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  1. i plan to just use a standard 20mA LED. so i...

    i plan to just use a standard 20mA LED. so i don't need a transistor right? i just thought the current limit for the teensy adds up, so if i have 20 pins each powering a 20mA LED, the 400mA would...
  2. understanding current consumption on the teensy 4.0

    I have the teensy 4.0 as a flight controller on a quadcopter. i have a radio receiver, MPU-6050, and four motors that are being PWM controller and I plan to add a temperature sensor. bluetooth module...
  3. So I should watch out for putting too much...

    So I should watch out for putting too much current on the teensy pins through the continuity tests?
  4. I haven't learned about inductance yet in my...

    I haven't learned about inductance yet in my engineering courses but no. They are connected to individual PWM pins. Each motor has a digital pin that is connected to pins 6,7,8,9. I think I just...
  5. 25674 That is my messy rough schematic if it...

    25674
    That is my messy rough schematic if it helps decipher anything. it is possible pins got shorted while i soldered them but i did continuity checks and and i didn't hear a beep between PWM motor...
  6. oh so it wouldn't break that pin but the entire...

    oh so it wouldn't break that pin but the entire board? yikes. it is possible that i plugged in my motors in reversed order. so instead of (G,5V,Digital) where digital connects to a PWM pin on teensy,...
  7. yep, Vin or the 5V pin. that is what i used.

    yep, Vin or the 5V pin. that is what i used.
  8. did i just kill my teensy 4.0? will not turn on when supplied power.

    i have been working on a drone and decided to move my breadboard circuit to a protoboard. so first i had the radio receiver, IMU sensor and drone's 5V battery connected. things worked perfectly. i...
  9. that is good confirmation thanks. so the smoke i...

    that is good confirmation thanks. so the smoke i am assuming was probably from the reverse polarity on the sensor. i will try to test the pins of my teensy to make sure they are not burned out. and i...
  10. can you power a load from the 5V pin of the teensy 4.0 such as a sensor

    the above question sounds foolish because what else is the 5V pin for? but if i power a sensor's VCC and ground with 5V, its communication pins (trigger and echo) with output greater than 3.3V back...
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