SZDOIT 1 Lot/5 Pieces ESP-M4 2.4Ghz Wireless WiFi Module ESP8285 Serial Port Transmission Control Module Compatible ESP8266

Product description:

• The core processor of the ESP-M4 module uses the cost-effective chip ESP8285. The chip integrates an enhanced version of Tensilica's L106 Diamond Series 32-bit core processor in a smaller package with on-chip SRAM. The ESP8285 has a full Wi-Fi network function, which can be used independently or as a slave to other host MCUs. When the ESP8285 hosts an application, it can be launched directly from external Flash. The built-in cache helps improve system performance and optimizes the storage system. In addition, the ESP8285 can be used as a Wi-Fi adapter via the SPI/SDIO interface or I2C/UART port for any microcontroller-based design.
• The ESP-M4 module supports the standard IEEE 802.11 b/g/n/e/i protocol and the complete TCP/IP protocol stack. Users can use this module to add networking capabilities to existing devices or to build separate network controllers.
• The ESP-M4 module offers maximum practicality at the lowest cost, providing unlimited possibilities for Wi-Fi functionality to be embedded in other systems.

Main technical parameters of the module:

WI-FI parameters:

• Frequency range: 2.4G~2.5G (2400M~2483.5M)
• Transmit power: 802.11b: +20 dBm, 802.11g: +17 dBm, 802.11n: +14 dBm
• Receive sensitivity: 802.11b: -91 dbm (11Mbps), 802.11g: -75 dbm (54Mbps), 802.11n: -72 dbm (MCS7)
• Antenna: PCB onboard antenna

Hardware parameters:

• CPU: Tensilica L106 32 bit microcontroller
• Peripherals: UART/SDIO/SPI/I2C/I2S/IR remote control; GPIO/ADC/PWM/SPI/I2C/I2S
• Working voltage: 2.5V ~ 3.6V
• Working current: average current: 80 mA
• Working temperature: -40 ° C ~ +125 ° C
• Ambient temperature range: -40°C ~ +125°C
• Package size: 16mm x 24mm x 3mm

Software parameters:

• Wi-Fi mode: Station/SoftAP/SoftAP+Station
• Security mechanism: WPA/WPA2
• Encryption type: WEP/TKIP/AES
• Upgrade firmware: UART Download/OTA (via network)
• Software development: Non-RTOS/RTOS/Arduino IDE, etc.
• Network protocol: IPv4, TCP/UDP/HTTP/FTP/MQTT
• User Configuration: AT+ Instruction Set / Cloud Server / Android / iOS APP

Note:

• The module supply voltage is 3.3V DC and the current is 500mA or more;
• Wi-Fi module IO maximum output current is 12mA;
• Wi-Fi module NRST pin is active low; EN enable pin is active high;
• The Wi-Fi module enters the upgrade mode: GPIO0 is at a low level, then the module is reset and powered on; the Wi-Fi module enters the normal working mode: GPIO0 is at a high level, and the module is reset and powered.
• The RXD of the Wi-Fi module is connected to the TXD of the external MCU, and the TXD of the Wi-Fi module is connected to the RXD of the external MCU;
• More documents can be downloaded at wiki.doit.am.

Shipping list:

• 5 pieces wifi modules (1 lot)