User Manual

Version 1.0 - May 26, 2011

Calibration

Some receivers and radio setups have different center and endpoints than the factory

configuration shipped in a new Wasp. To match the Wasp to your actual RC range a

calibration sequence can be run. After calibration the new values are stored in the Wasp CPU

and are retained permanently.

Following is the calibration sequence:

1) Power on the Wasp either with the main battery or through the RC cable. The status

LED should be solid showing the Wasp is locked to the input signal. A motor does not

need to be connected. It is OK to power the Wasp through the RC cable with a

receiver battery and no main battery connected if desired.

2) Set the RC stick or signal source to the neutral position (center stick) with trim

centered as well.

3) Using a paperclip, tweezers or other conductive item, briefly touch the two Calibration

contacts shown in the above diagram. The status LED will begin to blink rapidly. The

motor outputs are deactivated for safety during calibration.

4) Move the stick to the extremes of travel slowly several times in each direction. The

Wasp records the range of RC signals to be used.

5) Center the stick again and touch the Calibration contacts again. This stores the

calibration values in the Wasp CPU. The values are retained and used from then on.

The motor outputs are activated as soon as the calibration values are stored.

6) Assuming the above were done correctly the motor LED should be off and change to

full brightness as the stick is moved to the limits. That’s it!

Note, it is possible to jitter when touching the contacts and inadvertently enter then

immediately exit calibration or to exit and then enter again by touching twice quickly. No

harm is done by this just repeat the steps above until a good calibration sequence is done.

If the radio doesn’t seem to be responding properly after calibration there is no harm in

repeating the sequence until the proper range is stored in the CPU.

3. Input / Output Connections

Power Connections

Motor Outputs: The Wasp circuit is two independent half-bridge circuits mounted on a single

PCB. The two motor outputs work together to form a full H-bridge for bi-directional drive of a

motor or other load. Each motor terminal is always connected electrically to either the battery

plus or battery negative through the MOSFET power chips.

An optional 3.5mm spacing screw terminal may be soldered into the power connection pads

for easy connect and disconnect of the motor/battery leads. For permanent attachment wires

should be soldered into those positions. We recommend clearly color coding the wires and if

possible using a polarized connector to avoid incorrect battery connections.

Warning: Connecting the battery to the motor leads will quickly damage the MOSFET chips

and perhaps destroy the unit. Take care to keep the battery and motor leads separate.