Description

Hardware Specifications
Chipset ESP32-WROVER-B
SIM Type SIM800C
FLASH 4MB
PSRAM 8MB
SRAM 520 kB SRAM
Button Power Switch,Reset
External port SIM Antenna,MIC,Speaker
USB to TTL CP2104
On-board clock 40MHz crystal oscillator
Working voltage 2.7V-3.6V
SIM card only supports Nano SIM card
Working temperature range -40℃ ~ +85℃
Size&Weight 74.78*24.75*10.6mm(13.2g)