user52590: I'm new to Nextion display. I'm doing a model of oscilloscope with the display and an Arduino Uno. I used the waveform component. I went through the instruction set and found two instructions to send data to the waveform component. The instruction "add" is clear to me. Tried and got the output. But the instruction "addt" is not clear to me. I sent the instruction 
addt 1,0,30\xFF\xFF\xFF

I got something on the display which I'm not able to understand. Please someone explain what the instruction "addt" does....... I also came across the term "data pass through mode" under this instruction in the documentation. Please explain that too.....
Thanks in Advance.....

user4143: addt is the volume variant of add.
Instead of using something like:
add 1, 0, 19
add 1, 0, 39
add 1, 0, 85
add 1, 0, 98

you can group them all together with an addt:
addt 1, 0, 4
<5ms delay>
\x13\x27\x55\x62

The third parameter of the addt command is the number of values you want to send. Then you have to leave at least 5ms after sending the command so the display is ready to receive (it will actually send a "go" signal to you of \xFE\xFF\xFF\xFF.  You send the data as raw binary values (shown as C string escape sequences above), and after it has received the specified number it responds with an "ok" signal of \xFD\xFF\xFF\xFF.
The maximum number of values you can send in one batch is 128.

52590: <p>I'm new to Nextion display. I'm doing a model of oscilloscope with the display and an Arduino Uno. I used the waveform component. I went through the instruction set and found two instructions to send data to the waveform component. The instruction "add" is clear to me. Tried and got the output. But the instruction "addt" is not clear to me. I sent the instruction </p>

<pre><code>addt 1,0,30\xFF\xFF\xFF
</code></pre>

<p>I got something on the display which I'm not able to understand. Please someone explain what the instruction "addt" does....... I also came across the term "data pass through mode" under this instruction in the documentation. Please explain that too.....</p>

<p>Thanks in Advance.....</p>
 4143: <p><code>addt</code> is the <em>volume</em> variant of <code>add</code>.</p>

<p>Instead of using something like:</p>

<pre><code>add 1, 0, 19
add 1, 0, 39
add 1, 0, 85
add 1, 0, 98
</code></pre>

<p>you can group them all together with an <code>addt</code>:</p>

<pre><code>addt 1, 0, 4
&lt;5ms delay&gt;
\x13\x27\x55\x62
</code></pre>

<p>The third parameter of the <code>addt</code> command is the number of values you want to send. Then you have to leave at least 5ms after sending the command so the display is ready to receive (it will actually send a "go" signal to you of <code>\xFE\xFF\xFF\xFF</code>.  You send the data as raw binary values (shown as C string escape sequences above), and after it has received the specified number it responds with an "ok" signal of <code>\xFD\xFF\xFF\xFF</code>.</p>

<p>The maximum number of values you can send in one batch is 128.</p>
