F89ETSM13-W2 is a very popular wifi module. Thanks to very attractive price and huge possibilities quickly became a very popular choice - especially in OTT box.It requires stable power supply, and sophisticated programming method.
Main Chipset Realtek: RTL8189ETV-CG
Operating Frequency :2.400～2.4835GHz
Operating Voltage :3.3Vdc ±10% I/O supply voltage
Host Interface :SDIO/GPIO
Ad-hoc mode (Peer-to-Peer )
1. Wi-Fi Direct supports 802.11a, 802.11g, 802.11n, but does not support 802.11b. It is faster than ad-hoc mode and also supports WPA2 encryption mechanism.
2. The maximum transmission distance is 200 meters, the maximum transmission speed is 250Mbps, and it supports 2.4GHz and 5GHz frequency bands. Can realize one-to-one, and one-to-many.
3. Theoretically, it is possible for old Wi-Fi devices to obtain compatibility through firmware and software upgrades. However, the Wi-Fi Alliance does not guarantee that chip vendors will support the upgrade.