I have a hc-sr04 sensor for distance and want to use it on the mBot. the hc-sr04 is a 5V device and the mBot is 3.3.
I have level shifters for 3.3 to 5v digital signals. But since the mBot is powered by 3.3V how do I get to 5v for the hc-sr04 and neopixels.
I’m thinking of using https://www.pololu.com/product/798/specs
I also need to power the 5v side of a 8 led neopixel strip. Each LED is 20ma so
8 x 20ma = 160ma + 15 ma for hc-sr04 = 175ma.
And the neopixel will be set to have the brightness at ~50%. So this will mean the current draw is much less. Anybody see any reason this won’t work?
Eric (aka daddyOh)