[Transmission power]：20dBm
[Communication distance]：70m
[Product size]：19x13x2.5mm
[Introduction]：E103-W04 is a high-performance and highly reliable wireless WiFi data transmission module developed by Chengdu Ebyte Electronic Technology Co., Ltd. The module integrates the transparent transmission function, which can be used immediately, and can realize serial port (TTL) data through WiFi. Device networking data interaction. Support IEEE802.11 b/g/n standard, support 4-way Socket connection; support Alibaba Cloud, Baidu Cloud, OneNet, standard MQTT protocol; support TCP/UDP/HTTP/MQTT multiple network communication protocols. The module is small in size, comes with PCB onboard antenna, works in the 2.4GHz frequency band, has low power consumption and fast data transmission. It is widely used in Internet of Things applications such as smart home appliances, smart homes, wireless audio and video, smart toys, medical monitoring, and industrial control.
| No. | Parameter name | Parameter value | Note |
| 1 | Product Size | 19x13x2.5mm | (LxWxH) |
| 2 | PCB technology | 2 layer | Impedance debugging |
| 3 | Working frequency | 2.4GHz | - |
| 4 | Production Process | Immersion gold process, half-hole process | Wireless products must be machine-attached to ensure batch consistency and reliability |
| 5 | Interface | 1.27mm | stamp hole |
| 6 | supply voltage | 3.0 ~3.6v DC | Voltage higher than 3.6V will cause permanent damage to the module |
| 7 | communication level | 3.6(max) | It is recommended that the difference from the supply voltage is less than 0.3V to reduce power consumption |
| 8 | Measured distance | 70m | Clear and open, maximum power, height 1.6m |
| 9 | transmit power | 20dBm | 10omw |
| 10 | AT support | support | Can be read by AT command |
| 11 | Wi-Fi version | 802.11b/g/n | - |
| 12 | Communication Interface | UART serial port | - |
| 13 | RF interface | PCB onboard antenna | 50 Ω characteristic impedance |
| 14 | Operating temperature | -40 ~+85℃ | industrial grade |
| 15 | Working humidity | 10% ~ 90% | relative humidity, non-condensing |
| 16 | Storage temperature | -40 ~+125℃ | industrial grade |
| 17 | product weight | 0.8 ± 0.1g | - |
| 18 | Working current | 100mA | 3.3V |