Operating voltage:2.4V-5.5V. It is perhaps fair to repeat the previous caveat to remind that the objective is not to test the module but to observe the options. On the topic of MOT0, the option tables of the application note and the assumed case of MOT1 as open. Though the TTP224 IC does respond correctly to the shorting options, the module or at least the module used in this Instructable did not provide the confidence to use anything other than the default output circuit. Stable sensing method can cover diversity conditions. Module can set the output mode,output longest time, and fast/low power selection. 4. If it is assumed the required pins are VDD, VSS, TP1, TP2, TP3, TP4, TPQ1, TPQ2, TPQ3 and TPQ4, the pin count is 10 with the 6 others to be defined. This Capacitive Touch Module uses the touch-sensing IC TTP224 to add capacitive touch to your project . The touching detection IC is designed for replacing the traditional direct button key with a … Falling back on assumptions (again), it seemed fair to look at the options from two points. Try. DESCRIPTION:On-board TTP224 capacitive touch 4 key IC On-board 4 road level indicator. And the lines do not parallel and cross with other lines. The answer seems to be YES (or a lot of more went wrong). Of course it depends on the application, the proposition being that “if” the TTP224 form is acceptable. Stable sensing method can cover diversity conditions. Integrated Circuits (ICs) ship same day With the module positioned with the 6-pin header at the top, located on the right side of the module and outlined in the silk screen are holes for the male header/shorting blocks. TTP224: Description: 4 KEY TOUCH PAD DETECTOR IC : Download 4 Pages: Scroll/Zoom: 100% … The greatest difference is the addition of the LED and supporting SMD resistor network but it doesn't take more than a cursory point by point comparison to concluded the module's options cannot be all those promised in the application note. ignored.. Next is to review the options table of the TTP224 notes. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. The toggle option and the MOT option are mutually exclusive. Direct mode and Toggle mode selection pin available. active high or active low by option (TOG/AHLF/OD pin). The TTP224 is a touch pad detector IC which offers 4 touch key. An inspection of the module supports the notion the pins are in the sequence shown in the TTP224 notes but this need not be verified for the purpose of the Instructable. Working voltage: 2 V to 5.5 V DC Adjustable output mode, key output mode, longest time and fast/low power output PCB board size: 35(mm) x29 (mm). These are TOG (toggle), SM (single/multi-key) and MOT (maximum on time). Copyright 2020 © Components101. Preliminary TTP224/TTP224N TonTouchTM 2009/8/25 Page 1 of 4 Ver :2.0 4 KEY TOUCH PAD DETECTOR IC GENERAL DESCRIPTION The TTP224/TTP224N TonTouchTM IC is capacitive sensing design specifically for touch pad controls. Did you make this project? Maximum operating current 9.0uA at Fast mode. As we can see, the sense pad is connected to the input pin and two-slide switches are given to select the configuration of TOG and AHLB. Package included: 1 × TTP224 4-way capacitive touch switch digital touch sensor module switch button. It has a low power consumption with a wide range of operating voltage. With the module positioned with the 6-pin header is at the top, the IC is located below OUT3 and OUT4. Whether the options can be clearly invoked and their ‘functionality’ is important, not the PCB design. TTP224 has an auto-calibration feature for life and it has a re-calibration period of about 4.0 seconds. Just power with 2.4 to 5.5VDC and touch the pad to activate the sensor. TTP224 Datasheet(PDF) 2 Page - Tontek Design Technology: Part No. The place to start is with the application note and the TTP224 module or a reasonable image of that module. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. Similarly, MOT1 is not brought out in the 16-pins but could be assumed to be (internally) open when interpreting that option in the tables. The configurable output is set by those three pins as per the below chart. Isolating the PCB from any workbench debris is the paramount advantage of an under-pad. 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