| Hardware Specifications |
|
| Chipset |
ESPRESSIF-WROVER-B 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor |
| 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 touch sensor、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℃ |
| Size&weight |
40.27mm*31.07mm*8.13mm(6.42g) |
| Power Supply Specifications |
|
| Power Supply |
USB 5V/1A |
| Charging current |
500mA |
| Battery |
3.7V lithium battery |
| 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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