Espressif announced ESP8285 WiFi SoC was entering production last March 2020. The new processor is based on ESP8266, but the company added 1MB built-in flash to make the solution smaller, and more suitable to wearables such as smartwatches and activity trackers.
What is ESP8285
ESP8285 = ESP8266 +1M Flash application temperature up to 125℃! First and foremost the code programmed in ESP8266 could be used for ESP8295 intact. ESP-M2 module core processor is the high-performance chip ESP8285, which is equal to ESP8266 chip plus 1M Flash. The chip ESP825 is encapsulated an advanced Tensilica’s L106 32-bit CPU, together with SRAM. ESP8285 has the full and complete WiFi function, which can be used independently and also used as a slave with other Hoster MCU, which can start directly from the out-built Flash. In addition, the built-in high-speed buffer is a 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.
Features:
- 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.
Specifications:
- SOC characteristics Built-in Tensilica L106 ultra-low power 32-bit CPU, main frequency supports 80MHz and160MHz and RTOS
- Built-in TCP/IP protocol
- Built-in one-channel 10-bit high precision ADC
- Outboard interface: HSPI, UART, I2C, I2S, IR Remote Control, PWM, GPIO
- Deep sleep current is 10uA, the cut-off current is smaller than 5uA; Wake, connect and transmission data package within 2ms
- The consumer power is smaller 1.0Mw (DTIM3) when at standby status
- Built-in 1M byte for SPI Flash. WiFi characteristics Support 802.11 b/g/n/e/I
- Support Station, Soft AP, Soft AP+STA mode
- Support WiFi Direct (P2P)
- Support CCMP (CBC-MAC, computation mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC etc., for hardware acceleration.
- P2P finding, P2P GO mode/ GC mode and P2P power manage WPA/PA2PSK and WPS
- 802.11securitycertification: pre-certification and TSN Support 802.11n (2.4GHz)
- 802.1h/RFC1042 frame encapsulation
- Support seamless roaming
- Support AT remote update and cloud update (OTA)
- Support Smart Config function (including Android and Ios device).
Module interface:
- 2 * UART
- 1 * ADC
- 1 * En; 1*wakeup pin
- 1 * HSPI
- 1 * I2C
- 1 * I2S More than 10*GPIOs Working temperature: -40℃-+125℃
- Module size: 12.3 * 15mm Applications: Electrical appliance
- Smart power plug, smart light
- Infant monitor
- Sensor networks
- Security ID label
- Wireless location beacon
- Home automation
- Mesh networks
- IP video camera
- Wearable electronics
- Wireless location recognition
- Industrial wireless control
