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--- laser_transceiver [2014/11/11 13:48]
cwh0009 [Materials List]
+++ laser_transceiver [2014/11/11 15:25]
cwh0009 [Overview]
@@ Line 1: / Line 1: @@
 ====== Overview ======
-The laser transceiver is a free space optical communication device that encodes audio on a laser beam using pulse width modulation (PWM). A single transmitter and receiver unit can be built for about $15-$20 in parts. We used to use this for a demonstration in ELEC 3030 (RF Systems Lab), but aligning the lasers took quite a bit of time to setup.
+{{:transmitter_1.jpg?direct&200 |}}The laser transceiver is a free space optical communication device that encodes audio on a laser beam using pulse width modulation (PWM). A single transmitter and receiver unit can be built for about $15-$20 in parts. We used to use this for a demonstration in ELEC 3030 (RF Systems Lab), but aligning the lasers took quite a bit of time to setup.
 ====== Design =======
@@ Line 34: / Line 34: @@
 | 9V battery clip                        | 2        |                          |
 | SPST switch                            | 2        |                          |
+===== Other Materials =====
+You will also need:
+  * A microphone
+  * Speakers
+  * Cables to connect the microphone and speakers
+  * Two 9V batteries
+====== Photos ======
+===== Transmitter =====
+{{:transmitter_2.jpg?direct&400|}} {{:transmitter_4.jpg?direct&400|}}
+===== Receiver =====
+{{:transmitter_5.jpg?direct&400|}} {{:transmitter_3.jpg?direct&400|}}
+====== Experiments/Demonstrations ======

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