Seeed linkit one iot dev board gsm gprs wi fi bluetooth gps seeed studio 102030002 p the linkit one iot development board from seeed studio has a host of wireless interfaces including wi fi bluetooth gsm and gprs based around a 32 bit arm7 ej s running at 260mhz this small board packs in a lot of functionality the list includes 16mbytes of flash 4mbytes of ram 16 digital io 4 analog io 2 pwm plus i2c spi and a serial uart for expansion the board supports arduino uno shields