Introduction: Tutorial for TTP223 Touch Sensor Module ( Capacitive)
Description
The TTP223 is a touch pad detector IC replicating a single tactile button. This touch detection IC is designed for replacing traditional direct button key with diverse pad size.
Features
1. Input Voltage: 3.3V - 5.5V DC
2. Module size: 15mm x 11mm
3. Stable touching detection of human body for replacing traditional direct switch key.
Step 1: Material Preparation
For this tutorial, we required these items:
1. TTP223 Touch Sensor Module ( Capacitor)
2. 10mm LED (Yellow)
3. Resistor 220 ohm
4. Breadboard Power Stick 3.3V / 5V
5. Li-Ion Rechargable Battery 7.4V 1200mAh
Step 2: Pin Definition
Trigger setting mode: (1 = Short ; 0 = No Short)
Jumpers AB
Momentary / High Output 00 (used in this tutorial)
Self Lock / High Output 01
Momentary / Low Output 10
Self Lock / Low Output 11
Step 3: Hardware Connection
Make the connection as above picture.
Step 4: Results
Based on the results,
1. The LED will turn on when we touch the TTP223 Capacitive Touch Sensor Module.
2. If no touching detected, the LED will turn off.
Step 5: Video
This video shows the demonstration of tutorial how to use TTP223 Capacitive Touch Sensor Module.
30 Comments
Question 1 year ago
How can i make Touch Sensor which is always trigger when i touch it and give HIGH, and when i dont touch it it will not triggered or give "LOW".
I already buy "TTP223B" as touch sensor module for arduino but that sensor cant always trigger when i touch (it will give HIGH when i touch it till 5-6 seconds and it will give LOW until next triggered)
Maybe thats because Auto Callibrating Mode from the IC in that module.
Answer 9 months ago
Have you found an answer to this yet? Please let me know, I really need an answer, Thanks
Answer 11 months ago
You just need to follow the directions for "Self Lock / High Output".
Apply a drop of solder between the 2 pads at the "B" on the board. (See included photo)
This will allow you to tap it on... it will stay on.... and then tap again to turn it off. If the "A" pads are also soldered, it won't work, so solder the "B" pads only!
Hopefully I didn't misunderstand what you were asking and I was able to answer your question. If you already knew this, then I don't know what else to suggest.
Answer 11 months ago
hii, could u solve the problem? i have same trouble.
Question 1 year ago
How can i make Touch Sensor which is always trigger when i touch it and give HIGH, and when i dont touch it it will not triggered or give "LOW".
I already buy "TTP223B" as touch sensor module for arduino but that sensor cant always trigger when i touch (it will give HIGH when i touch it till 5-6 seconds and it will give LOW until next triggered)
Maybe thats because Auto Callibrating Mode from the IC in that module.
Question 1 year ago on Step 5
In Momentary / High Output 00 mode sensor is off after 12 seconds even when touched. Please help me that we do in ttp223 that it will work as long as 1 stay in touch.
Question 2 years ago on Introduction
Sir/Ma'am can you please tell me that how I can use this module in my project as I fully completed my project and I can't break but I have 2 wires which is for switch so is it posible to use those 2 wire with TTP223 module please tell.
Extremely sorry for my bad English.
2 years ago on Step 5
Never ever cross connect the negative and positive terminal I did ( just to see what will happen ) and it burns then lost my 3 touch pads..... You can check out my channel to see the results... YT Channel name:- ProTech Studios
Question 3 years ago
Can you to me how to wire the ttp223 with its own power supply. I'm using a 5v power supply to turn on 5v LEDs using the ttp223. The circuit works fine but there's a 2v drop over the ttp223 meaning the LEDs only get 3v (very dim) I can't increase the input voltage as the ttp has an operating voltage of 5.5v max
Answer 2 years ago
Use active low settings and connect GND of LED to IO pin.
2 years ago
How can I power multiple sensors off one power supply? I need to power four of these sensors off one battery but when I do they all trigger when just one sensor is touched.
Question 4 years ago
Can you tell me how I can increase the sensitivity of the sensor. I need to put this sensor behind a piece of wood and it is not responding. Thanks.
Answer 4 years ago
I'll suggest a simple and easy way...
Put a thin pin/nail through the wood...
Reply 4 years ago
Interesting idea. Will try it. Thanks.
Reply 3 years ago
ojo no te pinches el dedo
3 years ago
Can increase sensivity more then 10mm without touch the ped....adv
Question 3 years ago
how much current and voltage output from TTP i/o?
Question 3 years ago on Step 2
I need control 230 led lap ttp 223
How to do it?
Answer 3 years ago
Use a 5vdc relay
Question 3 years ago on Step 3
I want to use a 9V battery to light up 3x 3V LED in serial, how can I use this TTP223 with a higher power source? How is the wiring?