HardLabs

Amplifier board

marekpechal·projects-efnmr·kicad/amplifier_board/arduino_shield/amplifier_board.kicad_pcb

Amplifier board layout, top view — open source AVR/Arduino board by marekpechal

About the Amplifier board

Amplifier board is an open source AVR/Arduino PCB design by marekpechal, published on GitHub. It is a 2-layer board measuring 91 × 56 mm, with 24 components from 8 distinct parts.

Its main chip is the Arduino_Mega2560_R3_Shield, from the AVR/Arduino family. Other key parts include the OPA209, TL331 and SFH617A-3X017T. By type, the board carries 10 resistors, 8 capacitors, 3 ICs, 2 diodes and 1 module.

It belongs with the audio designs in this gallery.

Main components on the Amplifier board

OPA209TL331SFH617A-3X017TArduino_Mega2560_R3_Shield

Amplifier board bill of materials (BOM)

24 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OPA209
U1
1
TL331
OPA209
U2
1
SFH617A-3X017T
OPA209
U3
1
Arduino_Mega2560_R3_Shield
A1
2
RB751V40T1G
D1, D2
6
100n 25V X7R
C1, C2, C3, C4, C5, C6
2
TBD
C7, C8
10
TBD
R1, R2, R3, R4, R5, R6, R7, R8 +2

Amplifier board design files

The KiCad project lives in the marekpechal/projects-efnmr repository on GitHub; these links point at the commit this page was built from.

Amplifier board: common questions

What microcontroller does the Amplifier board use?

The Amplifier board is built around the Arduino_Mega2560_R3_Shield, from the AVR/Arduino family.

How big is the Amplifier board?

The Amplifier board measures 91 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Amplifier board?

24 components, from 8 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Amplifier board design files?

From the marekpechal/projects-efnmr repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Amplifier board design in my own project?

The repository has no license, so all rights stay with marekpechal. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Amplifier board 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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