E220-400T22D adopts a new generation of LoRa spread spectrum technology and a wireless serial port module (UART) designed based on the LLCC68 chip scheme. It has a variety of transmission methods, works in the(410.125～493.125MHz) frequency band (default 433.125MHz), TTL level output, compatible with 3.3V and 5V IO port voltage It offers industry-leading power saving capabilities and up to 5km radio range under optimal conditions. With this device, you can enjoy extended wireless communication with minimal interference.
E220-400T22D technical manual download
Main parameter
| Supply Voltage | 3-5.5V |
| Dissipation Power | 22 dBm |
| Operating Temperature | -40 - +85 |
| Package | DIP |
| Type | Wireless Module |
| IC | LLCC68 |
| Working Frequency | 410.125~493.125MHz |
| Power | 22dBm |
| Distance | 5km |
| Size | 21*36mm |
| Antenna Type | SMA-K |
| Communication Interface | UART |
Detailed parameters
| Main Parameter | Performance | Remark |
|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band |
| Tx power | 22 dBm | - |
| Receiving sensitivity | -147dbm | Air data rate 2.4kbps |
| Air data rate | 2.4k~62.5kbps | To control via user’s program |
| Distance for reference | 5Km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate:2.4kbps |
| Main Parameter | Performance | Remark |
|---|---|---|
| Size | 21 * 36mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Communication interface | UART | TTL Level |
| Package | DIP | - |
| Main Parameter | Min | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 3.3 | 5.5 | V | ≥3.3V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be burning down |
| TX current | - | 110 | - | mA | Instant power consumption @30dBm |
| RX current | - | 16.8 | - | mA | 5V Voltage |
| Sleep current | - | 5.0 | - | uA | Sleep mode |
| Operating temperature | -40 | 20 | +85 | ℃ | Industrial design |
Pin parameters
| 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 TXD output pin. |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD input pin |
| 5 | 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) |
| 6 | VCC | Input | Voltage range: 3.0～5.5V DC |
| 7 | GND | Input | Ground |
| 8 | Fixed hole | - | Fixed hole |
| 9 | Fixed hole | - | Fixed hole |
| 10 | Fixed hole | - | Fixed hole |
