOSI SPI Master Out Slave In MISO/GDO1 SPI Master In Slave Out / General purpose output GDO2 General purpose digital output pin Key Technical Specifications
Operating Frequency: 387MHz to 464MHz (Standard 433MHz band) Transmission Power: Max 10mW (+10dBm), software-adjustable The EBYTE E07-M1101D is a low-power, 433MHz wireless
Communication Distance: Up to 1km in open areas (model dependent)
Modulation Modes: Supports OOK, ASK, GFSK, 2-FSK, 4-FSK, and MSK
Power Supply: 1.8V to 3.6V (3.3V is standard for best performance) Hardware Wiring and Design Tips
When connecting the E07-M1101D to a microcontroller like an Arduino or ESP32, keep the following best practices in mind:
| Pin Number | Pin Name | I/O | Description | Notes | | :--- | :--- | :--- | :--- | :--- | | 1 | VCC | Power | Power Supply Input | Connect to 3.3V. Do not exceed 3.6V. | | 2 | GND | Power | Ground | Connect to system ground. | | 3 | ANT | I/O | Antenna Interface | Connect to a 50Ω antenna. Do not leave floating. | | 4 | GND | Power | Ground | Connect to system ground. | | 5 | TXD | Output | UART Transmit | Connect to MCU RXD. | | 6 | RXD | Input | UART Receive | Connect to MCU TXD. |
(Note: On some versions of EBYTE modules, Pins 5 and 6 might be labeled as DATA/CLK or DI/DO if they operate in SPI mode. However, the "D" in M1101D usually signifies a built-in MCU for UART serial transmission, making TXD/RXD the correct interface for standard usage.) Pin Description Table | Pin Number | Pin
Even with the correct e07-m1101d pinout, errors happen. Here are the top 5 mistakes:
The e07-m1101d is often mistaken for having only 10 pins, but the antenna connection is essentially another “pin” in terms of functionality. Most variants have:
If using a wire antenna, solder a 17.3 cm wire (for 433 MHz) or 8.2 cm wire (for 868/915 MHz) to the ANT pad. Do not connect an antenna directly to any of the numbered pins 1–10.
E07-M1101D -> Arduino (3.3V version, e.g., Pro Mini 3.3V)
VCC (Pin 2) -> 3.3V GND (Pin 1) -> GND RXD (Pin 3) -> TX (Pin 2 on SoftwareSerial, or D1 on Uno) TXD (Pin 4) -> RX (Pin 3 on SoftwareSerial, or D0 on Uno) AUX (Pin 5) -> Digital Pin 4 (optional) M0 (Pin 6) -> Digital Pin 5 (or GND for default) M1 (Pin 7) -> Digital Pin 6 (or GND) RST (Pin 8) -> Digital Pin 7 (or 3.3V via 10kΩ)