Ebyte E32-868T20D User Manual

Also see for E32-400T20S: User manual User manual User manual Manual User manual

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Ebyte E32-868T20D User Manual Manual pdf 11 page image

Chengdu Ebyte Electronic Technology Co,;Ltd E32-868T20D user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 104 When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will resetuser parameters, during which AUX outputs low level.6 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 UART and wireless channel are open, transparenttransmission is onThe receiver must work inmode 0 or mode 11 wake up 1 0 UART and wireless channel are open, the onlydifference with mode 0 is that before transmitting data,increasing the wake up code automatically, so that it canawake the receiver under mode 3.The receiver could be 0,1or 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 thismode.3 sleep 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 combination of M1 and M0. The two GPIO of MCU can be used toswitch mode. After modifying M1 or M0, it will start to work in new mode 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 finished. After the module receives the wireless data & transmits 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 switches 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 pin out status and wait 2ms after AUX outputs high levelbefore switching the mode. If the module switches from other modes to stand-by mode, it will work in stand-by mode only after all theremained data process completed. The feature can be used to save power consumption. For example, when thetransmitter works in mode 0, after the external MCU transmits data “12345”, it can switch to sleep modeimmediately without waiting the rising edge of the AUX pin, also the user’s main MCU will go dormancyimmediately. Then the module will transmit all the data through wireless transmission & 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 aftercompleting present mode task, which enables the user to omit the procedure of AUX inquiry and switch modeswiftly. For example, when switching from transmitting mode to receiving mode, the user MCU can go dormancy