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E49-400M30S Ebyte Wireless data transmission module pure hardware module to develop and use
[Introduction]：E49-400M30S is a cost-effective wireless data transmission module launched by Chengdu Ebyte. It is a pure hardware module based on CMT2300A. E49-400M30S supports a maximum transmit power of 30dBm, and users can set a lower output power to save power consumption.
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| Pin number | Item | Pin direction | Pin purpose |
|---|---|---|---|
| 1 | GND | - | Ground |
| 2 | GND | - | Ground |
| 3 | GND | - | Ground |
| 4 | GND | - | Ground |
| 5 | GND | - | Ground |
| 6 | RXEN | Input | RF switch receiving control pin, connected to external MCU IO, high level effective |
| 7 | TXEN | Input | RF switch receiving control pin, connected to external MCU IO, high level effective |
| 8 | GPIO3 | Input/Output | Configurable general IO port (see CMT2300A manual for details) |
| 9 | VCC | - | Power supply, range 3.3 ~ 5.5V (external ceramic filter capacitor is recommended) |
| 10 | VCC | - | Power supply, range 3.3 ~ 5.5V (external ceramic filter capacitor is recommended) |
| 11 | GND | - | Ground |
| 12 | GND | - | Ground |
| 13 | GPIO2 | Input/Output | Configurable general IO port (see CMT2300A manual for details) |
| 14 | GPIO1 | Input/Output | Configurable general IO port (see CMT2300A manual for details) |
| 15 | FCSB | Input | SPI accesses FIFO slice selection |
| 16 | CSB | Input | SPI accesses FIFO slice selection |
| 17 | SDIO | Input/Output | SPI data input and output |
| 18 | SLCK | Input | SPI clock pin |
| 19 | NC | - | - |
| 20 | GND | - | Ground |
| 21 | ANT | - | Antenna interface, stamp hole (50Ω characteristic impedance) |
| 22 | GND | - | Ground |