Hardware Parameters: 1. Chipset: Micro32 2. Flash: QSPI flash 4MB 3. SRAM: 520 k - B SRAM 4. Button: Reset, IO36 5. Extended Function: VGA, PS/2 6. USB to TTL: CP2104 7. Modular Interface: UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA pre-amplifier 8. On-board Clock: 40MHz crystal oscillator 9. Working Voltage: 2.7-3.6V 10. Working Current: About 30m - A 11. Sleep Current: 230u - A Power Supply Specification: 1. Power Supply: USB 5V/1A 2. Charging Current: 500m - A 3. Battery: 3.7V lithium battery(Not included) WI-FI Parameters: 1. Standard: FCC/CE-RED/ID/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11b/g/n(802.11n, speed up to 150Mbps) A-MPDU and A-MSDU polymerization, support 0.45u - S Protection interval 3. Frequency Range: 2.4GHz-2.5GHz(2400M-2483.5M) 4. Transmit Power: 22b - Bm 5. Communication Distance: 300m Bluetooth Parameters: 1. Protocol: Meet bluetooth v4.2BR/EDR and BLE standard 2. Radio Frequency: With-97d - Bm sensitivity NZIF receiver Class-1, Class-2 & Class-3 emitter AFH 3. Frequency: CVSD & SBC frequency Software Parameters: 1. Wi-Fi Mode: Station/softAP/SoftAP + Station/P2P 2. Security Mechanism: WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type: AES/RSA/ECC/SHA 4. Firmware Upgrade: UART download/OTA (Through network/host to download and write firmware) 5. Software Development: Support cloud server development/SDK for use firmware development 6. Networking protocol: IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration: AT + Instruction set, could server, android/i - OSapp 8. OS: Free - RTOS 9. ADD Function: Frequency