1. OVERVIEW
Categories
Items
Specifications
Hardware
Module interface
SD card, UART, SPI, SDIO, I2C, LED PWM, Motor
PWM, I2S, IR
GPIO, capacitive touch sensor, ADC, DAC, LNA pre-
amplifier
On-chip sensor
Hall sensor, temperature sensor
On-board clock
40 MHz crystal
Operating voltage/Power supply 2.7
~
3.6V
Operating current
Average: 80 mA
Minimum current delivered by
power supply
500 mA
Operating temperature range
-40°C
~
+85°C
Ambient temperature range
Normal temperature
Package size
18±0.2 mm x 19.2±0.2 mm x 3.2±0.15 mm
Software
Wi-Fi mode
Station/SoftAP/Station/P2P
Wi-Fi Security
WPA/WPA2/WPA2-Enterprise/WPS
Encryption
AES/RSA/ECC/SHA
Firmware upgrade
UART Download / OTA (download and write firmware
via network or host)
Software development
Supports Cloud Server Development / SDK for cus-
tom firmware development
Network protocols
IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
User configuration
AT instruction set, cloud server, Android/iOS app
