2 layers84.5 × 81.9 mm
2 layers84.5 × 62.9 mm
Interrupter
Caraffa-git/SD-Interrupter1MIDI/SD Tesla coil interrupter
- Size
- 84.5 × 62.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 57
- Pads
- 174
- Tracks, vias
- 231, 29
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 4 Oct 2023
- Updated
- 26 Feb 2025
Overview
Interrupter is an open-source printed circuit board by Caraffa-git, from the Caraffa-git/SD-Interrupter repository on GitHub, published under the MIT licence. It is a 2-layer board of 84.5 × 62.9 mm with 43 parts on 57 nets, routed with 231 tracks and 29 vias.
It is built around the ATMEGA328PB-AU. Its parts include 13 resistors, 7 capacitors, 5 ICs, 5 switches and 4 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdTesla coil MIDI interrupter
It's modified version of OneTesla SD interrupter. To compile original software you have to install SdFat v1.1.4 library.
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1k | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5, R6, R7, R8 |
| 3 | 2k | Resistor_SMD:R_0805_2012Metric | locked, R10, R11 |
| 3 | 47uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C1, C2, C3 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R9 |
| 2 | 18pF | Capacitor_SMD:C_0805_2012Metric | C6, C7 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 1N4148 | Diode_SMD:D_SOD-123 | D1 |
| 1 | 220R | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 3.3k | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 4N25 | Package_DIP:DIP-6_W7.62mm | U5 |
| 1 | AP1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | AP1117-50 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | ATmega328PB-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U4 |
| 1 | AVR-ISP-6 | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J3 |
| 1 | BL | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 1 | Crystal | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | DIN-5 | w_conn_av:din-5 | J4 |
| 1 | DN_SW | Button_Switch_THT:SW_PUSH_6mm_H7.3mm | SW4 |
| 1 | IFE91A | IFE91A:OPTO-TRANSMITTER | U3 |
| 1 | Jack-DC | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | MAIN_SW | Switch:Switch 12x6mm | SW1 |
| 1 | Micro_SD_Card_Det | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J2 |
| 1 | OK_SW | Button_Switch_THT:SW_PUSH_6mm_H7.3mm | SW5 |
| 1 | OUT_SW | Switch:Switch 12x6mm | SW2 |
| 1 | UP_SW | Button_Switch_THT:SW_PUSH_6mm_H7.3mm | SW3 |
| 1 | WC1602A | Display:WC1602A | DS1 |
Questions
How big is the Interrupter PCB?
It measures 84.5 × 62.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Interrupter use?
43 parts, built around the ATMEGA328PB-AU. 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 Interrupter KiCad files?
From the Caraffa-git/SD-Interrupter repository on GitHub, at the commit this page was made from: the board is hardware/smd/interrupter.kicad_pcb and its schematic hardware/smd/interrupter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Interrupter design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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