Hardware Specifications |
|
| Chipset | ESPRESSIF-ESP32-WROVER-B 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor |
| FLASH | QSPI 4MB Flash / 8MB PSRAM |
| SRAM | 520 kB SRAM |
| KEY | reset,BOOT |
| switch | BAT switch |
| Power indicator lamp | red |
| USB to TTL | CP2104 |
| modular interface | SD card、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 | 2.3V-3.6V |
| working current | about 40mA |
| sleep current | 1mA |
| working temperature range | -40℃ ~ +85℃ |
| size | 91.10mm*32.75mm*19.90mm |
| Power Supply Specifications |
|
| Power Supply | USB 5V/1A |
| charging current | 1000mA |
| battery | 3.7V lithium battery |
| Wi-Fi | Description |
| Standard | FCC/CE/TELEC/KCC/SRRC/NCC(esp32 chip) |
| protocol | 802.11 b/g/n/e/i (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 -98dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH |
| audio frequency | CVSD&SBC audio frequency |