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.
Classification
Item
Parameter
Wi-Fi
Frequency range
2.4G~2.5G(2400M~2483.5M)
Transmit power
802.11b:+20 dBm
802.11g:+17 dBm
802.11n:+14 dBm
Receiving sensitivity
802.11b:-91 dbm (11Mbps)
802.11g:-75 dbm (54Mbps)
802.11n:-72 dbm (MCS7)
Antenna
PCB onboard antenna
Hardware
CPU
Tensilica L106 32 bit microcontroller
Peripheral
UART/SDIO/SPI/I2C/I2S/IR remote control
GPIO/ADC/PWM/SPI/I2C/I2S
Operating Voltage
2.5V ~ 3.6V
Working current
Average current:80 mA
Operating temperature
-40°C ~ 125°C
Ambient temperature range
-40°C ~ 125°C
Package size
16mm x 24mm x 3mm
Software
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/ IDE, etc.
Network protocol
IPv4, TCP/UDP/HTTP/FTP/MQTT
User configuration
AT+ instruction set / cloud server / Android / iOS APP
Package includes
5 x AT Fireware Module
Additional information
| Weight | 0.01 kg |
|---|
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