Touch Switch Circuit Diagram and Components List

Basic circuit overview, required components, and wiring explanation.

Touch Switch Circuit Diagram and Components List

A touch switch allows you to turn ON or OFF a device just by touching a sensor pad. It is widely used in lamps, home automation, and DIY electronics projects. Here’s a simple guide with a circuit diagram and components list.

---

Components List:

• TTP223 touch sensor module (or any capacitive touch sensor)

• Relay module (5V or 12V depending on the load)

• LED lamp, bulb, or small appliance (as load)

• Power supply (5V–12V depending on module)

• Connecting wires

• Breadboard or PCB (optional for DIY assembly)

---

Circuit Diagram:

Basic Connection:

Power Supply (5V/12V)
        │
       VCC ────> Touch Sensor VCC
       GND ────> Touch Sensor GND
OUT ────> Relay Module Input
Relay Module Output ───> Lamp/Bulb/Load

Working Steps:

1. The touch sensor detects your finger using capacitive sensing.

2. When touched, the sensor outputs a HIGH or LOW signal.

3. The relay module receives the signal and switches the connected device ON or OFF.

---

Advantages:

• No mechanical button needed

• Long-lasting and low maintenance

• Easy to integrate into DIY projects or home automation

• Compact and beginner-friendly

---

Applications:

• Touch lamps and bedside lights

• Home automation devices

• Small appliance control

• Electronics learning projects

---

. . -7% . PKR6,238 . -50% . PKR1,585 . -11% . PKR2,164

.

Explore deals

.

. -50% PKR630 . . -61% PKR1,267 . . -5% PKR10,695 . . -10% PKR3,158 . . -50% PKR13,844 . . . PKR1,191 . . -15% PKR1,129 . . . PKR5,642 . . -8% PKR19,648 . . -50% PKR1,137 . . -40% PKR1,217 . . -54% PKR1,056 . . -52% PKR1,729 . . -5% PKR2,848 . . -35% PKR3,804 . . -50% PKR27,041 . . -10% PKR17,259 . . -6% PKR470 . . -48% PKR1,186 . . -45% PKR1,048 . . -47% PKR17,524 . View more

.

Popular categories .
Home	.	Electronics	.	Phones
Beauty	.	Sports	.	Toys

Prices, deals and availability shown in this email reflect offers at send time and are subject to change. Please note that shipping fees are not included. Visit the product page for the latest info.

Download to get app-only deals   AliExpress Service Center Alibaba.com Singapore E-Commerce Private Limited, c/o 26/F Tower One, Times Square, 1 Matheson Street, Causeway Bay, Hong Kong