Hardware Specifications |
Chipset |
ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor |
FLASH |
QSPI flash 4MB /16MB |
SRAM |
520 kB SRAM |
Button |
Reset |
Modular interface |
UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、ADC、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) |
Screen resolution |
135px*240px |
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 BLE 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 |
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