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1PC CJMCU-0401 4-bit Button Capacitive Touch Proximity Sensor With Self-locking Function For Arduino Sensor Board

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In stock
Price: US $2.42 Sale Price: US $2.23
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery
On-time Delivery
Guarantees: On-time Delivery 60 days



CJMCU-0401 is a touch IC designed with capacitive sensing principle.
Its stable sensing method can be applied to a variety of electronic products, the panel dielectric can be completely insulated material,
designed to replace the traditional mechanical structure switch or ordinary buttons.
Provides four touch inputs and four direct output pins and four LED indicators.


1. Operating voltage: 2.0V ~ 5.5V
2. The highest power consumption is 11.5uA, low power mode is only 4uA ( in 3V and no load)
3. External configuration pin is set to multiple modes
4. High reliability, the chip built-in debounce circuit, which can effectively prevent external noise interference caused by the malfunction
5. Can be used for glass, ceramics, plastics and other media surface
6. With automatic calibration function, when no keys are touched, the system recalibration cycle is about 4.0 Sec

Package included:

1 x Sensor

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $2.42 / piece
Sale Price:  US $2.23 / piece