Anyone Willing to Review My UMich Essays?

Hello! I am planning to ED to UMich's School of Engineering this cycle and was wondering if anyone wanted to take a look at my essays? I feel like they are pretty strong and unique and would like a second eye on them. Thanks!

reddit.com
u/bfffornever123 — 4 days ago
▲ 2 r/APChem

Khan Academy or Jeremy Krug?

Hello! I am taking AP Chem this year and it has been 2 years since I took basic-level chemistry in my sophomore year. To refresh my memory, I have been studying ahead of my class in Khan Academy. My teacher is notorious for not really teaching anything and my friends who have taken the course recommended Jeremy Krug's videos. I am currently on 1.5 and the content between the two seems to be a little different. I would prefer to stick to one source instead of rehashing the similar info twice. What would you guys recommend?

reddit.com
u/bfffornever123 — 7 days ago
▲ 11 r/esp32

NEMA 17 Issues

Hello! I am trying to run a NEMA 17 motor using a DRV8825 driver and ESP32. I have been able to have the motor spin after switching the MS1 pin on and off, but after plugging the battery in again, it reverted to the behavior shown in the video. Does anyone have any advice?

Code:
#define DIR_PIN 25
#define STEP_PIN 26

int stepDelay = 500; // microseconds between step pulses — lower = faster

void setup() {
pinMode(DIR_PIN, OUTPUT);
pinMode(STEP_PIN, OUTPUT);

digitalWrite(DIR_PIN, HIGH); // set direction once — HIGH = one way, LOW = the other

Serial.begin(115200);
delay(500);
Serial.println("Continuous rotation starting...");
}

void loop() {
digitalWrite(STEP_PIN, HIGH);
delayMicroseconds(stepDelay);
digitalWrite(STEP_PIN, LOW);
delayMicroseconds(stepDelay);
}

u/bfffornever123 — 1 month ago
▲ 16 r/esp32

Help with DRV8825 ESP32 connection.

I am trying to drive a NEMA 17 motor and I have gotten the lights to come on using a buck converter from a 3s lipo battery. Strangely, I haven’t been able to get the motor to run and the heat sink I placed on the driver gets burning hot in seconds. Is there something that I am doing wrong? Any help would be appreciated.

u/bfffornever123 — 1 month ago
▲ 10 r/esp32+1 crossposts

DRV8825 to ESP32 Connection

Hello! I have just gotten NEMA 17 stepper motors and DRV8825 drivers to power them. I am using an ESP32 as the microcontroller and a 3 cell Lipo battery to power the circuit. I haven’t been able to get any power to the ESP despite following a youtube tutorial step by step in a breadboard. I feel like using the expansion board for the DRV would be easier tho, so if anyone has any experience with the expansion board that would be greatly appreciated.

u/bfffornever123 — 1 month ago
▲ 5 r/esp32

Unable to run L298n with ESP32

Hello, I am trying to run 2 motors using a L298n and an esp32. I was able to get the circuit running using an external USB-c connection from my computer. But when I ran the power through a buck converter to the esp32 (7.4->5v), the lights of it turned on, but the motor driver was unresponsive. Something weird I noticed was that the circuit only worked when the 5v pin from the driver was connected to the esp even though it has 0v output. Should i try doing that for the new circuit? Or any ideas

u/bfffornever123 — 2 months ago

Anyone Willing to Review my Personal Statement?

Hello! I wrote an essay about my Tourette's that I have been suffering from for as long as I can remember. I've gotten edits from my parents, but I would also like another perspective! Please let me know if you are willing to look over it

reddit.com
u/bfffornever123 — 2 months ago

Advice? Farthest rock looking funky

Hello! This is the first landscape i’ve ever done and I’m having trouble with the rock furthest in the back (between right and middle). It just doesn’t pop out from the sky. Any advice? (for both this and anything that comes to mind)

u/bfffornever123 — 2 months ago

Is it too late to cold email?

I am a rising senior in HS and I am looking to do some research this summer. I am interested in engineering, but I feel like it is too late to reach out. What do you guys think?

reddit.com
u/bfffornever123 — 2 months ago

Engineering Passion Projects?

Hi! I am a rising senior who is thinking of going into Electrical Engineering. I was wondering what some examples of engineering passion projects people have done are?

reddit.com
u/bfffornever123 — 2 months ago