[IC]:CMT2300A
[Frequency]:850~930MHz
[Power]:20dBm
[Distance]:3km
[Size]:20*14mm
[Weight]:1.2±0.1g
[Feature]:Low power consumption, high cost performance
[Introduction]:E49-900M20S is a cost-effective wireless data transmission module launched by Chengdu Ebyte.It is A pure hardware module based on CMT2300A.E49-900M20S Supports the maximum transmission power of 20dBm, users can set a lower output power,thus saving power consumption.The module works in the 850MHz ~ 930MHz frequency band, including the commonly used 868MHz and 915MHz frequency band.Since this module is a pure RF transceiver module, using SPI interface, needs MCU driver.
Pin No. | Item | Direction | Description |
1 | GND | - | Ground |
2 | GND | - | Ground |
3 | GND | - | Ground |
4 | GND | - | Ground |
5 | GPIO1 | DIO | Configurable multi-function IO port (see CMT2300A manual for details) |
6 | GPIO2 | DIO | Configurable multi-function IO port (see CMT2300A manual for details) |
7 | GPIO3 | DIO | Configurable multi-function IO port (see CMT2300A manual for details) |
8 | VCC | - | Power supply -3.3V |
9 | GND | - | Ground |
10 | GND | - | Ground |
11 | SCLK | DI | SPI clock pin |
12 | SDIO | DIO | SPI data pm |
13 | CSB | DI | SPI register accesser |
14 | FCSB | DI | SPI FIFO accesser |
15 | GND | - | Ground |
16 | GND | - | Ground |
17 | ANT | - | RF module stamp hole interface,impedance 50Ω |
18 | GND | - | Ground |