Technical University of Iasi - Fac. Automation and Computers
Design with microprocessors
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Thursday, 31 Jan, 119 Time 20:13
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Experiment No. 9
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FRDM ARM Cortex M0 - light sensor interface
The lab work follows the use of the analog / numeric conversion module for the acquisition of information from optical sensors. AnalogIn class C ++ classes are also explored, as well as sensor interfacing capabilities to enable moving a mobile system on a required route.
FRDM platform, ByteDisplay extension, photoresist extension, laser pointer, browser and connection at www.mbed.org, oscilloscope, multimeter.
Reading sensors on ByteDisplay
L9.5 Experiment Run / Tracking Mode:
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- Analyze the extension schema for the FRDM platform and verify the correct connections;
- Identify pins for which instances of AnalogIn classes can be made;
- Analyze the details of how to deploy the AD mode in ARM cortex microcontroller structure M0 - Freescale Kl25
- Using the Meter determine photorealistic values for ambient light and laser beam exposure;
- Run the prototype program;
- Solve the proposed problems.
1. Modify the prototype program so that byteDisplay is displayed;
2. Make a program that will turn the LEDs on byte display based on the position of a finger that moves over the photoresist module;
3. Make a program that will turn on the LED corresponding to light-enhancing photoresistance with a laser beam;
4. At the PWM1 exit a pseudo-ceramic membrane is connected. Make a program that will generate 5 music notes by touching F1-F5 photoresist;
5. Correct the prototype program by setting unused inputs of the A / D module as digital outputs to avoid crosstalk.
L9.7 The experiment may be extended to:
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Establishment of tracking systems for tracking robots;
Developing Internet of Things for Future Internet;
Making light activated systems;
Making actuators for lighting control according to natural light;
Making Tuch-like interfaces without touch;
L9.8 Collateral information:
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© 2019 Fl. Pantilimonescu - Fac. Automation and Computers Iasi
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