((full)): E07-m1101d Pinout

E07-M1101D is a 433MHz wireless transceiver module based on the Texas Instruments CC1101 chip. It typically features a 2x4 (8-pin) DIP header Pinout Configuration (8-Pin Layout)

Most versions of this module, including the E07-M1101D-SMA and E07-M1101D-TH, follow this standard pin definition: Pin Number Description Supply voltage (1.8V to 3.6V). Do not use 5V SPI Data Input. SPI Clock Input. SPI Data Output. General Purpose Digital I/O 2. SPI Chip Select (Active Low). General Purpose Digital I/O 0. Key Specifications Operating Voltage: 1.8V – 3.6V (3.3V is standard). Frequency Range: 387MHz – 464MHz (Optimized for 433MHz). Communication Interface: Maximum Transmit Power: +10 dBm (10 mW). Sensitivity: -112 dBm at 1.2 kbps. Critical Usage Notes Power Supply:

Using a 5V controller (like an Arduino Uno) without level shifters or a dedicated 3.3V supply can destroy the chip. Pin Numbering Orientation: When looking at the component side

(top side where the chip is soldered), Pin 1 is typically indicated by a square pad or a small mark. e07-m1101d pinout

A standard 433MHz spring or SMA antenna is required for stable communication; without it, range will be limited to a few meters. Arduino Forum for connecting this module to an Not able to PROG a new remote - ESP8266 and E07-M1101d #22

E07-M1101D Pinout Diagram

The module typically uses a 2.0mm pitch spacing (double check your specific PCB footprint, as some EBYTE modules vary between 1.27mm and 2.0mm).

      _______________
     |               |
     |    ANTENNA    |
     |      (1)      |
     |_______________|
       |  |  |  |  |
       |  |  |  |  |
       6  5  4  3  2  1  (Pin Numbers viewed from bottom)

(Note: Pin 1 is typically marked with a pad or near the antenna connection point on the PCB edge.) E07-M1101D is a 433MHz wireless transceiver module based

Mode Pins (M0 & M1)

These determine the operating mode (e.g., normal, wake-up, power-saving, or configuration mode). Common mode table:

| M1 | M0 | Mode | Description | |----|----|-----------------|----------------------------------| | 0 | 0 | Mode 0 (Normal) | Wireless UART (transparent) | | 0 | 1 | Mode 1 (Wake-up) | Address wake-up transmission | | 1 | 0 | Mode 2 (Power-saving) | Low power listening | | 1 | 1 | Mode 3 (Config) | Enter AT command setup |

Q3: Why are there two GND pins?

To reduce ground inductance and improve RF performance. Always connect both if possible. E07-M1101D Pinout Diagram The module typically uses a 2

4.4 Antenna (Pin 1)

• ANT – 50 Ω unbalanced. If using a monopole antenna, place a π-matching network (e.g., two caps and an inductor) to tune for your frequency.
• Keep the trace from pin 1 to the antenna as short and direct as possible, with 50 Ω controlled impedance.

Practical Implications and Common Pitfalls

Understanding the pinout prevents three classic mistakes:

1. Voltage Mismatch: The VCC pin is strictly 3.3V. Applying 5V will instantly destroy the module. Conversely, the logic pins (SI, SCLK) are 5V-tolerant in most revisions, but the datasheet should always be verified.
2. The Missing Pull-Up: The CSN pin is active-low, but it floats when the microcontroller is in reset. A weak pull-up resistor (10kΩ to 3.3V) on CSN prevents spurious SPI activity during system startup.
3. Ignoring GD0: A common beginner error is to sample SO (MISO) immediately after sending a read command. Proper design uses GD0 to signal when the data is actually ready, avoiding premature reads and corrupted packets.

Q1: What is the difference between e07-m1101d and CC1101?

The e07-m1101d is a breakout module containing the CC1101 chip, crystal, matching network, and antenna connector. The pinout refers to the module’s pads, not the IC’s bare pins.

3. Detailed Description of Each Pin

Reset & Antenna

• RST (Pin 8): Active low. Connect to 3.3V via a 10kΩ pull-up if not controlled by MCU.
• ANT (Pin 11): Solder a 50Ω quarter-wave antenna (e.g., ~8.2 cm wire for 915 MHz) or use a U.FL pigtail.