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)
