Feature:
1. The module is the ESP- WROOM-32 development board, and the ESP- WROOM32 parameter characteristic is also the parameter characteristic of the module.
2. Low power dual core 32-bit CPU, which can be used as application processor;
3. Support UART / SPI / I2C / PWM / DAC / ADC and other interfaces;
4. Support openOCD debugging interface;
5. It supports multiple sleep modes, and the current reaches 6.5ua in deep sleep;
6. Embedded LwIP and FreeRTOS;
7. Support STA/AP/STA+AP mode;
8. Support Smart Config / Airkiss one key distribution network;
9. General at command, easy to use;
10. Support local serial port upgrade and remote upgrade (FOTA).

Specification:
SPIFlash: default 32Mbit
Supporting interfaces: UART, SPI, SDIO, I2C, PWM, I2S, IR, ADC, DAC
On chip sensors: Hall sensor, temperature sensor, capacitive touch sensor
IO port: 22pcs
Power consumption: 300mA 3.3V
Security: WPA / WPA2 / WPA2 Enterprise / WPS
Power supply range: 3V~3.6V(3.3V recommended), Can be directly powered by 5V USB.
Working temperature: - 20 ~ 85 ℃
Storage environment: - 40 ~ 90℃,