Ebyte E32 Series User Manual

Also see for E32(915T30S): User manual User manual User manual

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Ebyte E32 Series User Manual Manual pdf 11 page image

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 106 Operating modeThere are four operating modes, which are set by M1 and M0, the details are as follows:Mode（0-3） M0 M1 Mode introduction Remark0 Normal 0 1 UART and wireless channel are open, transparenttransmission is onThe receiver must work in mode0 or mode 11Wake up 1 0 UART and wireless channel are open, the onlydifference with mode 0 is that before transmittingdata, increasing the wake up code automatically, sothat it can awake the receiver under mode 3.The receiver could be 0,1 or 22 Powersaving0 1 UART close, wireless is under air-awaken mode, afterreceiving data, UART open and send data.transmitter must be mode 1,unable to transmit in this mode.3Sleep 1 1 sleep mode, receiving parameter setting command isavailable.more details on parameterspecification.6.1 Mode switch The user can decide the operating mode by the co mb ination of M1 and M0. The two GPIO of MCU can be used toswitch mode. After modify ing M1 or M0, it will start to work in new mo de 1ms later if the module is free. If thereare any serial data that are yet to finish wireless transmitting, it will start to work in new mode after the UARTtransmitting fin ished. After the module receives the wireless data & t ransmits the data through serial port, it willstart to work in new mode after the transmitting finished. Therefore, the mode -switch is only valid when AUXoutputs 1, otherwise it will delay. For example, in mode 0 or mode 1, if the user inputs massive data consecutively and switch es operating mode at thesame time, the mode-switch operation is invalid. New mode checking can only be started after all the user’s dataprocess completed. It is recommended to check AUX p in out status and wait 2ms after A UX outputs high levelbefore switching the mode. If the module switches from other modes to stand-by mode, it will wo rk in stand-by mode only after all theremained data process completed. The feature can be used to save power consumption. For examp le, when thetransmitter wo rks in mode 0, after the external M CU transmits data “12345”, it can switch to sleep modeimmed iately without waiting the rising edge of the AUX pin, also the user’s main M CU will go dormancyimmed iately. Then the module will transmit all the data through wireless tran smission & go dormancy 1ms laterautomatically, which reduces MCU working time & save power. Likewise, this feature can be used in any mode-switch. The module will start to work in new mode within 1ms aftercomplet ing present mode task, which enables the user to omit the procedure of AUX inquiry and switch modeswiftly. For examp le, when switching fro m transmitting mode to receiving mode, the user MCU can go dormancybefore mode-switch, using external interrupt function to get AUX change so that the mode -switch can be realized. This operation is very flexib le and efficient. It is totally designed on the basis of the user MCU ’s convenience, at thesame time the work load and power consumption of the whole system have been reduced and the efficiency ofwhole system is largely improved.