... code;Buttons, switches, timing, GSM / GPRS wireless communications and other typical applications;User-friendly ... deadline, cancel the deadline;ApplicationsWireless application: Highway GPRS advertising, community wireless LED display;Commercial applications: ... ),4*IO(HUB12)Communication modeRS232Wireless communicationSupport RF/GPRS/GSMTotal pixel32KExtend interfaceTest button ,temperature sensor , ...