Introduction - If you have any usage issues, please Google them yourself
Use MSP430G2231 PWM output low-pass filter and comparator to make a A/D converter. : Do not use the MSP430 comes with A/D converter trend of the A/D conversion results through the development board of the red and green, and red light signal acquisition to reduce the green light to signal acquisition increases the A/D conversion results can be observed by looking at variables can also be the other way. Resolution: 0.01V, range: 0 ~ 2V (DC signal, potentiometer partial pressure generated)