E220P-400T22S LoRa spread spectrum technology wireless transmission monitoring
[Chip solution]：LLCC68
[Frequency]：410.125~493.125MHz
[Transmitter power]：22dBm
[Communication distance]：7km
[Size]：16*26mm
[Product weight]：2g±0.1g
[Introduction]：E220P-400T22S adopts the new generation of LoRa spread spectrum technology, a wireless serial port module (UART) designed based on LLCC68 RF chip solution, and a built-in LNA, active temperature compensated crystal oscillator and receiving limiter in the wireless module. Under ideal conditions, the communication distance can reach 7km (5.6km for E220-400T22S), with stronger anti-interference ability and longer receiving distance. It supports functions such as air wake-up, carrier monitoring, communication key, and sub-packet length setting, and can provide customized development services.
| No. | Name | Direction | Features |
|---|---|---|---|
| 1 | GND | - | Ground |
| 2 | GND | - | Ground |
| 3 | GND | - | Ground |
| 4 | GND | - | Ground |
| 5 | M0 | Input（weak pull-up） | Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 6 | M1 | Input（weak pull-up） | Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 7 | RXD | Input | TTL UART inputs, connects to external (MCU, PC) TXD output pin |
| 8 | TXD | Output | TTL UART outputs, connects to external RXD (MCU, PC) input pin. |
| 9 | AUX | Output | Used to indicate the working status of the module;The user wakes up the external MCU and outputs low level during power-on self-check initialization; (can be left floating) |
| 10 | VCC | - | Power supply: 2.3~ 5.5V DC |
| 11 | GND | - | Ground |
| 12 | NC | - | Empty Pin |
| 13 | GND | - | Ground |
| 14 | NC | - | Empty Pin |
| 15 | NC | - | Empty Pin |
| 16 | NC | - | Empty Pin |
| 17 | NC | - | Empty Pin |
| 18 | NC | - | Empty Pin |
| 19 | GND | Ground | |
| 20 | GND | Ground | |
| 21 | ANT | - | Antenna |
| 22 | GND | - | Ground |