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E34-2G4D20SX Full-duplex wireless data transmission module Automatic frequency hopping anti-interference low latency high-speed serial

[Introduction]：E34-2G4D20SX product is a full-duplex wireless data transmission module developed by Ebyte, which operates in the 2.4-2.518GHz frequency band, has TTL level output, is compatible with 3.3V and 5V IO port voltages, and uses a serial port for data transmission and reception. The typical characteristics of the wireless module are high-speed transmission, and it can achieve full-duplex characteristics (simultaneous bidirectional transmission and reception) at a variety of baud rates, with no limit on packet length, support for uninterrupted transmission, and support for file transmission.

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PIN
Pin number Pin name Pin direction Pin usage
1 RESET InputModule reset pin, 3.3V.
2 GND - Module ground wire
3 NC - Empty feet (not open for use, users do not need to care)
4 NC - Empty feet (not open for use, users do not need to care)
5 NC - 485_EN control pin
6 NC - Burning pin
7 NC - Burning pin
8 GND - Module ground wire
11 GND - Module ground wire
12 ON - Antenna interface (high frequency signal output, 50 ohm characteristic impedance)
13 GND - Module ground wire
14 GND - Module ground wire
15 GND - Module ground wire
16 GND - Module ground wire
19 GND - Module ground wire
20 M0 Input (very weak pull-up) Cooperate with M1 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used)
21M1 Input (very weak pull-up) Cooperate with M0 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used)
22RXD InputTTL serial port input, connected to the external TXD output pin;
23TXD output TTL serial port output, connected to the external RXD output pin;
24TO output Used to indicate the working status of the module; the user wakes up the external MCU and outputs low level during power-on self-test initialization; (can be left floating)
25 VCC - Module power supply positive reference, voltage range: 2.3~5.5V DC
26 GND - Module ground wire