EWM226-900T22S Lawn mower wireless lora RF module 900M frequency band supports serial port IAP online upgrade
[Chip solution]：LoRa solution
[Operating frequency]：868MHz/915MHz
[Transmitting power]：22dBm
[Communication distance]：5km
[Product size]：14*17.5mm
[Product weight]： 1.2±0.1g
[Introduction]：EWM226-400T22S is a transceiver integrated lawn mower LoRa wireless data transmission module, which works in the 410-510MHz frequency band, supports multiple power gear selections, free switching of air data rates, rich serial port baud rate selections, and easy operation. This lora module is suitable for high-speed transmission application scenarios such as smart security, advanced meter reading, and lawn mowers.
| Main parameters | performance | Remark | |
| Minimum | Maximum | ||
| Supply voltage (V) | 0 | 5.5 | Over 5.5V will permanently burn the module |
| Operating temperature (°C) | -40 | 85 | Industrial Grade |
| Storage temperature (℃) | -40 | 125 | - |
| Main parameters | performance | Remark | |||
| Minimum | Typical Value | Maximum | |||
| Normal voltage mode | 3.3 | 5 | 5.5 | ≥3.3V can guarantee output power | |
| Communication level (V) | - | 3.3 | - | Using 5V TTL may burn out | |
| Operating frequency band (MHz) | 863 | - | 928 | 863~870MHz,902～928MH | |
| Transmit power (dBm) | H Level | 22 | Default H | ||
| M-level | 17 | ||||
| L Level | 14 | ||||
| Receiving sensitivity (dBm) | - | -124 | - | - | |
| Power consumption | Emission current (mA) | - | 110 | - | Power level is H |
| Receive current (mA) | - | 12.2 | - | - | |
| Main parameters | describe | Remark |
| Reference distance | 5.0Km | Clear and open environment, height 2.0 meters, 22dBm, air data rate 4800bps |
| Modulation | LoRa | - |
| Air speed | 4800～19200bps | Air data rate, software adjustable in multiple levels |
| Transfer rate | 580 | @Serial port baud rate 115200bps, air rate 9600bps |
| 500 Bytes/s | @Serial port baud rate 9600bps, air rate 9600bps | |
| Communication interface | UART | - |
| Working Mode | Half Duplex | - |
| Packaging | SMD | - |
| Dimensions | 14*17.5mm | ±0.2mm |
| Antenna interface | IPEX 1st generation/stamp hole | The equivalent impedance is about 50Ω, and the factory default is IPEX 1 generation antenna seat |
| Product Weight | 1.2 | ±0.1g |
