Hi Ambrogio,
Page 10, Figure 2 is a really simple bi-directional level shifter for 3.3V to 5V systems.
http://www.standardics.nxp.com/suppo...df/an97055.pdf
If you have a couple BS170 or similar on-hand, this one works, and it's cheap.
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Hi Ambrogio,
Page 10, Figure 2 is a really simple bi-directional level shifter for 3.3V to 5V systems.
http://www.standardics.nxp.com/suppo...df/an97055.pdf
If you have a couple BS170 or similar on-hand, this one works, and it's cheap.
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