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AJMRTC TTP223 TTP223B Capacitive Touch Switch Module Digital Touch Sensor Blue Board 1 Channel TTL Output for Arduino Raspberry Pi DIY Electronic Projects Touch Button Replacement
- - High-sensitivity capacitive touch detection, supports momentary and self-locking working modes via solder jumper setting
- - Wide DC operating voltage 2.0V to 5.5V, ultra-low idle power consumption for battery-powered IoT builds
- - Compact blue PCB design with digital TTL signal output, easy wiring with VCC, GND and SIG pins
- - Adjustable touch sensitivity by external capacitor, stable anti-interference performance for embedded projects
- - Widely compatible with Arduino, Raspberry Pi, MCU boards, perfect for DIY touch control automation projects
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Overview
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AJMRTC TTP223B capacitive touch sensor module is a single-channel digital touch switch built on TTP223 touch detection IC, replacing traditional mechanical push buttons. It adopts capacitive induction principle to detect human finger touch without physical pressing. The module supports two working modes: jog momentary and self-locking toggle, configurable by soldering the A/B pads on the back. It runs on 2.0V~5.5V DC power supply with ultra-low standby current, suitable for low-power electronic designs. The blue PCB board comes with power indicator LED and digital SIG output, directly connecting to MCU IO ports. Sensitivity can be tuned by adding external capacitance. Ideal for home automation, smart devices, robotics, Arduino and Raspberry Pi DIY electronics projects.
- Model: TTP223 / TTP223B
- Brand: AJMRTC
- Working Voltage: DC 2.0V - 5.5V
- Output Signal: Digital TTL Level
- Working Modes: Momentary (Jog), Self-Locking (Toggle)
- PCB Color: Blue
- Module Size: 24 x 24 x 7.2mm
- Interface: 3 Pins (VCC, GND, SIG)
- Sensitivity: Adjustable via external capacitor (1~50pF)
- Operating Temperature: -40 ~ +85
- Response Time: 60ms (fast mode), 220ms (low power mode)
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
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