Yes, there was a time when I was doing everything analog. Then it came a time when even my audio amplifiers where "Class D" and I designed way smarter digital security systems based on real microcontrollers (among many other things), but I will always remember with pleasure my first successful (as in "I sold more than 10" :) ) product:
In the void is virtue, and no evil. Wisdom has existance, principle has existance, the Way has existance, spirit is nothingness.