E220-900T30S loRa module
[IC]：LLCC68
[Frequency]：850.125~930.125MHz
[Power]：30dBm
[Distance]：10km
[Size]：25*40.5mm
[Introduction]：E220-900T30S is a new generation of LoRa wireless serial port module(UART), based on Semtech's original LLCC68 chip design. It has a variety of transmission methods, works in the (850.125～930.125MHz) frequency band(default 873.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage.
| No. | Name | Direction | Function |
|---|---|---|---|
| 1 | M0 | Input(weak pull-up) | Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 2 | M1 | Input(weak pull-up) | Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded) |
| 3 | RXD | Input | TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can be configured as open-drain or pull-up input. Ground |
| 4 | TXD | output | TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can be configured as open-drain or push-pull output |
| 5 | AUX | output | To indicate module ’ s working status & wakes up the external MCU.During the procedure of self-check initialization, the pin outputs low level.Can be configured as push-pull output (can be suspended). |
| 6 | VCC | Input | Power supply ：3.3~ 5.5V DC |
| 7 | GND | Input | Ground |
| 8 | NC | Input | can be suspended |
| 9 | GND | Input | Ground |
| 10 | NC | Input | can be suspended |
| 11 | NC | Input | can be suspended |
| 12 | NC | Input/output | can be suspended |
| 13 | NC | Input/output | can be suspended |
| 14 | NC | Input/output | can be suspended |
| 15 | GND | - | Ground |
| 16 | GND | - | Ground |
| 17 | GND | - | Ground |
| 18 | ANT | output | High frequency signal output, 50 ohm characteristic impedance |