Magic Cup Tilt Switch Module KY027
The KY‑027 Magic Cup Tilt Switch Module integrates a mercury tilt switch, LED, 10 kΩ series resistor, and 4-pin male header on a small PCB (approx. 18.5×14 mm). When the module is tilted or vibrated, the internal mercury switch closes, activating the onboard LED and authorizing a digital state change on the “S” output pin. This trigger can be forwarded to microcontrollers like Arduino, ESP32, Raspberry Pi, or Pico for programmable interaction.
Features
- Built-in mercury tilt switch detects motion or orientation change.
- Onboard LED illuminates when tilt switch closes.
- 10 kΩ resistor pre‑installed for power usage compatibility.
- Signal output (“S”) pin reflects tilt state digitally.
- LED control input (“L”) allows PWM brightness control.
- Supports both 3.3 V and 5 V systems with required series resistor (120 Ω for 3.3 V, 220 Ω for 5 V).
- Low-power standby; lightweight (~2 g) and compact footprint (36 × 15 × 14 mm).
Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3 V – 5.5 V |
| Logic High | Pulled to Vcc |
| Logic Low | Pulled to GND |
| LED Voltage | ~1.9 V |
| LED Current | ~20 mA |
| Series Resistor | 10 kΩ (onboard) |
| PCB Dimensions | 19 mm × 14 mm |
| Weight | ~2 g |
| Interface Pins | GND, VCC, S (signal), L (LED control) |
| Compatible with | Arduino, ESP32, Raspberry Pi, Micro, Pico |
PINOUT
- ‘G’ / ‘–’ = Ground
- ‘+’ = Vcc (3.3 or 5V to match uControllers)
- S = Output of the tilt switch. Connects to a digital input pin on uC. Active LOW
- L = Input to drive LED. Connects to a digital output pin on uC. Active HIGH
Applications
- “Magic light cup” interactive effects: two modules controlling each other’s LED brightness via tilt and PWM.
- Motion or vibration-triggered lighting or status indication.
- Simple tilt alarm or tilt-detection circuit.
- Input device for interactive displays, toys, and art installations.
- Reaction-based IoT prototypes and sensory feedback systems.
Package Contents
- 1x Magic Cup Tilt Switch Module KY027 (with LED, tilt switch, and pin header).
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