ESP-M3 Mini

 https://www.aliexpress.us/item/2251832658774277.html

Long-range Ultra-low Mini Ultra-Small ESP-M3 From ESP8285 Serial Wireless WiFi Transmission Module Fully Compatible With ESP8266

ESP8285 = ESP8266 + 1M Flash, so that it can withstand high temperatures up to 125 degrees Celsius! And the original ESP8266 source code program can be used to transplant.

ESP-M3 module core processor using cost-effective chip ESP8285. The chip integrates the enhanced version of the Tensilica's L106 Diamond 32-bit core processor with on-chip SRAM in a smaller package. ESP8285 has a complete Wi-Fi network function, both can be used independently, can also be used as a slave from other host MCU running. When the ESP8285 hosting application, can be started directly from the external Flash. Built-in cache memory facilitates system performance and optimizes storage systems. In addition, ESP8285 only through the SPI / SDIO interface or I2C / UART port can be used as a Wi-Fi adapter, applied to any microcontroller-based design.

Features:

1) the volume is ultra-small;

2) serial to WiFi;

3) wireless transmission;

4) long-range ultra-low power consumption;

5) high temperature, up to 125 °

6) fully compatible with ESP8266, the source can be used to transplant.

SOC characteristics

Built-in Tensilica L106 ultra-low power 32-bit microprocessor, clocked at 80MHz and 160MHz support RTOS

Built-in TCP / IP protocol stack

Built-in 1-channel 10-bit high-precision ADC

Peripheral Interface HSPI, UART, I2C, I2S, IR Remote Control, PWM, GPIO

The deep sleep hold current is 10uA and the shutdown current is less than 5uA

Wake up within 2 ms, connect and pass the packet

Standby power consumption less than 1.0mW (DTIM3)

Built-in 1M bytes of SPI Flash

Wi-Fi features

Supports 802.11 b / g / n / e / i

Support Station, SoftAP, SoftAP + STA mode

Support for Wi-Fi Direct (P2P)

Supports CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC hardware acceleration

P2P discovery, P2P GO mode / GC mode and P2P power management

WPA / PA2 PSK and WPS

802.11 i security features: pre-authentication and TSN

Hold 802.11n (2.4 GHz)

802.1h / RFC1042 frame encapsulation

Seamless roaming support

Support AT remote upgrade and cloud OTA upgrade

Support for Smart Config features (including Android and iOS devices)

Module peripherals

2xUART

1xADC

1xEn

1x wakeup pin

1xHSPI

1xI2C

1xI2S

Up to 10xGPIOs

Operating temperature range: -40 ° -125 °

Application scenario

● Household appliances

● Home automation

● Smart socket, smart light

● Mesh network

● Baby monitor

● IP camera

● sensor network

● can wear electronic products

● Security ID tag

● Wireless location awareness

● Wireless positioning system beacon

● Industrial wireless control

Package:

1*Mini Ultra-small size ESP-M3 from ESP8285 Serial Wireless WiFi Transmission Module