Timeline for Laser emitter + receiver for Arduino (Arduino to Arduino communication)
Current License: CC BY-SA 4.0
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| Jun 5, 2018 at 22:46 | history | edited | dda | CC BY-SA 4.0 |
edited title
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| Sep 8, 2017 at 9:48 | history | edited | per1234 | CC BY-SA 3.0 |
Fix typos
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| Apr 17, 2017 at 3:30 | history | edited | dda | CC BY-SA 3.0 |
added 4 characters in body
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| Apr 16, 2017 at 22:01 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 18, 2017 at 9:18 | comment | added | dandavis | hook the LED to the oscilloscope (w/o resistor), and shine a laser into the led. you should get up to the forward voltage an a few microamps of current. "waterclear" LEDs work a lot better than diffused.many in series adds voltage; i used 3 flat ones in series as an opto-isolated mosfet driver (K-d, A-g, 10Mohm s-g). | |
| Mar 18, 2017 at 5:22 | comment | added | Carl | @dandavis I tried feeding a square wave to an IR LED. I hooked up a photodiode (and resistor) to an oscilloscope. The rise times became too slow above 2kHz. | |
| Mar 17, 2017 at 22:33 | comment | added | SDsolar | This particular receiver module is advertised as being "non-modulated" which means it is just a digital on/off indicator. I can't find info on the latency in the circuit before it determines whether or not it can find the laser signal, so presume the speed will be very very slow. You would be better off using just a LDR or something else other than this module. | |
| Mar 17, 2017 at 18:35 | comment | added | James Waldby - jwpat7 | Speed is likely to be limited by use of software serial instead of the laser link. You might consider using Mega2560's (which have 4 UARTs) instead of Uno's | |
| Mar 17, 2017 at 18:14 | history | edited | James Waldby - jwpat7 | CC BY-SA 3.0 |
fix urls
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| Mar 17, 2017 at 16:47 | comment | added | dandavis | you can use a red or ir led to receive, or a phototransistor, all of which should give dozens of KHz. | |
| Mar 17, 2017 at 14:44 | answer | added | Mikael Patel | timeline score: 0 | |
| Mar 17, 2017 at 13:52 | review | First posts | |||
| Mar 17, 2017 at 16:01 | |||||
| Mar 17, 2017 at 13:40 | history | asked | Carl | CC BY-SA 3.0 |