Hi everyone! First-time poster, long time lurker.
I recently broke a Teensy 3.6, by replicating the habits I learned on the Teensy 2.0 and sending Vin to my breadboard rails. 5v came back to A0 through the potentiometer I was testing, and then I could smell burning plastic. No more Teensy 3.6. Thankfully, someone took pity on me and gave me a replacement.
I'm a bit worried I'm going to make the same mistake again, because I want to get the Teensy to receive serial input from an Arduino Uno. I gather that sending the signal from the Uno's Tx pin straight into an Rx pin on the Teensy 3.6 will overload it, and I should not do that.
I'm trying to learn about level shifting and voltage dividing and whatnot so that I have the tools I need, but I also wanted to ask here if there's a particular breakout board or component that people tend to use when they want to get any of the non-5v-tolerant Teensies to listen to an input signal from a 5v system.
This feels like one of those questions that has a very obvious answer, but it's just not obvious to me because I lack the vocabulary or knowledge to make the right mental connections or do the right google searches.
I recently broke a Teensy 3.6, by replicating the habits I learned on the Teensy 2.0 and sending Vin to my breadboard rails. 5v came back to A0 through the potentiometer I was testing, and then I could smell burning plastic. No more Teensy 3.6. Thankfully, someone took pity on me and gave me a replacement.
I'm a bit worried I'm going to make the same mistake again, because I want to get the Teensy to receive serial input from an Arduino Uno. I gather that sending the signal from the Uno's Tx pin straight into an Rx pin on the Teensy 3.6 will overload it, and I should not do that.
I'm trying to learn about level shifting and voltage dividing and whatnot so that I have the tools I need, but I also wanted to ask here if there's a particular breakout board or component that people tend to use when they want to get any of the non-5v-tolerant Teensies to listen to an input signal from a 5v system.
This feels like one of those questions that has a very obvious answer, but it's just not obvious to me because I lack the vocabulary or knowledge to make the right mental connections or do the right google searches.