sidebar.jinja

<div class="control-group">
    <div class="row-fluid">
        <label class="control-label">Servo Control</label>
            # <button class="btn" type="button" servoCmd="1" data-bind="value: servoCmd">Up</button>
            # <button class="btn" type="button" servoCmd="2" data-bind="value: servoCmd">Up</button>

            <input type="button" id="servoDir" value="<-" value="plusOne" data-bind="value: param, event: {input: cmdServo}">
            <input type="button" id="servoDir" value="->" value="minOne" data-bind="value: param, event: {input: cmdServo}">
        <datalist id="tickmarks">

        <span data-bind="text: (speed() * 100).toFixed(0) + '%'"></span>
    </div>
</div>