TSP #10 - Tutorial on Waveform Shaping and Signal Constellation in an Optical Link

In this episode Shahriar uses a few components to beyond what there were originally intended for in order to setup an optical link! By using a BlinkM RGB LED, a Color Sensor, and two PIC USB Boards from Sparkfun Electronics, a stand-alone optical link is established. Various theories of operation, including multilevel data transmission, signal constellation and detailed circuit diagrams are also presented. The final result is an 8-PAM, 3-Wavelength optical link with a colorful three-dimensional constellation graph. The code for the transmitter IC, receiver IC and Matlab functions are available to download from http://TheSignalPath.com

The Signal Path
http://www.TheSignalPath.com

• #science_technology
• #blinkm
• #color_sensor
• #pic_microcontroller
• #fiber_optic
• #optical_link
• #electronics_tutorial
• #signal_constellation
• #multilevel_signaling
• #rigol
• #rc_low_pass