ESP 8285 M2 WiFi Module

Posted On July 12, 2019 at 6:26 am by / Comments Off on ESP 8285 M2 WiFi Module

ESP-M2 is encapsulated by the high performance chip ESP8285, which is equal to ESP8266 chip plus 1M Flash. The chip ESP825 is encapsulated a advanced Tensilica’s L106 32-bit CPU, together with SRAM. ESP825 has the full and complete WiFi fuction, which can used independently and alsoused as a slaver with other Hoster MCU, which can start directly from the out-built Flash. In addition, the built-in high-speed buffer is benefit for the system performance. Especially, ESP8285 can be used as a WiFi adapter by SPI/SDIO and/or I2C/UART interface, when it is applied to the other MCU design.


  • Ultra-small size
  • Support serial to WiFi
  • Wireless transparent transmission
  • Long distance transmission with ultra-low power
  • Support outboard antenna
  • Bearing high temperature to 125 ¿¿¿, compared to the 85¿¿¿ for ESP8266.

ESP8285=ESP8266+1M Flash, chip feature1) size is ultra-small2) serial to WiFi3) wireless transmission4) long-range ultra-low power consumption5) high temperature, up to 125 ¿¿¿6) fully compatible with ESP8266, the esp8266 source code can be used for esp8285

SOC Features:

  • 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 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)

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
  • Supports 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

  1. 2xUART
  2. 1xADC
  3. 1xEn
  4. 1x wakeup pin
  5. 1xHSPI
  6. 1xI2C
  7. 1xI2S
  8. Up to 11xGPIOs
  9. 4M bytes of SPI Flash
  10. Operating temperature range: -40 ¿¿¿ -85 ¿¿¿
  11. Module size: 12.3mm×20mm


  1. Power supply oltage is DC 3.3V
  2. IO max output current is 12mA
  3. NRST pin active low, EN enable pin active high RXD to MCU’s TXD, TXD to MCU’S
  4. RXD


  • Household appliances
  • Smart socket, intelligent light
  • Baby monitor
  • Sensor Networks
  • Security ID tag
  • Wireless positioning system beacon
  • Home automation
  • Mesh network
  • IP camera
  • Can wear electronic products
  • Wireless location awareness
  • Industrial Wireless Control