2 layers95 × 55 mm
2 layers101.6 × 61 mm
Maxx io
sjm42/electronicsVarious electronics projects
- Size
- 101.6 × 61 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 150
- Pads
- 427
- Tracks, vias
- 974, 36
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 13 Mar 2018
- Updated
- 16 Aug 2024
Overview
Maxx io is an open-source printed circuit board by sjm42, from the sjm42/electronics repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 101.6 × 61 mm with 48 parts on 150 nets, routed with 974 tracks and 36 vias.
It is built around the ULN2803A and PCA9555PW. Its parts include 18 connectors, 12 ICs, 7 resistors, 4 capacitors and 1 diode.
Main components
2
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
PCA9555PW
TSSOP-24-40℃~+85℃ 1.1uA 16 2.3V~5.5V 3mA 400kHz 8 I2C、SMBus Interrupt Output Reset function、Cascade and address expansion TSSOP-24 I/O Expanders ROHSNXP SemiconductorsI/O Expanders
README
README.mdElectronics
My various electronics projects
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | Conn_01x09_Male | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J1A0, J1A1, J1B0, J1B1, J2A0, J2A1, J2B0, J2B1, J3A0, J3A1, J3B0, J3B1, J4A0, J4A1, J4B0, J4B1 |
| 8 | ULN2803A | 00local:SOP-18_7x12.5mm_P1.27mm | U5, U6, U7, U8, U9, U10, U11, U12 |
| 4 | 10u | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C1, C2, C3, C4 |
| 4 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R7 |
| 4 | Conn_01x01_Female | MountingHole:MountingHole_3.2mm_M3_ISO14580_Pad | H1, H2, H3, H4 |
| 4 | PCA9555PW | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U1, U2, U3, U4 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5, R6 |
| 2 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1, J2 |
| 1 | Conn_01x02 | 00local:TerminalBlock_bornier-2_P5.08mm | JP1 |
| 1 | Conn_01x03_Male | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | A2 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | LED1 |
Questions
How big is the Maxx io PCB?
It measures 101.6 × 61 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Maxx io use?
48 parts, built around the ULN2803A and PCA9555PW. 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 Maxx io KiCad files?
From the sjm42/electronics repository on GitHub, at the commit this page was made from: the board is maxx-io/maxx-io.kicad_pcb and its schematic blink-timer/blink-timer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Maxx io design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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