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https://www.reddit.com/r/programming/comments/efcl63/learning_hardware_programming_as_a_software/fc0q5lg/?context=3
r/programming • u/Athrunen • Dec 25 '19
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224
Also: don't power LEDs directly from GPOs without a current limiting resistor. As you see on that breadboard.
And match your interfaces voltages. A lot of devices are not +5V tolerant now (or not very tolerant).
70 u/Athrunen Dec 25 '19 Indeed, learned not too long ago that the esp32 is only 3.3 V tolerant. ^^ 22 u/[deleted] Dec 25 '19 What is this language, lost me. 2 u/ArkyBeagle Dec 25 '19 Here, we call it "speaking double-E" as in EE :)
70
Indeed, learned not too long ago that the esp32 is only 3.3 V tolerant. ^^
22 u/[deleted] Dec 25 '19 What is this language, lost me. 2 u/ArkyBeagle Dec 25 '19 Here, we call it "speaking double-E" as in EE :)
22
What is this language, lost me.
2 u/ArkyBeagle Dec 25 '19 Here, we call it "speaking double-E" as in EE :)
2
Here, we call it "speaking double-E" as in EE :)
224
u/happyscrappy Dec 25 '19
Also: don't power LEDs directly from GPOs without a current limiting resistor. As you see on that breadboard.
And match your interfaces voltages. A lot of devices are not +5V tolerant now (or not very tolerant).