Misc
About the Misc PCB
Misc is an open source AVR/Arduino PCB design by slgrobotics, published on GitHub. It is a 2-layer board measuring 99.1 × 99.1 mm, with 55 components from 29 distinct parts.
Its main chip is the ATMEGA328P-PU, from the AVR/Arduino family. Other key parts include the 74HC04, LM629 and 74HCT00. By type, the board carries 19 capacitors, 14 resistors, 6 connectors, 6 diodes, 5 ICs and 2 transistors.
From the project
Miscellaneous projects
Please visit my main project Wiki for more information.
Main components on the Misc
Misc bill of materials (BOM)
55 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA328P-PU | DIP-28_W7.62mm_LongPads | U1 |
| 1 | 74HC04 | DIP-14_W7.62mm_LongPads | U2 |
| 2 | LM629 | DIP-28_W15.24mm_LongPads | U3, U4 |
| 1 | 74HCT00 | DIP-14_W7.62mm_LongPads | U5 |
| 1 | 2N3906 | TO-92_Molded_Narrow | Q1 |
| 1 | 2N3904 | TO-92_Molded_Narrow | Q2 |
| 1 | 16MHz | Crystal_HC52-8mm_Vertical | Y1 |
| 1 | 8MHz | Crystal_HC52-8mm_Vertical | Y2 |
| 1 | — | Pin_Header_Straight_1x06_Pitch2.54mm | J1-Prog1 |
| 1 | — | bornier2 | J2 |
| 1 | — | Pin_Header_Straight_2x05_Pitch2.54mm | J3-Encoders1 |
| 2 | — | Pin_Header_Straight_2x04_Pitch2.54mm | J4, J5 |
| 1 | — | Pin_Header_Straight_1x04_Pitch2.54mm | J5-I2C1 |
| 1 | Reset | SW_PUSH_6mm | SW1 |
| 1 | 1N5817 | D_DO-35_SOD27_P10.16mm_Horizontal | D1 |
| 4 | 1N60P | D_DO-35_SOD27_P10.16mm_Horizontal | D2, D3, D5, D6 |
| 1 | LED | LED_D3.0mm | D4 |
| 7 | 0.1uF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C4, C5, C7, C10, C13 |
| 2 | 22uF | CP_Radial_D4.0mm_P1.50mm | C3, C6 |
| 3 | 22pF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C8, C9, C12 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 68pF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C11 |
| 6 | 10nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C14, C15, C16, C17, C18, C19 |
| 4 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R4, R5, R11 |
| 1 | 22K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 2 | 2K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R6 |
| 3 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R8, R9 |
| 1 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 2 | R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R13 |
| 1 | 10M | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14 |
Misc design files
The KiCad project lives in the slgrobotics/Misc repository on GitHub; these links point at the commit this page was built from.
Misc: common questions
What microcontroller does the Misc use?
The Misc is built around the ATMEGA328P-PU, from the AVR/Arduino family.
How big is the Misc PCB?
The Misc measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Misc?
55 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Misc design files?
From the slgrobotics/Misc repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Misc design in my own project?
The repository has no license, so all rights stay with slgrobotics. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Misc 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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