Kha main
About the Kha main PCB
Kha main is an open source PCB design by kiu, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 50 × 53 mm, with 17 components from 14 distinct parts.
Other key parts include the AVR64DD32, SP481E and AP63205WU. By type, the board carries 7 capacitors, 4 connectors, 3 ICs, 1 fuse, 1 inductor and 1 resistor.
From the project
Overengineered Modular RS-485 Multi-Master 19" Subrack Home Automation / Control
Main components on the Kha main
Kha main bill of materials (BOM)
17 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AVR64DD32 | TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | SP481E | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | AP63205WU | TSOT-23-6 | U3 |
| 1 | Conn_01x03 | TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J1 |
| 1 | AVR-UPDI-6 | eAVR6-UPDI-F | J2 |
| 2 | RJ45_Shielded | GDLX-S-88K | J3, J4 |
| 1 | Polyfuse | Fuse_0805_2012Metric | F1 |
| 1 | 4.7uH | L_1210_3225Metric | L1 |
| 1 | 10nF | C_0805_2012Metric | C1 |
| 3 | 100nF | C_0805_2012Metric | C2, C3, C4 |
| 1 | 10uF | C_0805_2012Metric | C5 |
| 1 | 47uF | C_1210_3225Metric | C6 |
| 1 | 220uF | CP_EIA-6032-28_Kemet-C | C7 |
| 1 | R | R_0805_2012Metric | R1 |
Kha main design files
The KiCad project lives in the kiu/kha repository on GitHub; these links point at the commit this page was built from.
Kha main: common questions
How big is the Kha main PCB?
The Kha main measures 50 × 53 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Kha main?
17 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Kha main design files?
From the kiu/kha repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Kha main design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
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