Product description Simple Circuit Diagram Power Supply
Specifications
Power SupplyUSB 5V/1A Charging current500mA Battery 3.7V lithium battery Wi-Fi Description Frequency range 2.4GH z~ 2.5GH z(2400M~ 2483.5M ) Transmit Power22dBm Communication distance300m Protocol 802.11 b/g/n( 802.11 n, speed up to150Mbps)A-MPDU and A-MSDU Hardware
Specifications
Extended functionVGA, PS/2 ButtonresetIO36 USB to TTLCP2104 On-board clock40MHz crystal oscillator Working voltage 2.7V - 3.6V Working currentabout 30 mA Sleep current230uA Working temperature range - 40°C ~ +85°C Modular interface UARTSPI SDIOI2C LED PWM TV PWMI2SIRGPI
Ocapacitor touch sensorADCDACLNA pre-amplifier
Size without VGA: 60.99 mm* 32.06 mm* 16.79 mm with
VGA: 66.7 omm* 32.06 mm* 16.79 mm Weight 21.25 g Bluetooth Description Protocolmeet bluetooth v 4.2BR /EDR and BLE standard Radio frequencywith -97dBm sensitivity NZIF receiver Class-1 Class-2&Class-3 emitter AFH Audio frequencyCVSD&SBC audio frequency Software specification
Description Wi-Fi Mode: Station/SoftAP/SoftAP +Station/P2P
Security mechanism: WPA/WPA2/WPA2 Enterprise/WPS
Encryption Type: AES/RSA/ECC/SHA
Firmware upgrade: UART download/OTA (Through network/host to download and write firmware)
Software Development: Support cloud server development /SDK for user firmware development
Networking protocol: IPv4IPv6 SSL.
TCP/UDP/HTTP/FTP/MQTT User Configuration: AT + Instruction set, cloud server, android/iOSapp
OS: FreeRTOS
Add Function: Audio Frequency