LeftyMaker on Instagram: "In my recent DIY touch-sensitive button project, I used a 5V voltage regulator, so one of my viewers asked if the device would work from a 5V supply. This was an excellent question: a voltage regulator requires the input voltage to be higher than the desired output voltage. The answer is YES, my module works from a 5V supply without issues. In fact, it works from as low as 2.5 volts. That's because I used an LDO -- a low-dropout voltage regulator. The HT7550-1 has a dro