

Max232-adapter
Random things related to electronics
- Size
- 59.4 × 34.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 20
- Pads
- 47
- Tracks, vias
- 71, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Feb 2020
- Updated
- 2 Nov 2026
Overview
Max232-adapter is an open-source printed circuit board by okoz, from the okoz/electronics repository on GitHub. It is a 2-layer board of 59.4 × 34.4 mm with 10 parts on 20 nets, routed with 71 tracks and 4 vias.
It is built around the MAX232N. Its parts include 5 capacitors, 2 connectors and 1 IC. It belongs with the interfaces and adapters boards of this library.
Main components
1README
flip-flop/README.mdFlip-Flop
Storage for 1-bit of information but only when it's sunny:

Here are some photos half way through assembly along with a screenshot from KiCad. Behold the red solder mask! This is the first board I've ever etched.
| Front | PCB | Back |
|---|---|---|
![]() | ![]() | ![]() |
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1, C2, C3, C4, C5 |
| 2 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP2 |
| 1 | Conn_01x06_Female | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | DB9_Female | Connector_Dsub:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset9.90mm_Housed_MountingHolesOffset11.32mm | J2 |
| 1 | MAX232 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U1 |
Questions
How big is the Max232-adapter PCB?
It measures 59.4 × 34.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Max232-adapter use?
10 parts, built around the MAX232N. 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 Max232-adapter KiCad files?
From the okoz/electronics repository on GitHub, at the commit this page was made from: the board is max232-adapter/max232-adapter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Max232-adapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask okoz before reusing the design.
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