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Microcontroller Kit Support Instructions

Connecting to the Computer

Software Installation and Operating Instructions (PDF 1.3 mb) Start here if you are having trouble getting your microcontroller to connect to your computer through the infrared software interface.

If you are still having trouble connecting to your computer:
With some computers, problems may arise with the data communication between the microcontroller and computer via the infrared interface. If everything is working correctly, you will see a constant voltage displayed at the bottom left corner of the Direct window in the Microcontroller program when connected to the Hardware test (#1) assembly running the HardwareTest1.k program (this program comes pre-installed on your Microcontroller).

If the voltage displayed is not constant — for example, it spikes and then drops to zero again and again — then there are problems with the interface. This will affect the transmission of programs or measurement data.

Here is the solution:

Download and copy the file “kosmos.ini” into the directory: C:\Windows\

This is a configuration file that contains data that will help the Microcontroller program function properly. In the file, there is a Timeout Setting that tells the program how many milliseconds to wait for an answer from the Microcontroller:
[Time]
;Values between 20 and 500
MAXTimeout = 300

The entry MAXTimeout = 300 can be also changed by entering a shorter time (e.g. MAXTimeout = 100) or a longer one (e.g. MAXTimeout = 500). 300 should be an adequate setting for every computer.

Turntable Shaft Mount Issue

Some users have reported that the plastic shaft mount for the turntable does not fit tightly enough onto the motor shaft, and thus spins around freely.

This can be fixed easily by wrapping a small piece of adhesive tape around the motor shaft before sliding the shaft mount onto it. This will increase the motor shaft’s diameter slightly and create a tighter fit. Also, since the motor is only used with the turntable attached, you can glue the shaft mount to the motor shaft by putting some glue onto the shaft before sliding the shaft mount onto it. If you would like a replacement shaft mount, please call Thames and Kosmos Customer Service at 800-587-2872.

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