Hello everyone,
I'm having a hard time finding information about how to properly power supply 2 8x8 led matrix (16x8) with the MAX7219 from a Teensy 3.2.
As you may know, the MAX7219 needs 5V to work (datasheet says it may work with 3.3, but they cant tell for sure), and teensy outputs 3.3v.
I saw some solutions where an external power supply is used to power up the led matrix and then the USB cable to power up the board, but i want to use only 1 power supply (or cable) to power up everything.
I'm using this module
how can this be done?
I'm having a hard time finding information about how to properly power supply 2 8x8 led matrix (16x8) with the MAX7219 from a Teensy 3.2.
As you may know, the MAX7219 needs 5V to work (datasheet says it may work with 3.3, but they cant tell for sure), and teensy outputs 3.3v.
I saw some solutions where an external power supply is used to power up the led matrix and then the USB cable to power up the board, but i want to use only 1 power supply (or cable) to power up everything.
I'm using this module
how can this be done?