Feature:
FLASH: QSPI flash 4MB / PSRAM 8MB
SRAM : 520 kB SRAM
Button: reset
Power indicator lamp: red
USB to TTL: CP2104
Modular interface: UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touchsensor, ADC, DACLNA pre-amplifier
On-board clock: 40MHz crystal oscillator
Working voltage: 2.7V-3.6V
Working current: about 30mA
Sleep current: 10uA
Working temperature range: -40 - +85 degC
Size: 40.27mm x 31.07mm x 8.13mm
Wi-Fi | Description |
Standard | FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC |
Protocol | 802.11 b/g/n(802.11n,speed up to150Mbps)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 | Description |
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 | 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 | IPv4.IPv6.SSL.TCP/UDP/HTTP/FTP/MQTT |
User Configuration | AT + Instruction set, cloud server, android/iOSapp |
OS |
FreeRTOS |
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