MP4-Temp_Logger

When 3 is pressed logging mode is aborted and data

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Unformatted text preview: ctivated. When ‘3’ is pressed, logging mode is aborted and data transfer mode is activated. When ‘4’ is pressed, the use should be able to set the time. The green LED should light up when in display mode. The yellow LED should otherwise light up when in data transfer mode. No LED should light up when setting the time. h) When in display mode, the user can browse through the data stored by pressing buttons ‘1’, ‘4’, ‘6’ and ‘8’. When buttons ‘1’ and ‘4’ are pressed, the previous set of data is displayed. When buttons ‘6’ and ‘8’ are pressed, the next set of data is displayed. Note that the temperature should be displayed with the time when the temperature was logged. i) Pressing button A can interrupt display mode. Again, a message is displayed asking for a user choice as in (g). j) When in data transfer mode, the user has to connect the node to the serial port/usb port of the computer using a cable. Communication is then negotiated when button B is pressed and data is transferred to the...
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