Could use GPIO 9 way, AD, PWM, TIMER, 2 way UART, SPI, I2C, Watchdog
RAM Size: in Station mode, after connect the router, about 35k
ROM Size: no ROM, user programs in Spi Flash
High-speed CPU frequency (default 80 MHZ, up to 160 m)
Can be used as a serial port WIFI
Color is shown as pictures PLS NOTE that due to lighting effects, monitor's brightness/ contrass settings ect, there could be some slight differences in the color tone of the pictures and the actual item!