2 layers293.4 × 80.5 mm
2 layers72 × 144.5 mm
I2cpanel.unrouted
QUniBone/Hardware2Design files to produce UniBone / QBone hardware
- Size
- 72 × 144.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 302
- Nets
- 69
- Pads
- 482
- Tracks, vias
- 37, 0
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 30 Jul 2026
- Updated
- 30 Jul 2026
Overview
I2cpanel.unrouted is an open-source printed circuit board by QUniBone, from the QUniBone/Hardware repository on GitHub, published under the BSD-2-Clause licence. It is a 2-layer board of 72 × 144.5 mm with 302 parts on 69 nets, routed with 37 tracks and 0 vias.
It is built around the MCP23017-E/SS and ULN2803A. Its parts include 20 connectors, 10 capacitors, 8 resistors, 4 ICs and 1 switch.
Main components
2
MCP23017-E/SS
SSOP-28(5.3x10.2x0.65)-40℃~+125℃ 1.7MHz 1.8V~5.5V 16 1uA 600mV 8 8mA I2C Interrupt Output Reset function、Cascading and address extension SSOP-28 I/O Expanders ROHSMicrochip TechnologyI/O Expanders
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
README
README.mdHardware
Design files to produce UniBone / QBone hardware
Parts
302| Qty | Value | Footprint | References |
|---|---|---|---|
| 252 | jh:Lochraster_Square_breit | _190226133706_0, _190226133706_1, _190226133706_10, _190226133706_11, _190226133706_100, _190226133706_101, _190226133706_102, _190226133706_103, _190226133706_104, _190226133706_105, _190226133706_106, _190226133706_107, _190226133706_108, _190226133706_109, _190226133706_110, _190226133706_111 +236 | |
| 4 | 100nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2, C3, C8, C9 |
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | HOLE1, HOLE2, HOLE3, HOLE4 |
| 3 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R5 |
| 3 | L or R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6, R7, R8 |
| 2 | 2K-10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 2 | 470uF | Capacitor_THT:C_Radial_D10.0mm_H20.0mm_P5.00mm | C7, C10 |
| 2 | ?pF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C4, C5 |
| 2 | MCP23017 | Package_DIP:DIP-28_W7.62mm_Socket | U2, U4 |
| 2 | ULN2803A | Package_DIP:DIP-18_W7.62mm_Socket | U1, U3 |
| 1 | 100uF | Capacitor_THT:C_Radial_D6.3mm_H11.0mm_P2.50mm | C1 |
| 1 | 5Vpatch | Connector_Wire:SolderWirePad_1x02_P5.08mm_Drill1.5mm | J19 |
| 1 | ?nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C6 |
| 1 | A0 RL0-LOAD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | A1 RL0-RDY | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | A2 RL0-FAULT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | A3 RL0-WPROT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | A4 RL1-LOAD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | A5 RL1-RDY | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | A6 RL1-FAULT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J7 |
| 1 | A7 RL1-WPROT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J8 |
| 1 | ADDRSEL | Button_Switch_THT:SW_DIP_SPSTx02_Slide_9.78x7.26mm_W7.62mm_P2.54mm | SW1 |
| 1 | B0 RL2-LOAD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J10 |
| 1 | B1 RL2-RDY | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J11 |
| 1 | B2 RL2-FAULT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J12 |
| 1 | B3 RL2-WPROT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J13 |
| 1 | B4 RL3-LOAD | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J14 |
| 1 | B5 RL3-RDY | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J15 |
| 1 | B6 RL3-FAULT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J16 |
| 1 | B7 RL3-WPROT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J17 |
| 1 | I2C IN | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J9 |
| 1 | I2C OUT | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J18 |
| 1 | TERM_RESET | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 1 | TERM_SCL | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | TERM_SDA | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | VLAMPpatch | Connector_Wire:SolderWirePad_1x02_P5.08mm_Drill1.5mm | J20 |
Questions
How big is the I2cpanel.unrouted PCB?
It measures 72 × 144.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the I2cpanel.unrouted use?
302 parts, built around the MCP23017-E/SS and ULN2803A. 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 I2cpanel.unrouted KiCad files?
From the QUniBone/Hardware repository on GitHub, at the commit this page was made from: the board is panel_rl02/i2cpanel.unrouted.kicad_pcb and its schematic unibone/DS8641.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the I2cpanel.unrouted design in my own project?
Its repository publishes it under the BSD-2-Clause 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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