Hardware Specifications:
FLASH: QSPI flash 16MB
SRAM: 520 kB SRAM
Button: Reset
USB to TTL: CH9102
Modular interface: UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, ADC, capacitor touch sensor, DACLNA pre-amplifier
Display: IPS ST7789V 1.14 Inch
Working voltage: 2.7V-4.2V
Working current: About 60MA
Sleep current: About 120uA
Working temperature range: -40°C ~ +85°C
Size Weight: Approx. 51.52*25.04*8.54mm (7.81g)
Power Supply Specifications:
Power Supply: USB 5V/1A
Charging current: 500mA
Battery: 3.7V lithium battery
JST Connector: 2Pin 1.25mm
USB: Type-C
Wi-Fi:
Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
Protocol 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU polymerization, support 0.4μS Protection interval
Frequency range: 2.4GHz~2.5GHz (2400M~2483.5M)
Transmit Power: 22dBm
Communication distance: 300m
Bluetooth:
Protocol Meet Bluetooth v4.2BR/EDR and BLE standard
Radio frequency With -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH
Audio frequency CVSD&SBC audio frequency
Software specification:
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: IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
User Configuration: AT + Instruction set, cloud server, android/iOSapp
OS: FreeRTOS