[Transmitting power]:20dBm
[Communication distance]:2.5km
[Packaging method]: SMD
[Product size]: 16*26mm
[Introduction]:E34-2G4H20SX product is a wireless data transmission module developed by Ebyte, which works in the 2.4-2.518GHz frequency band, half-duplex, TTL level output, compatible with 3.3V, 5V IO port voltage, and uses the serial port for data transmission and reception. The wireless module has the characteristics of automatic frequency hopping, strong anti-interference ability, high transmission rate and low delay.
Pin number | Pin name | Pin direction | Pin usage |
1 | RESET | Input | Module 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) |
21 | M1 | 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) |
22 | RXD | Input | TTL serial port input, connected to the external TXD output pin; |
23 | TXD | output | TTL serial port output, connected to the external RXD output pin; |
24 | TO | 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 |