Touch keypad
About the Touch keypad PCB
Touch keypad is an open source PCB design by bfrigon, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 99.1 × 25.4 mm, with 19 components from 12 distinct parts.
Other key parts include the AT42QT1070 and LP2981-33DBVT. By type, the board carries 8 resistors, 4 capacitors, 3 switches, 2 ICs and 2 transistors.
It belongs with the iot & wireless and displays & leds designs in this gallery.
From the project
Alarm clock (v3)
Main components on the Touch keypad
Touch keypad bill of materials (BOM)
19 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AT42QT1070 | SOIC14N | U1 |
| 1 | LP2981-33DBVT | SOT23-5 | U2 |
| 2 | BSS138 | SOT23 | Q1, Q2 |
| 1 | ALARM | TouchPad-700x600 | SW1 |
| 1 | MENU | TouchPad-700x600 | SW2 |
| 1 | SET | TouchPad-800x600 | SW3 |
| 2 | 1uF | C-0805 | C1, C3 |
| 1 | 100nF | C-0603 | C2 |
| 1 | 3.3uF | C-0805 | C4 |
| 4 | 10k | R-0603 | R1, R3, R7, R8 |
| 1 | 100k | R-0603 | R2 |
| 3 | 470 | R-0603 | R4, R5, R6 |
Touch keypad design files
The KiCad project lives in the bfrigon/alarm-clock-v3 repository on GitHub; these links point at the commit this page was built from.
Touch keypad: common questions
How big is the Touch keypad PCB?
The Touch keypad measures 99.1 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Touch keypad?
19 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Touch keypad design files?
From the bfrigon/alarm-clock-v3 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Touch keypad design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which bfrigon chose for the repository.
More boards in alarm-clock-v3
AVR/Arduino4-layer panel
99.1 × 91.4 mm90 parts2LCC-BY-SA-4.018
AVR/ArduinoMotherboard
99.1 × 39.4 mm76 parts2LCC-BY-SA-4.018
Daughterboard
67.3 × 39.4 mm73 parts2LCC-BY-SA-4.018
Psu
44.5 × 30.5 mm40 parts2LCC-BY-SA-4.018
Front Panel
99.1 × 19.1 mm23 parts2LCC-BY-SA-4.018
Panel rgb digits
43.8 × 39.4 mm16 parts2LCC-BY-SA-4.018
Display - RGB Seven Seg. Digit
22.9 × 39.4 mm16 parts2LCC-BY-SA-4.018
Level shifter
21.6 × 24.1 mm10 parts2LCC-BY-SA-4.018
Rgb lamp
12.7 × 40.6 mm6 parts2LCC-BY-SA-4.018
Rgb dots
11.4 × 29.2 mm4 parts2LCC-BY-SA-4.018
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