Roaster
About the Roaster PCB
Roaster is an open source AVR/Arduino PCB design by eblade, published on GitHub. It is a 2-layer board measuring 87.4 × 66.8 mm, with 26 components from 22 distinct parts.
Its main chip is the ATmega328P-PU, from the AVR/Arduino family. By type, the board carries 7 connectors, 5 capacitors, 4 resistors, 3 switches, 3 diodes and 1 IC.
It belongs with the audio designs in this gallery.
From the project
Synth stuff
Main components on the Roaster
Roaster bill of materials (BOM)
26 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATmega328P-PU | DIP-28_W7.62mm | U1 |
| 1 | 16MHz | Crystal_HC18-U_Vertical | Y1 |
| 1 | PWR_IN | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | SPI | PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | DISP | PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | UART | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | THERM | PinHeader_1x05_P2.54mm_Vertical | J5 |
| 1 | FAN | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | HEAT | PinHeader_1x04_P2.54mm_Vertical | J7 |
| 1 | 100K_VAL | Potentiometer_Alps_RK09L_Single_Vertical | RV1 |
| 1 | 100K_PAR | Potentiometer_Alps_RK09L_Single_Vertical | RV2 |
| 1 | SW_RST | SW_PUSH_6mm_H4.3mm | SW1 |
| 1 | SW_STOP_MODE | SW_PUSH_6mm_H4.3mm | SW2 |
| 1 | SW_START_SET | SW_PUSH_6mm_H4.3mm | SW3 |
| 1 | PWR | LED_D3.0mm | D1 |
| 1 | 5.1V | D_A-405_P7.62mm_Horizontal | D2 |
| 1 | RUN | LED_D3.0mm | D3 |
| 3 | 15p | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C5 |
| 2 | 22p | C_Disc_D3.0mm_W1.6mm_P2.50mm | C3, C4 |
| 2 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R4 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4k7 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 330 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
Roaster design files
The KiCad project lives in the eblade/synth repository on GitHub; these links point at the commit this page was built from.
- Layoutroaster/roaster.kicad_pcb
- Schematicroaster/roaster.kicad_sch
Roaster: common questions
What microcontroller does the Roaster use?
The Roaster is built around the ATmega328P-PU, from the AVR/Arduino family.
How big is the Roaster PCB?
The Roaster measures 87.4 × 66.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Roaster?
26 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Roaster design files?
From the eblade/synth repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Roaster design in my own project?
The repository has no license, so all rights stay with eblade. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Roaster 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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