Ebyte E30 Series module test board SI4438/4463 Development Evaluation Kit USB interface pre welding interface
[Interface]：USB
[Size]：53*27mm
[Introduction]：E30-400M20S is a hardware module (SPI) based on the SI4463 RF chip imported from Silicon Labs. It is a half-duplex, SMD integrated transceiver with transparent transmission available. With working frequency band 425～525MHz, transmitting power 100mW, it is suitable for a variety of environments.
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| Pin number | definition | Functional Description |
| 1 | VCC | The module power supply pin needs to be short-circuited with pin 2 to power the module. |
| 2 | 3.3V | 3.3V power pin |
| 3 | 3.3V | 3.3V power pin |
| 4 | SAW | MCU power supply pin, needs to be short-circuited with pin 3 to power the MCU |
| 5 | GND | Baseplate reference ground |
| 6 | REST | MCU external reset pin |
| 7 | SWIM | MCU's SWIM pin |
| 8 | SAW | MCU power supply pin |
| 9 | PC0 | Module reset pin |
| 10 | PB7 | Module MISO pin |
| 11 | PB6 | Module MOSI pin |
| 12 | PB5 | Module SCLK pin |
| 13 | PB4 | Module NSS pin |
| 14 | TXD | MCU serial port TXD |
| 15 | RXD | MCU serial port RXD |
| 16 | M1 | Module mode switching pin (see module product manual for details) |
| 17 | GND | Baseplate reference ground |
| 18 | M0 | Module mode switching pin (see module product manual for details) |
| 19 | GND | Baseplate reference ground |