2 layers15.2 × 20.3 mm
2 layers70 × 100 mm
Timer
theapi/touch_timer3Kitchen timer with a touch interface
- Size
- 70 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 56
- Pads
- 135
- Tracks, vias
- 102, 10
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 4 Apr 2016
- Updated
- 13 May 2016
Overview
Timer is an open-source printed circuit board by theapi, from the theapi/touch_timer repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 70 × 100 mm with 26 parts on 56 nets, routed with 102 tracks and 10 vias.
It is built around the ATMEGA328P-AU and APA-102C-NEW. Its parts include 9 resistors, 5 capacitors, 5 ICs, 2 diodes and 2 transistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdtouch_timer
Kitchen timer with a touch interface
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitors_SMD:C_0805_HandSoldering | C1, C5 |
| 2 | 1.8k | Resistors_SMD:R_0805_HandSoldering | R2, R3 |
| 2 | 1uF | Capacitors_SMD:C_0805_HandSoldering | C3, C4 |
| 1 | 100K | Resistors_SMD:R_0805_HandSoldering | R8 |
| 1 | 100k | Resistors_SMD:R_0805_HandSoldering | R10 |
| 1 | 10K | Resistors_SMD:R_0805_HandSoldering | R7 |
| 1 | 10uF | Capacitors_SMD:C_0805_HandSoldering | C2 |
| 1 | 20k | Resistors_SMD:R_0805_HandSoldering | R1 |
| 1 | 220 | Resistors_SMD:R_0805_HandSoldering | R6 |
| 1 | 4.7k | Resistors_SMD:R_0805_HandSoldering | R4 |
| 1 | 820 | Resistors_SMD:R_0805_HandSoldering | R9 |
| 1 | APA_102C | touch_timer:APA_102C | U4 |
| 1 | ATMEGA328P-A | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | IC1 |
| 1 | BATTERY | Resistors_SMD:R_0805_HandSoldering | P1 |
| 1 | D_Schottky | Diodes_SMD:SOD-123 | D1 |
| 1 | ICSP | touch_timer:SIP-6-SMD | P2 |
| 1 | Led | LEDs:LED_0805 | D2 |
| 1 | MCP1755ST-3302E/DB | TO_SOT_Packages_SMD:SOT-223 | U3 |
| 1 | MTCH6102_SSOP | touch_timer:SSOP-28_5.3x10.2mm_Pitch0.65mm_masked | U2 |
| 1 | NMOS | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q1 |
| 1 | PMOS | TO_SOT_Packages_SMD:SOT-23_Handsoldering | Q2 |
| 1 | SPST | SMD_Packages:SMD-2010_Pol | SW1 |
| 1 | TOUCH_PAD_13 | touch_timer:CPA_12 | U1 |
Questions
How big is the Timer PCB?
It measures 70 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Timer use?
26 parts, built around the ATMEGA328P-AU and APA-102C-NEW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Timer KiCad files?
From the theapi/touch_timer repository on GitHub, at the commit this page was made from: the board is kicad/ada/timer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Timer design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from theapi/touch_timer
3- 2 layers18.8 × 23.4 mm
- 2 layers50 × 50 mm
Similar boards
- 2 layers86.4 × 110 mm
- 2 layers70 × 65 mm
APA102
Shootingmaker/MIDI-Lighting-Keyboard-teensy
MIDI -> LED Lighting-Keyboard with Teensy3.2
19 parts7MIT - 2 layers199 × 15.5 mm
- 4 layers288 × 288 mm
Upper PCB
Ajakovski/Chess-Master-Board
A chess board that sees every piece, lights every move, and thinks alongside you
219 parts1MIT - 2 layers131.8 × 131.8 mm
13738-Lumenati 4-pack panel.v10
embeddedos-org/eCAD-Hardware-Products
Hardware designs + EE docs + Board datasheets of Multiple products
553 parts8MIT - 2 layers72.4 × 55.9 mm
- 2 layers65.3 × 31.6 mm
Angle bottom
psychogenic/asic-necklace-pcbs
Schems and PCBs for Matt's awesome ASIC necklace, in collaboration with Adam Zeloof
60 parts2 - 2 layers80.2 × 80.2 mm
