form_trig_lvl.php 577 Bytes
<!DOCTYPE html>
<html>
	<?php
		$val_c1trlv = floatval(substr($c1trlv,8,-2))/$vdiv1;
	?>
	<form method='post' action='main.php' oninput='c1_triglv.value=c1_trlv.value'>
		<label for="c1_trlv" class="form-range">Trigger Level CH1</label>
		<input type="range" id="c1_trlv" name="c1_trlv" class="form-range" min="<?php echo (-4)*$vdiv1; ?>" max="<?php echo 4*$vdiv1; ?>" step="0.1" value="<?php echo $val_c1trlv*$vdiv1; ?>" onchange="this.form.submit();">
		<br/>
		Trigger level : <output for="out" name="c1_triglv"><?php echo $val_c1trlv*$vdiv1; ?></output> V
	</form>
</html>