markmckenzie
New member
Hi, I am using two Teensys that communicate with each other to handle separate parts of a project. I am currently designing the wiring for my system and need to power some 3.3V devices. So far, I am planning on using the 3V3 ports on the Teensys to provide this power, however this would mean that a connection between the 3V3 ports on the Teensys would be established. Some initial research suggests that voltage regulators should not be wired in parallel, which is what I assume happens when the 3V3 ports are connected across two Teensys.
Also, I am worried about using an external voltage regulator to power just the 3.3V devices in case the regulator provides a slightly different voltage to the analog devices (such as some potentiometers). For similar reasons, I want to equalize the 3.3V power rails on the Teensys because a couple of the more critical sensors connect to both (so that I am not limited by communication speed).
If it helps, I can be flexible with the power source of my Teensys but prefer for it to be one of the pins (rather than the USB). Additionally, my power source provides 5V (regulated internally by the power source).
Does anyone have insight or suggestions? Thank you!
Also, I am worried about using an external voltage regulator to power just the 3.3V devices in case the regulator provides a slightly different voltage to the analog devices (such as some potentiometers). For similar reasons, I want to equalize the 3.3V power rails on the Teensys because a couple of the more critical sensors connect to both (so that I am not limited by communication speed).
If it helps, I can be flexible with the power source of my Teensys but prefer for it to be one of the pins (rather than the USB). Additionally, my power source provides 5V (regulated internally by the power source).
Does anyone have insight or suggestions? Thank you!
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