E49-400T20D Low cost Ebyte Industrial IoT SMD 433mhz rf module long range wireless transmitter and receiver module 433
[Frequency]：410~510MHz
[Power]：20dBm
[Distance]：2.5km
[Size]：36*21mm
[Product weight]：5.3±1g
[Introduction]：E49-400T20D is an ultra-high cost-effective wireless module developed by Chengdu Ebyte. There are 4 operating modes. Each transmission mode has its own characteristics and can be applied to various application scenarios. E49-400T20D perfectly supports industrial-grade applications.
| Pin No. | Pin item | Pin direction | Application |
|---|---|---|---|
| 1 | M0 | Input（weak pull-up） | Work with M1 to decide 4 working modes of module (can be suspended, internalpull-up resistor). |
| 2 | M1 | Input（weak pull-up） | Work with M0 to decide 4 working modes of module (can be suspended, internalpull-up resistor). |
| 3 | RXD | Input | TTL UART input, connects to external TXD output pin. |
| 4 | TXD | Output | TTL UART output, connects to external RXD input pin. |
| 5 | AUX | Output | To indicate module ’s working status & wakes up the external MCU. During theprocedure of self-check initialization, the pin outputs low level. |
| 6 | VCC | Module power supply positive reference, voltage range: 2.6V ~ 5.5V DC | |
| 7 | GND | Ground | |
| 8 | GND | Ground | |
| 9 | GND | Ground | |
| 10 | GND | Ground | |