The CSW220A module long-distance wifi module focuses on the Internet of Things technology. Its innovative LR-WiFi technology (Long Range WiFi) solves the problem of low-cost, high-performance, high-speed, and long-distance wireless communication, reshaping the Internet of Things WiFi transmission boundary.
LR-WiFi: The main technology comes from WiFi, which not only has the characteristics of WiFi easy to use, mature, and can be networked, but also solves the missing problem in WiFi: distance.
LR-WiFi has a hundred times that of LoRa, zigbee and other narrow-band communications and a slightly lower rate than WiFi. It can also be compatible with WiFi through an external wireless network card. It can be widely used in wireless cameras, drones, smart buildings, smart agriculture, and wisdom. Fields such as factories, robots, stage and musical instruments.
parameter | Traditional WIFI | Bluetooth | Zigbee | LoRa WAN | NB-IOT | 802.11ah (Halow) | LR-WiFI |
Transmission distance | 100m~400m | 15m~60m | 50m~300m | 300m~27Km | <20Km | <10Km | ≤15Km |
Transmission rate | 100~300Mbps | 1M/24Mbps | 250Kbps | 0.3~50Kbps | 20~127Kbps | <10Mbps | ≤40Mbps |
Working frequency | 2.4G /5GHz | 2.4GHz | 2.4G/Sub1GHz | Sub 1GHz | Licensed | Sub 1GHz | 2.3/2.4GHz |
Node access capability | 32 | 8 | 6.5W | 6.5W | About 20W | 8000 | 32 |
Network topology | Star/Relays/Mesh | Mesh | Mesh | Star | Star | Star | Star/Mesh |
Power consumption | Higher | Lower | Low | Lower | Lower | Lower | generally |
Applicable scene | Average family Office environment | Close-up audio and control | Smart home Low-speed equipment | Large-scale low-speed networking | Large-scale low-speed direct network access | Large-scale long-distance transmission | Long-distance high-speed transmission |
parameter | index |
working frequency | 2.3/2.4GHz |
throughput | Adaptive, ≤ 50Mbps |
High transmitting power | 20dBm |
Long transmission distance | 8 ~ 9km (no ground to air interference, 2Mbps), 300 ~ 500m in the noisy ground environment in typical cities |
working temperature | -20~80℃ |
working voltage | 5V |
power waste | 0.5W (typical) 1.5W (large) |
Receiving sensitivity | -94dBm (Min) |
delayed | Typical value 4ms |
Package size | 34mm*26mm*4mm ( L*W * H) |
encryption | WPA2 AES |
Network topology | Point to point, point to multipoint, mesh |
Transmission technology | OFDM TDD LR-WiFi |
Functional application | Integrated serial port transparent transmission, audio function |
FEC | LDPC |
Antenna interface | IPEX x2 |
Interface | MIC_IN UARTx2 USB_OTG HEADPHONE_Out GPIO SDIO 10 / 100M Ethernet |