Examples 2


	Intellecta Technologies Pty Ltd


	for PICAXE education, Roland CAM, Techsoft CAD, Intellecta control, Atmel, Arm and Microchip education

Examples of Intellecta applications

These examples go further into the Intellecta icon applications.

Counting switch presses

In this example, the switch icon is linked to a counter input. The properties of the counter icon are set so that is counts the inputs.

Note that the switch to counter link is black but the counter to viewer icon is red. The red defines an analog or changing value.

Turning on a light at a count

This example can simulate the operation of a turnstile such that an indicator comes on when a certain number of people have passed through a gate.

The counter output is fed into a comparator icon that is set to give an ON value when the value is equal to an internal defined value.

The only problem is that the light comes on at the 10th switch press but a reset is needed.

View a flash movie on the operation of the Comparator icon.

Using a stopwatch

There are many examples where it is important to know how long a switch has been pressed. For example, an accidental press on a mobile phone button may be classed as an error. A security code switch may be pressed for at least a second for a valid entry.

This example shows how to measure the length of a switch press with the Stopwatch sensor icon. This is placed on the workbook via the Place>Sensors item on the tool bar.

The solution is simple with the switch and stop watch sensor. Note that the property of the stop watch must be set to “measure the duration of a pulse”.




		Using the data logger In this example, we want to display the time that the switch is pressed on a graph. The idea here is that we want to see how close the user can estimate or guess one second. The Set-Point icon is used to set up a constant 1 second line on the graph. You can see that the initial estimates are wrong ( the subject was not allowed to see the actual time) and gradually the estimates become closer to 1 second. The data can be plotted in a number of ways because the data logger icon automatically places the data on the clip-board so it can be imported into Excel and other packages.

Motor Speed Control

The Intellecta interfaces have speed control on the motors. The motor icon has an upper stub for direction control and the lower stub is used for speed control. Here a value between 0 and 100 will give control of the motor speed.

This example shows a two speed control of the motor.

The switch gives out a value of 0 and 1 and this must be converted to a value of 50 and 100 for the two speed control. This is the job of the amplifier icon. It has an internal property where the input can be multiplied by a constant value and offset by a constant

Here is the final Intellecta strategy. The switch output is converted by the amplifier to give a two step speed control.

The set point icon is connected to the top stub of the motor icon and sets the direction of the motor. In this case, the motor runs forward or ON.


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