Troubleshooting Guides

Stuck on an error? Display not working? ESP32 won't connect? We've got you covered with hyper-specific fixes for common maker problems.

NRF24L01 Not Working? The Magic Capacitor Fix

NRF24L01 Not Working? The Magic Capacitor Fix

Is your NRF24L01 transceiver failing to initialize, randomly dropping packets, or getting terrible range? Here is the definitive guide to fixing NRF24L01 power supply issues.

9/19/2026

Fixing 'Port Not Found' on Arduino Clones (CH340 Driver Issue)

Why your computer refuses to see your cheap Arduino clone and how to fix it by installing the CH340 drivers.

9/13/2026
WS2812B LEDs Flashing Wrong Colors or Glitching

WS2812B LEDs Flashing Wrong Colors or Glitching

Why your Neopixels are having a seizure and displaying random colors instead of a smooth rainbow, and how to fix the 3.3V data signal issue.

8/30/2026

ESP32 Brownout Detector Triggered: How to Stop the Reboot Loop

Is your ESP32 stuck in a boot loop crying about a 'Brownout detector was triggered'? Learn what causes it and the guaranteed ways to fix it permanently.

8/24/2026
Servos Jittering and Twitching: How to Stop the Madness

Servos Jittering and Twitching: How to Stop the Madness

Are your servo motors acting like they've had six shots of espresso? Here's how to fix jittering and twitching servos before they release the magic blue smoke.

8/17/2026
Stepper Motor Vibrating but Not Spinning: How to Fix It

Stepper Motor Vibrating but Not Spinning: How to Fix It

Is your stepper motor just humming, vibrating, or grinding without actually turning? Here are the top 3 reasons why, and how to fix them.

7/25/2026
The "Brownout Reset": Why Your ESP32 Keeps Restarting

The "Brownout Reset": Why Your ESP32 Keeps Restarting

Does your ESP32 work perfectly until the exact moment it tries to connect to Wi-Fi? You are dealing with a Brownout Reset. Here is how to fix it.

7/24/2026
Phantom Presses: How to Fix Floating Pins and Bouncing Buttons

Phantom Presses: How to Fix Floating Pins and Bouncing Buttons

Is your Arduino registering random button presses even when you aren't touching anything? Here is how to fix floating pins and bouncing buttons.

7/23/2026
Garbage in the Serial Monitor: Fixing Weird Characters

Garbage in the Serial Monitor: Fixing Weird Characters

Is your Arduino Serial Monitor spitting out backward question marks and gibberish? Here is the one-click fix for baud rate mismatches.

7/22/2026
Why Your ESP32 Wont Upload Code (The "Boot Button" Trick)

Why Your ESP32 Wont Upload Code (The "Boot Button" Trick)

Getting a fatal error when uploading to an ESP32? Learn why you need to hold the BOOT button, and how to fix the hardware permanently.

7/21/2026
I2C Device Not Found: Why Your Scanner Hangs or Returns Nothing

I2C Device Not Found: Why Your Scanner Hangs or Returns Nothing

Is your Arduino failing to detect your I2C LCD or sensor? Learn why the I2C Scanner hangs, returns 'No I2C devices found', or throws NACK errors, and how to fix it.

7/21/2026
"avrdude: stk500_getsync()": Fixing the Famous Arduino Upload Error

"avrdude: stk500_getsync()": Fixing the Famous Arduino Upload Error

The Arduino IDE is refusing to upload your code? Here is the ultimate checklist to fix the dreaded stk500_getsync() error once and for all.

7/20/2026
Fix: I2C LCD Display Only Showing Blank Boxes (Arduino)

Fix: I2C LCD Display Only Showing Blank Boxes (Arduino)

Is your 16x2 or 20x4 I2C LCD display lighting up but only showing a row of solid white or black boxes? Here is the exact fix.

7/16/2026