SPECIFICATIONS

Brand Name: NONE

Choice: yes

Condition: New

Dissipation Power: n/a

High-concerned chemical: none

Operating Temperature: n/a

Origin: Mainland China

Supply Voltage: n/a

Type: Voltage Regulator

is_customized: Yes

Product Introduction

The main body of the module consists of ESP32-WROVER-B and SIM800L modules. The TYPE-C interface is extended from the periphery using the USB-to-serial port chip CP210X. It can be directly connected to a computer with a USB cable for debugging. The data transmission is fast and stable. The ESP32-WROVER-B is a universal WI-FI+BT+BLE MCU module, integrating the ESP32-D0WD chip, PCB on-board antenna, and combining Bluetooth and Wi-Fi. SIM800L is a 4-band GSM/GPRS module with operating frequencies of 850/900/1800/1900MHZ, capable of transmitting low-power voice, SMS and data information. The most prominent feature of this module is that it integrates the ESP32-WROVER-B and SIM800L modules, combines the functions of the two modules, and is equipped with a lithium battery charging and discharging circuit. It can supply power to the battery and charge the battery, and has overcharge and overdischarge protection.

Product parameters

Power supply voltage: DC 3.6V to 5V (5V input via Type-C port)

The on-board lithium battery interface is integrated with the lithium battery charging and discharging circuit

The module can work while charging the battery

The charging current is 500MA

Supports WIFI and Bluetooth transmission

The flip cover SIM card slot design enables the use of 2G/3G/4G NANO SIM cards from China Mobile or China Unicom

Support the transmission of voice, SMS and data information

Two on-board audio ports: including a microphone input and an audio output port

The board is equipped with a blue LED IO13 pin indicator light