CodePudding user response:
410 c development board does not provide a 3.3 v power supply interface, if there are two ways to use 3.3 v power supply, the first level conversion module, you can use 410 c development board access to the 5 v power supply, through the transformation output of 3.3 v, 3.3 v power conversion module can choose ASM1117 power converter; The second method is to adopt the way of fly line, from the back of the board of the under-16 power control chip, the lower left corner of the draw out a line, here is the 3.3 v power supply output,CodePudding user response:
No 3.3 V power supply, but you can use the pin you pick one,