Ymp2
Elektroniikkakerho·Led-merkki·kicad/ymp/ymp2.kicad_pcb
About the Ymp2 PCB
Ymp2 is an open source AVR/Arduino PCB design by Elektroniikkakerho, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 70.4 × 47 mm, with 42 components from 7 distinct parts.
Its main chip is the ATTINY861-S, from the AVR/Arduino family. By type, the board carries 32 diodes, 4 resistors, 3 connectors, 1 IC, 1 fuse and 1 capacitor.
From the project
Haalarimerkki sinisellä ledisalamalla!
Levyyn on myös suunniteltu kytkin, jolla voisi vaikka sammuttaa laitteen tai toimittaa muuta toiminnallisuutta, mutta näitä ei ole koodissa toteutettu vieläkään.
Kuusipinninen liitin on ohjelmointia varten ja sitä kautta ohjelma siirretääm mikrokontrollerille. Ohjelmointi hoituu Arduinon ISP:n kautta.
Nyt kun sinulla on piirilevy, laitetaampa siihen komponentit kiinni.

Main components on the Ymp2
Ymp2 bill of materials (BOM)
42 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATTINY861-S | SO-20_12.8x7.5mm_P1.27mm_extended | IC1 |
| 1 | CONN_6 | Ohjelmointiliitin | P1 |
| 2 | CONN_2 | PinSocket_1x02_P2.54mm_Horizontal | P2, P3 |
| 1 | Polyfuse | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | F1 |
| 32 | LED | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +24 |
| 1 | CP1 | CP_EIA-6032-15_Kemet-U_Pad2.25x2.35mm_HandSolder | C1 |
| 4 | 110 | R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R1, R2, R3, R4 |
Ymp2 design files
The KiCad project lives in the Elektroniikkakerho/Led-merkki repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/ymp/ymp2.kicad_pcb
Ymp2: common questions
What microcontroller does the Ymp2 use?
The Ymp2 is built around the ATTINY861-S, from the AVR/Arduino family.
How big is the Ymp2 PCB?
The Ymp2 measures 70.4 × 47 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ymp2?
42 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Ymp2 design files?
From the Elektroniikkakerho/Led-merkki repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Ymp2 design in my own project?
Yes, under the terms of its GPL-3.0 license, which Elektroniikkakerho chose for the repository.
Can I test firmware for the Ymp2 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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