having problem reading data from arduino using instrument toolbox

2018 10 11
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更新时间：2019 5 27
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Hey there well i'm trying to send a constant like 5 to arduino using simulink " to instrument " block and in arduino i have generated a model using "serial recieve" and a "gain" plus a "serial transmit" block and in my laptop i have the "query instrument" block but the thing i get is very weird .

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Thomas Jacob
Thomas Jacob 2019-5-25

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I hope that you might have figured out by now. In case you haven't, try this:
The problem here is due to the fact that Arduino is sending the ASCII code and Query Instument is reading the binary values. You can change this at the Query block. Double click to open Block Parameters. Under the Query tab, set the data format as ASCII. You may also the set the ASCII format string as '%d', '%f', or '%s' based on the type of data you are sending.

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ErfanH
ErfanH 2019-5-26
Yeah i just figured that out but there is another problem with this block. The ehing is it is limited to 4 COM ports only. Using serial recieve and send may resolve that issue but i still have problem sending and recieving data using those blocks. Have you figured out how would that be possible too ?
Walter Roberson
Walter Roberson 2019-5-26
To confirm, you are trying to send to more than 4 arduino simultaneously in one model ?
ErfanH
ErfanH 2019-5-27
Yes as a part of HIL simulation each arduino is going to represent a sensor

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