| Hardware Specifications |
| Chipset |
ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor |
| FLASH |
QSPI flash 16MB (option 4MB) |
| SRAM |
520 kB SRAM |
| Button |
Reset |
| 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 67MA |
| Sleep current |
About 350uA |
| Working temperature range |
-40℃ ~ +85℃ |
| Size&Weight |
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（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 |
| OS |
FreeRTOS |
