Difference between revisions of "Team:NCKU Tainan/wi fi"

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Revision as of 08:45, 4 October 2018

Wi-fi Sensor

About this section, we are showing how to use the Wi-Fi sensor in arduino.


Motivation


In order to send data to firebase, we use Wi-fi sensor to upload it.







Experiments


  • Experiment 1: Temperature measuring

    1. Purpose

      • We need to send data from one sensor to another sensor. We would like to send the Arduino sensor data to Wi-fi sensor, and send the Wi-fi time data to Arduino.

    2. Method

      • We use Arduino TX to send sensor data to Wi-fi RX, then upload data to database. And we use Wi-fi TX to send time data to Arduino RX, then print it on LCD.

    3. Precaution

      • Because we only can send data by byte, so we need to separate the data into one by one. For instance, 25 may be send by 2 and 5. Then merge it on another sensor. For instance, 2 and 5 may merge by 2*10+5=25.

    4. Result

      • We send an array which is 25、26、27 from Arduino to Wi-fi sensor. And we let the Wi-fi sensor Serial to print the data read by byte. Then we merge the data to what it should be originally.


  • Materials used

    1. Arduino UNO

    2. Wi-fi sensor (NodeMcu)
    3. Arduino Code




Wiring