TTP223 Capacitive Touch Sensor Module — Self-Lock/No-Lock, High/Low Output, Arduino (10-Pack)

TTP223 Capacitive Touch Sensor Module — Self-Lock/No-Lock, High/Low Output (10-Pack)

The TTP223-BA6 capacitive touch sensor module detects finger touch without mechanical contact — no moving parts, no wear, silent operation. The output mode (self-locking or no-locking, high or low level) is configurable via two solder pads (A and B), making it adaptable for both momentary and latching touch switch applications. Pack of 10 for prototyping stock or multi-button projects.

Electrical Specifications

• IC: TTP223-BA6
• Supply Voltage: 2.5V – 5.5V
• Output: Digital TTL (high or low level)
• Module Size: 15 × 12mm
• Response Time: Fast (<60ms)
• Pack Quantity: 10 modules

Output Mode Configuration (A/B Solder Pads)

• AB=00: No-lock, High TTL output (momentary HIGH when touched)
• AB=01: Self-lock, High TTL output (toggles HIGH/LOW on each touch)
• AB=10: No-lock, Low TTL output (momentary LOW when touched — active LOW)
• AB=11: Self-lock, Low TTL output (toggles on each touch, active LOW)
• Default (no solder): AB=00 — no-lock, high output

Touch vs Mechanical Switch

• Capacitive touch (this module): No moving parts, silent, works through thin non-conductive surfaces (glass, acrylic, plastic)
• Mechanical switch: Audible click, requires physical force, wears over time

Typical Applications

• Touchless ON/OFF switch for Arduino projects
• Capacitive touch lamp dimmer
• Touch-activated relay control
• Hidden touch switch behind panel surface
• Multi-touch button array (10-pack)

TTP223-BA6 capacitive touch module, 10-pack — configurable self-lock/no-lock, high/low output for touchless Arduino switch applications.

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