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Comprehensive Guide to the E07-M1101D Pinout (CC1101 433MHz Module)

In the rapidly evolving landscape of the Internet of Things (IoT) and embedded systems, the difference between a successful prototype and a failed project often hinges on the smallest details. Among these critical details is the pinout—the functional map of a module’s physical interface. The , a compact and powerful 433MHz wireless transceiver module based on the CC1101 chipset, is a perfect case study. Understanding its pinout is not merely about connecting wires; it is about understanding the module’s operational philosophy, power management, and data flow. The E07-M1101D’s pin configuration is a masterclass in efficient design, balancing minimalism with functional necessity for long-range, low-power applications.

is a highly popular, low-power sub-1 GHz wireless transceiver module operating at , built around the industry-standard Texas Instruments CC1101 RF chip. Understanding the exact e07-m1101d pinout is critical because the module requires a precise SPI interface and proper 3.3V power management to avoid permanent hardware damage. This module is widely used in smart home automation, industrial sensor networks, and DIY IoT projects. E07-M1101D Pin Definition & Layout E07-M1101D - DONE.LAND e07-m1101d pinout

| Pin | Name | Direction | Description | |-----|----------|-----------|-----------------------------------------------| | 1 | GND | Power | Ground (0V) | | 2 | VCC | Power | Power supply (1.8V – 3.6V DC) | | 3 | RXD | Input | UART Receive (Connect to TX of host MCU) | | 4 | TXD | Output | UART Transmit (Connect to RX of host MCU) | | 5 | AUX | Output | Indicator pin (Low = busy, High = ready/idle) | | 6 | M0 | Input | Mode setting pin 0 (Internal pull-down) | | 7 | M1 | Input | Mode setting pin 1 (Internal pull-down) | | 8 | RST | Input | Reset (Active low; pull high for normal run) | | 9 | NC | – | No connection (leave floating) | | 10 | GND | Power | Ground (0V) | | 11 | ANT | RF | Antenna (50Ω, usually via a hole/pad) | | 12 | GND | Power | Ground (0V) |

| Pin | Name | Type | Description | | :-- | :------- | :------ | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 1 | | Power | Ground (0V). This pin must be connected to the ground of your power supply and your microcontroller. In 10-pin versions, multiple GND pins are present but they are all internally connected. | | 2 | VCC | Power | Power Supply (1.8V – 3.6V). The module is strictly a 3.3V device. For optimal performance, a stable 3.3V supply is recommended. Never apply 5V , as this will cause permanent damage. | | 3 | GDO0 | Digital Output | General Digital Output 0. This is a configurable general-purpose I/O pin on the CC1101. In many applications, it's configured as a "TX FIFO" indicator or can be left unconnected if not needed. | | 4 | CSN | Digital Input | Chip Select (Active Low). This is the slave select pin for the SPI bus. You must drive this pin LOW to initiate communication with the module. | | 5 | SCK | Digital Input | Serial Clock. This is the clock line for the SPI bus. The microcontroller generates this signal to synchronize data transfer. | | 6 | MOSI | Digital Input | Master Out, Slave In. This is the data line used by the master device (your microcontroller) to send data to the module. | | 7 | MISO/GDO1 | Digital Output | Master In, Slave Out / General Output 1. This pin serves a dual purpose. Primarily, it is the data line for the module to send data back to the master. It can also be used as a second configurable output pin (GDO1). | | 8 | GDO2 | Digital Output | General Digital Output 2. This is the most critical and commonly used status pin. It is often configured to output a signal on packet reception (RX FIFO), serving as an interrupt line to the microcontroller. | Comprehensive Guide to the E07-M1101D Pinout (CC1101 433MHz

The E07-M1101D, with its robust CC1101 core and clear 8-pin interface, offers an excellent balance of performance, low power consumption, and ease of use. By understanding its pinout and the functions of each pin—from the power supply and SPI lines to the versatile GDO interrupt pins—you can confidently integrate this module into a vast array of wireless projects. Whether you are a hobbyist or a professional, the E07-M1101D is a reliable and powerful tool for your wireless communication needs.

The configured in a 2x4 layout. This configuration handles power, a 4-wire SPI communication bus, and general-purpose digital input/output lines. Understanding its pinout is not merely about connecting

Perhaps the most elegant aspect of the pinout is the inclusion of and GD2 . These are not simple I/O pins; they are configurable interrupt lines. Depending on how you program the CC1101’s registers, GD0 can indicate various events: a packet has been received, a preamble has been detected, a transmission is complete, or the receive buffer is full.

Data transmitted from the microcontroller to the E07-M1101D.

The Ebyte E07-M1101D Go to product viewer dialog for this item.

The E07-M1101D is versatile and suited for: