Difference between revisions of "LUMI"
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Mike Gao's 250b Wiki | Mike Gao's 250b Wiki | ||
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| − | Developed with Craig Hanson, the LUMI is a 32 pressure sensitive LED button matrix combined with a touchscreen, 8 knobs, crossfader and infrared sensor. | + | Developed with Craig Hanson, the LUMI is a 32 pressure sensitive LED button matrix combined with a touchscreen, 8 knobs, crossfader and infrared sensor.<br> |
| − | This project was developed in 250a, and continued in 250b. | + | This project was developed in 250a, and continued in 250b.<br> |
For 250b, a new chassis was constructed and knobs, infrared and crossfader was also added. Special thanks to Chris Weil for the help on mechanical engineering. | For 250b, a new chassis was constructed and knobs, infrared and crossfader was also added. Special thanks to Chris Weil for the help on mechanical engineering. | ||
| + | <br> | ||
| + | New software features include:<br> | ||
| + | - Auto chop<br> | ||
| + | - Chop to Step sequencer<br> | ||
| + | - Auto-assign chops to buttons<br> | ||
| − | + | Features I am still working on over spring break:<br> | |
| − | + | - KNN / MFCC based beatbox trigger of cops<br> | |
| − | + | - groove features<br> | |
| − | + | - auto chop by MIR<br> | |
| − | + | ||
| − | Features I am still working on over spring break: | + | |
| − | - KNN / MFCC based beatbox trigger of cops | + | |
| − | - groove features | + | |
| − | - auto chop by MIR | + | |
| − | + | ||
| − | + | ||
| + | Difficulties faced/Lesson learned:<br> | ||
| + | <br> | ||
When utilizing an infrared sensor in a switching circuit, care must be taken in the power supply of the infrared, as there is a 20ms or so latency between when the infrared sensor is powered, and when it will give useful output. | When utilizing an infrared sensor in a switching circuit, care must be taken in the power supply of the infrared, as there is a 20ms or so latency between when the infrared sensor is powered, and when it will give useful output. | ||
The way we got around this was using a transistor circuit, and permanently connecting the infrared's own power supply. The switching is then handled by the transistor rather than the sensor. | The way we got around this was using a transistor circuit, and permanently connecting the infrared's own power supply. The switching is then handled by the transistor rather than the sensor. | ||
Latest revision as of 17:09, 24 March 2009
Mike Gao's 250b Wiki
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Developed with Craig Hanson, the LUMI is a 32 pressure sensitive LED button matrix combined with a touchscreen, 8 knobs, crossfader and infrared sensor.
This project was developed in 250a, and continued in 250b.
For 250b, a new chassis was constructed and knobs, infrared and crossfader was also added. Special thanks to Chris Weil for the help on mechanical engineering.
New software features include:
- Auto chop
- Chop to Step sequencer
- Auto-assign chops to buttons
Features I am still working on over spring break:
- KNN / MFCC based beatbox trigger of cops
- groove features
- auto chop by MIR
Difficulties faced/Lesson learned:
When utilizing an infrared sensor in a switching circuit, care must be taken in the power supply of the infrared, as there is a 20ms or so latency between when the infrared sensor is powered, and when it will give useful output.
The way we got around this was using a transistor circuit, and permanently connecting the infrared's own power supply. The switching is then handled by the transistor rather than the sensor.
