void setup() Serial.begin(115200); ELECHOUSE_cc1101.setSpiPin(5, 18, 23, 19); // SS, SCK, MOSI, MISO ELECHOUSE_cc1101.Init(); ELECHOUSE_cc1101.setCC1101(433.0); // Set frequency Serial.println("e07-m1101d ready");
The e07-m1101d is often mistaken for having only 10 pins, but the is essentially another “pin” in terms of functionality. Most variants have:
Independent 64-byte RX and TX FIFOs for hardware-level packet processing. device.report Critical Usage Tips E07-M1101D Module, - Networking, Protocols, and Devices 2 May 2025 — e07-m1101d pinout
GDO0 and GDO2 are often used for interrupts to notify the MCU when a packet is received or sent. External Documentation
The is an industry-standard, sub-1 GHz wireless transceiver module built around the highly mature Texas Instruments CC1101 RF chip . Operating primarily in the license-free 433 MHz ISM band , it delivers adjustable transmitting power up to 10 dBm (10 mW) and reliable data transmission up to 600 meters . Understanding the exact e07-m1101d pinout is critical to properly interfacing this module with popular microcontrollers like Arduino, ESP8266, or ESP32 without frying its low-power silicon. void setup() Serial
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)
Because this module operates at , you must be careful when connecting it to 5V microcontrollers like the Arduino Uno. 1. ESP8266 / NodeMCU Connection VCC (Pin 2) -> 3
. Synchronizes data movement handled by the host controller. 6 MOSI
When connecting the E07-M1101D to a microcontroller like an Arduino or ESP32, keep the following best practices in mind:
Controlling smart lights or security sensors.
The module typically features an 8-pin interface. Understanding these pins is critical for interfacing the module with microcontrollers like Arduino, ESP32, or STM32. Pin Number Description VCC Power Supply (Typical 1.8V to 3.6V DC). 2 GND Ground connection. 3 SI SPI Data Input (MOSI). 4 SCLK SPI Clock Input. 5 SO SPI Data Output (MISO). 6 GDO0 General Digital Output 0 (configurable). 7 CSN Chip Select Not (Active Low). 8 GDO2 General Digital Output 2 (configurable). Key Specifications