HardLabs

Digi pot

mar0x·pq-4·digi_pot/digi_pot.kicad_pcb

Digi pot PCB layout, top view — open source AVR/Arduino board by mar0x

About the Digi pot PCB

Digi pot is an open source AVR/Arduino PCB design by mar0x, published on GitHub. It is a 4-layer board measuring 30 × 30 mm, with 25 components from 11 distinct parts.

Its main chip is the ATmega328P-AU, from the AVR/Arduino family. Other key parts include the AD5262. By type, the board carries 11 resistors, 6 connectors, 5 capacitors, 2 ICs and 1 switch.

From the project

BOSS PQ-4 Parametric Equalizer replica

Main components on the Digi pot

ATmega328P-AUAD5262

Digi pot bill of materials (BOM)

25 components, 11 distinct parts.

QtyPartRefs
1
ATmega328P-AU
U1
1
AD5262
U2
1
Conn_01x08_Male
J1
2
Conn_01x06_Male
J2, J5
2
Conn_01x03_Male
J3, J4
1
Conn_01x01_Male
J6
1
Rotary_Encoder
SW1
4
0.1u
C1, C2, C3, C5
1
10u
C4
4
220
R1, R2, R3, R4
7
30k
R5, R6, R7, R8, R9, R10, R11

Digi pot design files

The KiCad project lives in the mar0x/pq-4 repository on GitHub; these links point at the commit this page was built from.

Digi pot: common questions

What microcontroller does the Digi pot use?

The Digi pot is built around the ATmega328P-AU, from the AVR/Arduino family.

How big is the Digi pot PCB?

The Digi pot measures 30 × 30 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Digi pot?

25 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Digi pot design files?

From the mar0x/pq-4 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Digi pot design in my own project?

The repository has no license, so all rights stay with mar0x. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Digi pot 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.

More boards in pq-4

Similar boards