Analog Interfacing to Embedded Microprocessor Systems, 2nd Edition

Appendix D

Python Code for Chapter 11;

Excel Data for Chapter 4

Following is the Python code used to generate the various waveforms in Chapter 11 using

the light bulb/phototransistor simulator. External routines PWM and ADCREAD write

values to the PWM controller and read data from the ADC that is connected to the

phototransistor collector. All code uses the Python ‘‘time’’ module to implement delays.

The hardware communicates with the host PC using a 115,200 baud serial link, so an

open-source serial module also was used. To avoid confusion, those details are left out of

these examples, which include only the portions of the code necessary to illustrate ...