Low cost Ebyte Industrial IoT Plug-in 915MHz RF module long range wireless transmitter and receiver module
[Frequency]：850~930MHz
[Power]：20dBm
[Distance]：2.5km
[Antenna interface]：SMA
[Size]：36*21mm
[Introduction]：E49-900T20D is a super cost-effective wireless data transmission module launched by Chengdu Ebyte. It has 4 working modes. Each transmission method has its own characteristics and can be applied to various application scenarios. E49-900T20D can perfectly support industrial-grade applications, and has undergone rigorous testing at the factory to ensure its industrial reliability and batch consistency.
| Pin number | Pin name | Pin Orientation | Pin Usage |
|---|---|---|---|
| 1 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module. (Can be left floating, the module contains a pull-up resistor) |
| 2 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine 4 working modes of the module. (Can be left floating, the module contains a pull-up resistor) |
| 3 | RXD | Input | TTL serial port input, connected to the external TXD output pin; |
| 4 | TXD | Output | TTL serial output, connected to external RXD input pin; |
| 5 | AUX | Output | Used to indicate the working status of the module; the user wakes up the external MCU, and outputs a low level during the power-on self-test initialization |
| 6 | VCC | - | Module power positive reference, voltage range: 2.6V ~ 5.5V DC |
| 7~10 | GND | - | Module ground |