[Chip solution]：LoRa solution

[Frequency]：433MHz

[Transmitting power]：20dBm

[Communication distance]：5km

[Size]：14*20mm

[Product weight]：2.0±0.1g

[Introduction]：The EWM32M-433T20S wireless module is an ultra-small, low-cost wireless serial port module (UART). It uses the LORA communication technology that is fully compatible with the E32. Its transmission power is 20dBm, it has multiple transmission modes, works in the 433 frequency band, has TTL level output, and is compatible with 3.3V IO port voltage. The LoRa spread spectrum module has the advantages of longer communication distance, strong anti-interference ability, and extremely strong confidentiality.