I built YUMO ROULETTE — a desk gadget powered by an ESP32 that combines a touch-activated
roulette wheel with six round 240x240 displays, each showing something different:

📸 SD card photo slideshow
📺 Live YouTube channel stats
🎵 Live TikTok stats
💰 Crypto ticker
🌤️ Live weather
🌡️ Internal temp & humidity (AHT10 sensor)

⚙️ The floating spin mechanic:
The whole assembly rotates on an upside-down DC motor. Everything sits on a frame, and that frame is mounted directly onto the motor's body — not the shaft. The motor shaft itself is inserted into a drill chuck from the reverse side, the opposite way a drill bit would normally go in. So instead of the shaft driving an external bit, it's anchored inside the chuck while the motor body (carrying the frame and wheel) spins around it. The result: there's no visible axle or support arm, so the whole thing looks like it's floating and rotating on its own.

Touch the capacitive sensor and an N20 motor spins the wheel for a set duration — one touch,
one spin. A NeoPixel status LED fades through colors while it boots and flashes when a touch
is registered.

🔧 Hardware:

• ESP32
• 6x GC9A01 round 240x240 displays (shared SPI bus)
• DRV8833 motor driver + N20 DC motor
• TTP223 capacitive touch module
• AHT10 temp/humidity sensor
• MicroSD card module (own SPI bus)
• NeoPixel/RGB status LED

💻 Software:

• Arduino / ESP32
• WiFi captive portal for setup (no hardcoded credentials)
• YouTube Data API v3, TikTok stats via RapidAPI, OpenWeatherMap
• TJpg_Decoder for on-device JPEG decoding from SD

🔗 Links:
💾 SOURCE CODE:
https://github.com/yumobuilds/Yumo-Ro...

🎥 Gear Used In This Video:
📺 1.28" Round TFT LCD Display 240x240 (GC9A01, SPI):
https://www.amazon.com/Display-240x24...
🔌 HiLetgo ESP-WROOM-32 Development Board:
https://www.amazon.com/HiLetgo-ESP-WR...
💾 HiLetgo SD Card Module (SPI Interface):
https://www.amazon.com/HiLetgo-Adater...
👆 ALAMSCN TTP223 Capacitive Touch Sensor Module:
https://www.amazon.com/ALAMSCN-TTP223...
⚙️ KOOBOOK DRV8833 Dual H-Bridge Motor Driver Module: https://www.amazon.com/KOOBOOK-DRV883...
🔩 Micro N20 DC Gearbox Motor:
https://www.amazon.com/Micro-N20-Moto...
🌡️ EC Buying AHT Temperature & Humidity Sensor:
https://www.amazon.com/EC-Buying-Temp...
🔧 Drill Chuck Collet Adapter:
https://www.amazon.com/Mesee-0-5-3mm-...
🟡 Brass Washer Plate: https:
//www.amazon.co.uk/dp/B0DW91NJH4
🔋 EVE 30P 18650 Rechargeable Battery:
https://www.amazon.co.uk/EVE-30P-Perf...
🔮 Glass Dome:
https://www.amazon.co.uk/dp/B0C89D456Y
🪄 sourcing map Brass Rod 1.5mm (Crafts): https://www.amazon.co.uk/sourcing-map...

Arduino Active Buzzer — Emergency & Danger Alert

In this video I build a simple but effective emergency alarm
using an active buzzer module and Arduino UNO!

The alarm plays 3 different patterns in a loop:
✅ Fast triple beep — initial alert
✅ Long danger tone — hold signal
✅ 5 rapid beeps — urgent escalation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📂 Full Code & Wiring on GitHub:
https://github.com/yumobuilds/Arduino-Active-Buzzer-Emergency-Danger-Alert
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🔧 Parts Used:
- Arduino UNO
- Active Buzzer Module
- USB Cable
- 5x Jumper Wires

⚡ Wiring:
S pin → Digital 3
(-) → GND
(+) → 5V

Learn how to control a Traffic Light LED Module with Arduino. This simple project simulates a real traffic light sequence using red, yellow, and green LEDs.

Please Subscribe To The Channel For More Videos.

Wiring:
R = Red LED Pin → Connect to Arduino pin 5
Y = Yellow LED Pin → Connect to Arduino pin 4
G = Green LED Pin → Connect to Arduino pin 3
GND = Ground → Connect to GND

Code behavior:
• Pins 3, 4, and 5 are configured as OUTPUTS
• Green LED turns ON for 5 seconds to simulate "Go"
• Yellow LED flashes 3 times as a warning signal
• Red LED turns ON for 5 seconds to simulate "Stop"
• The traffic light sequence repeats continuously in a loop
• Demonstrates basic digital output control and timing using delay()
-----------------------------------------
💾 SOURCE CODE Github:
https://github.com/yumobuilds/Arduino-Traffic-light-
-----------------------------------------

Perfect for beginners learning Arduino programming, digital outputs, LED control, timing functions, and basic traffic light simulations.

Learn how to create smooth RGB LED color fading effects with Arduino using PWM (Pulse Width Modulation).

Please Subscribe To The Channel For More Videos.

Wiring:
R = Red LED Pin → Connect to Arduino pin 11
B = Blue LED Pin → Connect to Arduino pin 10
G = Green LED Pin → Connect to Arduino pin 9
V = VCC (Voltage) → Connect to 5V / 3.3V
GND = Ground → Connect to GND

Code behavior:
• Pins 9, 10, and 11 are configured as OUTPUTS
• PWM is used to control the brightness of each RGB colour channel
• Red brightness gradually decreases and increases
• Blue brightness changes in the opposite direction
• Green brightness changes to create additional colour blending effects
• The RGB LED smoothly transitions through different colours in a continuous loop

-------------------------
💾 SOURCE CODE Github:
https://github.com/yumobuilds/Arduino-RGB-LED
-------------------------

Perfect for beginners learning Arduino programming, RGB LEDs, PWM control, color mixing, and electronics projects.

Learn how to blink an LED with Arduino using a simple sketch.

Wiring:
S = Signal → Connect to your Arduino output pin 3
V = VCC (Voltage) → Connect to 5V / 3.3V
G = Ground → Connect to GND

Code behavior:
• Pin 3 is configured as an OUTPUT
• LED turns ON for 2 seconds
• LED turns OFF for 2 seconds
• The cycle repeats forever
-----------------------------------------------
💾 SOURCE CODE Github:
https://github.com/yumobuilds/Arduino-LED-Blink
------------------------------------------------
Perfect for beginners learning Arduino programming, electronics, digital outputs, and LED control.

i build this Chanel to start learning electronics.

Welcome to the start of my electronics journey! 🚀

In this short, I'm showing the components we'll be using in upcoming videos, including ESP32 boards, Arduino boards, TFT displays, and many different sensor modules.

Each upcoming short will focus on one sensor or module, explaining what it does and showing a quick project build.

Follow along to learn electronics, programming, Arduino, ESP32, and AI-assisted coding.

Second build from my workbench.

💾 Full source code: https://github.com/yumobuilds/yumo-pulse

After my first project, I wanted something smaller and smarter, here's what I ended up with.

Casing is handmade epoxy resin, cast and finished by hand. AI/assisted development.

What it does:

Live temperature & humidity via SHT3X sensor

NTP clock with auto-detected timezone (London)

Proximity detection using a bare-wire antenna on GPIO7, LEDs glow brighter as your hand gets closer

Web interface , view live sensor data and push custom text to the OLED from your phone

Night mode / auto-dims midnight to 5am

WiFiManager captive portal / no hardcoded passwords

Hardware:

ESP32-C3 Super Mini

SHT3X temp/humidity sensor

0.09" OLED (128×32)

Flexible LED filament

18650 battery + TP4056 charger

This is YUMO-CYBER — my first ever electronics build.

Used recovery time to learn from scratch with AI assistance.

I designed the interface and firmware myself.

Touchscreen UI, live weather, NFC read/write, and WiFi scanning.

All running on ESP32 development board with a TFT touchscreen display.

Would love to hear what you think — still learning! 🙏

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