Características:
– Chipset: ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
– FLASH: QSPI flash 4MB / PSRAM 8MB
– SRAM : 520 kB SRAM
– Button: Reset
– USB to TTL: CP2104
– Modular interface: UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC、DACLNA pre-amplifier
– On-board clock: 40MHz crystal oscillator
– Working voltage: 2.7V-3.6V
– Working current: About 70mA
– Sleep current: About 300uA
– SIM card: Only supports Nano SIM card
– Working temperature range: -40℃ ~ +85℃
– Size: 78.83 x 28.92 x 8.06 mm
– Weight: 11.77g
– 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(esp32 chip)
– 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
– 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