5Pcs TTP223 Capacitive Touch Switch Digital Touch Sensor Module
A part of the review has been auto-translated.
This capacitive switches are not bad. Its sensitivity are low so you can't put it in a case. The capacitive plane is on the components side instead of being on the back side. They work well for simples prototypes, but if you want to put your board in a case, they may not work very well.
Used it in a small project for a thermostat with two Arduino Nano. Works great.
Przycisk działa bardzo dobrze . Polecam
seems good sensors
OK
Very sensitive. Very cheap. These can be used as momentary switches without Arduino. Great buy.
All right.
good
Bien
I can't believe this actually works for less than $3