1. 2.4G WiFi and BLE5.2 2. Memory 288KB/Flash 2MB 3.Support BLE fast distribution network 4. AP, STA&BLE mode 5. Low power consumption mode ~200uA Wireless parameters Wireless standard: IEEE 802.11b/g Bluetooth standard-BLE 5.2 Frequency range: 2.412-2.484GHz Transmit power: WiFi:18-19dBm/Bluetooth:10dBm(MAX) Receive sensitivity: -98dBm antenna Antenna type: external antenna (can be changed to onboard antenna) Hardware parameters Hardware interface: UART/PWM/GPIO/SPI/ADC Working voltage: 3.3V (2.7V~3.6V) GPIO driver: Max:12.8mA Operating current: -30mA/ 400mA Software parameters Wireless network: AP/STA/BLE Security mechanism: /WPA-/WPA2- Encryption type: WEP64/WEP128/TKIP/ Firmware upgrade: serial port upgrade Network protocols: IPv4, UDP, Lwip User configuration:AT+ set Other parameters Working temperature:-40-+85℃ Working humidity: 10%-90%RH (non-condensing) Storage temperature: -40-+85°C Storage humidity: 10%-90%RH (non-condensing) Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:As Shown Material:PCB Package Contents: 1 x Module 1 x Test Base Plate 1 x USB Cable 1 x 2.4G PCB Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.