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rvanderwall / RolyRobot

Meccanoid
GNU General Public License v3.0
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how to connect wires considering 3.3 volt input limit on rpi #4

Open StormingMoose opened 10 months ago

StormingMoose commented 10 months ago

When I connect the servo wires to the rpi with the 22K ohm resistor wiring harness, the intput of the signal wire goes up to 5 volts as well. That is okay for an Arduino but the RPI has a 3.3 volt input limit. Should a logic level converter be used here?

I could not get the discovery to work either.

rvanderwall-ebuilder commented 10 months ago

I would certainly put the level converts in. That may be the issue with discovery as well. The 5V side may not see a logic 1 in the 3.3V side as high enough to be a 1.