Pinout — E07-m1101d

For many libraries, if you are not using advanced packet features, you may only need to connect GDO0, while GDO2 can be left floating, though mapping it is recommended for full functionality.

The most widely used version of the E07-M1101D (often V2.0 or SMA variant) uses an layout, making it easy to use with breadboards and microcontrollers like Arduino, ESP8266, and ESP32. Pinout Diagram Table Description Connection Ground (0V) Power Supply 3.3V Only Digital I/O Interrupt Pin Chip Select Data Input Data Output Digital I/O Optional I/O Detailed Pin Description

A decoupling capacitor (e.g., 10µF to 100µF) placed close to the VCC and GND pins is highly recommended to handle current spikes during transmission. E07-M1101D-TH User Manual - Ebyte e07-m1101d pinout

Here are proven wiring examples for popular development boards.

The module is strictly 3.3V. Providing 5V to the VCC pin will damage the CC1101 chip. Ensure a stable supply. For many libraries, if you are not using

| E07-M1101D Pin | Pin Name | ESP32 GPIO Pin | | :--- | :--- | :--- | | 1 | GND | GND | | 2 | VCC | 3.3V | | 3 | GDO0 (TX) | GPIO 4 | | 4 | CSN | GPIO 5 | | 5 | SCK | GPIO 18 | | 6 | MOSI | GPIO 23 | | 7 | MISO | GPIO 19 | | 8 | GDO2 (RX) | GPIO 36 |

With hardware flow control

The module features 8 pins organized in a 2x4 layout. The layout cleanly separates power supply connections from the standard 4-wire Serial Peripheral Interface (SPI) and generic digital I/O lines. New V2.0 E07-M1101D-SMA CC1101 · Issue #104 - GitHub