Hi,
I have a simple question but I cannot find a satisfactory answer anywhere. Not even in this forum. My 3.3v teensy 3.0 is on the way and I would like to made a simple 8x8 matrix using MAX7219 which is a 5V device. Normally I would use a level shifter or MOSFET but in all example the MAX7219 seems to be connected directly to the Teensy. Does de MAX7219 work at 3.3V, even though the datasheets says different?
None of the examples at pjrc.com, like https://www.pjrc.com/teensy/td_libs_Matrix.html, do mention the issue.
Any experiences?
I have a simple question but I cannot find a satisfactory answer anywhere. Not even in this forum. My 3.3v teensy 3.0 is on the way and I would like to made a simple 8x8 matrix using MAX7219 which is a 5V device. Normally I would use a level shifter or MOSFET but in all example the MAX7219 seems to be connected directly to the Teensy. Does de MAX7219 work at 3.3V, even though the datasheets says different?
None of the examples at pjrc.com, like https://www.pjrc.com/teensy/td_libs_Matrix.html, do mention the issue.
Any experiences?
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