Proto

Build a TV Remote Wristband

DIY TV Remote Wristband (Kid-Friendly Guide)

Make your own wearable remote to control your TV. It has buttons, lights, and sounds — and fits right on your wrist!

🧰 What You Need

🔌 Tools Needed

📷 Images

Here's what you're building (upload these images manually to Blogger):

Instruction Diagram:

Step-by-step instruction graphic

Final Product Look:

Finished Wristband

🔧 Step-by-Step Instructions

  1. Plug your ESP32 into the breadboard
  2. Connect the IR LED with 220Ω resistor and transistor to a GPIO pin
  3. Wire 4 push buttons to GPIOs 18, 19, 21, and 22
  4. Attach RGB LEDs (WS2812B) to a GPIO (e.g., GPIO 23)
  5. Connect buzzer/speaker to GPIO 25
  6. Hook up battery to TP4056, and power the ESP32
  7. Install MicroPython on ESP32
  8. Open Thonny, paste in the code below, and run it
  9. Test: Press buttons, see lights, hear beeps, and check IR output
  10. Print and fit everything into the 3D printed case

🧠 Code (MicroPython)

from machine import Pin, PWM
import time

btn_power = Pin(18, Pin.IN, Pin.PULL_UP)
btn_volup = Pin(19, Pin.IN, Pin.PULL_UP)
btn_voldown = Pin(21, Pin.IN, Pin.PULL_UP)
btn_mute = Pin(22, Pin.IN, Pin.PULL_UP)
speaker = PWM(Pin(25))

def beep(freq=1000, duration=100):
    speaker.freq(freq)
    speaker.duty(512)
    time.sleep_ms(duration)
    speaker.duty(0)

def send_ir(code_name):
    print("Sending IR:", code_name)
    beep()

while True:
    if not btn_power.value(): send_ir("Power"); time.sleep(0.5)
    if not btn_volup.value(): send_ir("Volume Up"); time.sleep(0.5)
    if not btn_voldown.value(): send_ir("Volume Down"); time.sleep(0.5)
    if not btn_mute.value(): send_ir("Mute"); time.sleep(0.5)

🖨 3D Printable Case

Download the flat-top case STL file: TV_Wristband_Case.stl

✅ Final Checklist

  • ✅ ESP32 programmed and working
  • ✅ IR, lights, and sounds tested
  • ✅ Fully assembled in wristband case
  • ✅ Battery charged via TP4056
  • ✅ TV responds to wristband control!

You're done! Wear your wristband and control your TV like a tech wizard 🎉

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