[Frequency]:220.125~236.125MHz
[Power]:22dBm
[Distance]:5km
[Size]:36*21mm
[Product weight]:7.6±0.1g
[Introduction]:E22-230T22D is a new generation of LoRa wireless module. It is a wireless serial port module (UART) based on SEMTECH's LoRa solution radio frequency chip. It has a variety of transmission methods and works in the (220.125~236.125MHz) frequency band (default 230.125MHz). LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltages.
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 input, connects to external TXD output pin. |
4 | TXD | Output | TTL UART output, connects to external RXD input pin. |
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.(suspending is allowed). |
6 | VCC | Input | Module power supply positive reference, voltage range: 2.3 ~ 5.5V DC |
7 | GND | Input | Ground |
8 | Fixed hole | - | Fixed hole(Connect to GND on the module) |
9 | Fixed hole | - | Fixed hole(Connect to GND on the module) |
10 | Fixed hole | - | Fixed hole(Connect to GND on the module) |