E220-400MBL-01 Ebyte E220 series module test board USB interface pre welding interface
[Interface]：USB
[Chip]：LLCC68
[Product weight]：126±0.1g
[Size]：53*27mm
[Introduction]：E220-400MBL-01 is an small module developed independently based on the generation of LoRa TM RF chip LLCC68 produced by Semtech company. LLCC68 is suitable for 433MHz and 470MHz SMD wireless module and uses industrial 32mhz crystal oscillator.
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| No. | Definition | Function Description |
|---|---|---|
| 1 | 3.3V | 3.3V Electric pin |
| 2 | 3.3V | 3.3V Electric pin |
| 3 | GND | Floor reference ground |
| 4 | GND | Floor reference ground |
| 5 | 3.3V | 3.3V Electric pin |
| 6 | GND | Floor reference ground |
| 7 | REST | MCU External reset pin |
| 8 | SWIM | SWIM pin of MCU |
| 9 | 3.3V | 3.3V Electric pin |
| 10 | VCC | Module power supply pin, need to be short-circuited with pin 9 to supply power to the module |
| 11 | PC6 | MCU ordinary IO |
| 12 | PC5 | MCU ordinary IO |
| 13 | PB3 | MCU ordinary IO |
| 14 | PB2 | MCU ordinary IO |
| 15 | PB1 | MCU ordinary IO |
| 16 | PB0 | MCU ordinary IO |
| 17 | M1 | Module mode switch pin (see module product manual for details) |
| 18 | M0 | Module mode switch pin (see module product manual for details) |
| 19 | PD1 | MCU ordinary IO |
| 20 | PD0 | MCU ordinary IO |
| 21 | GND | Floor reference ground |
| 22 | GND | Floor reference ground |
| 23 | 5V | 5V Electric pin |
| 24 | 5V | 5V Electric pin |