4 layers50 × 46.1 mm
2 layers73.2 × 55.1 mm
Kitchen Timer
gerisd/PCBPCB Hardware Design
- Size
- 73.2 × 55.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 46
- Pads
- 119
- Tracks, vias
- 332, 6
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Aug 2020
- Updated
- 4 Aug 2020
Overview
Kitchen Timer is an open-source printed circuit board by gerisd, from the gerisd/PCB repository on GitHub. It is a 2-layer board of 73.2 × 55.1 mm with 24 parts on 46 nets, routed with 332 tracks and 6 vias.
It is built around the ATMEGA32U4-AU and HDSP-B04E. Its parts include 11 resistors, 3 capacitors, 3 switches, 2 ICs and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdPCB
PCB Hardware Design
Overview
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 300Ω | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R4, R5, R6, R7, R8, R9, R10, R11 |
| 3 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2, SW3 |
| 2 | 12-22pF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2 |
| 2 | 22Ω | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R2 |
| 1 | 100Ω | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R3 |
| 1 | 1μF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C3 |
| 1 | ATmega32U4-AU | Package_QFP:TQFP-44_10x10mm_P0.8mm | U1 |
| 1 | AVR-ISP-6 | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J2 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Crystal | Crystal:Crystal_SMD_HC49-SD_HandSoldering | Y1 |
| 1 | HDSP-B04E | Display_7Segment:CA56-12CGKWA | U2 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_GCT_USB3076-30-A | J1 |
Questions
How big is the Kitchen Timer PCB?
It measures 73.2 × 55.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Kitchen Timer use?
24 parts, built around the ATMEGA32U4-AU and HDSP-B04E. 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 Kitchen Timer KiCad files?
From the gerisd/PCB repository on GitHub, at the commit this page was made from: the board is Kitchen Timer/Timer/Kitchen Timer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Kitchen Timer design in my own project?
Its repository states no licence, so its author keeps all rights: ask gerisd before reusing the design.
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