E22-400T33D LoRa solution RF chip Wireless Serial Port Module new generation of LoRa wireless module
[Frequency]：410.125~493.125MHz
[Power]：33dBm
[Distance]：16km
[Product weight]：25.9±0.1g
[Size]：37*60*7.6mm
[Introduction]：E22-400T33D is a new generation of LoRa wireless module. It is a wireless serial port module (UART) based on the SEMTECH LoRa solution. It has various transmission methods. Level output, supports 3.3V-5.5V power supply voltage.
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| Pin number | Pin name | Pin Orientation | Pin usage |
|---|---|---|---|
| 1 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (can not be suspended, if not used, it can be grounded) |
| 2 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (can not be suspended, if not used, it can be grounded) |
| 3 | RXD | Input | TTL serial port input, connected to the external TXD output pin |
| 4 | TXD | Output | TTL serial output, connected to external RXD input pin |
| 5 | AUX | Output | Used to indicate the working state of the module; the user wakes Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T30D User Manual Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 8 up the external MCU, and outputs a low level during the power-on self-test initialization; (can be left floating) |
| 6 | VCC | Input | Connect to the internal reference ground of the module |
| 7 | GND | Input | Connect to the internal reference ground of the module |
| 8~15 | fixing hole | Input | Connect to the internal reference ground of the module |