Read data from terminal and save it | Waspmote

carlosglez · **Joined:** Thu May 23, 2019 12:21 pm **Posts:** 12

Hello,

I am trying to save data that I send from a Terminal program to Waspmote. I want to send a 2 bytes and save them in waspmote in a uint16_t variable. The problem is that I can't get what I want. I am using the following code:

Code:

    time = millis();
    while(millis()-time < 10000)
    {
        if (USB.available() > 0)
        {
            val = USB.read();
            USB.print(val,BYTE);
        }

        // Condition to avoid an overflow (DO NOT REMOVE)
        if (millis() < time)
        {
            time = millis();   
        }
    }

Note: val is a "uint16_t" variable.

I mean, I understand that if I send any number between 0 and 65536 it could be save without problem in a "uint16_t" variable, isn't it?

Thank you!

libelium-dev · **Joined:** Mon Sep 28, 2009 12:06 pm **Posts:** 11366

Hi,

That code is correct, which error exactly do you have?

Also please take a look into the RTC_7_set_waspmote_date example that manages the data introduced through the serial monitor.
http://www.libelium.com/development/was ... mote-date/

Regards

carlosglez · **Joined:** Thu May 23, 2019 12:21 pm **Posts:** 12

libelium-dev wrote:

Hi,

That code is correct, which error exactly do you have?

Also please take a look into the RTC_7_set_waspmote_date example that manages the data introduced through the serial monitor.
http://www.libelium.com/development/was ... mote-date/

Regards

The problem is that I enter for instance "4567", after that I divide this value into two uint8_t variables like this:

Code:

val0 = val & 0xff;
val1 = (val >> 8);

After doing that I send it in this way:

Code:

uint8_t trama[]={SWID1,SWID0};
error = LoRaWAN.sendConfirmed(PORT,trama,2);

But when I try to get again the "4567" value I don't get that, I get another different value without sense

libelium-dev · **Joined:** Mon Sep 28, 2009 12:06 pm **Posts:** 11366

Hi,

Where are you trying to get again the value? In the LoRaWAN back-end? Which value do you get?

Could you please share with us the full code you are using?

Regards.

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Read data from terminal and save it | Waspmote