[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.
| Main parameters | Min. | Typ. | Max. | Remark | |
|---|---|---|---|---|---|
| Operating Voltage(V) | 3.3 | 5.0 | 5.5 | ≥4.7V Guaranteed output power | |
| Communication level(V) | - | 3.3 | - | There is a risk of burnout when using the 5V level | |
| Operating temperature(℃) | -40 | - | 85 | Industrial grade design | |
| Working frequency(MHz) | 410.125 | - | 493.125 | Support ISM band | |
| Emission current(mA) | 850 | 1000 | 1200 | Instantaneous power consumption@33dBm | |
| Receive current(mA) | 11 | 13 | 15 | - | |
| Sleep current(uA) | - | 2 | - | software shutdown | |
| Maximum transmit power(dBm) | 32 | 33 | 34 | - | |
| Receive sensitivity(dBm) | -126 | -128 | -130 | Air rate 2.4 kbps | |
| Air rate(bps) | 2.4k | 2.4k | 62.5k | User programming control |
| Working parameters | Performance | Remark |
|---|---|---|
| reference distance | 16km | Clear and open, antenna gain 5dBi, antenna height 2.5 meters |
| Launch length | 240 Byte | It can be sent in packets of 32/64/128/240 bytes by setting the instruction |
| Cache capacity | 1000 Byte | - |
| Modulation | LoRa | A new generation of LoRa modulation technology |
| Communication Interface | UART serial port | TTL level |
| Packaging method | Plugin | - |
| Interface | Plug-in pin header | Spacing 2.54mm |
| Dimensions | 37*60*7.6mm | Tolerance ±0.1mm (excluding pin header height) |
| RF interface | SMA | Equivalent impedance is about 50Ω |
| 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 |
