HardLabs

TruthTable

attoparsec·TruthTable

TruthTable PCB layout, top view — open source board by attoparsec

About the TruthTable PCB

TruthTable is an open source PCB design by attoparsec, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 20 × 110 mm, with 25 components from 9 distinct parts.

Other key parts include the 74HC14, 74LS153 and L7805. By type, the board carries 8 switches, 4 diodes, 4 resistors, 3 ICs, 1 connector and 1 capacitor.

It belongs with the audio designs in this gallery.

From the project

Eurorack Truth Table module

Full description: https://youtu.be/MvsgOZwyrD4

Main components on the TruthTable

74HC1474LS153L7805

TruthTable bill of materials (BOM)

25 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HC14
U1
1
74LS153
U2
1
L7805
U3
1
Conn_02x05_Odd_Even
J1
4
PJ301
IN_1, IN_2, OUT_1, OUT_2
8
SW_SPDT
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
4
D
D1, D2, D3, D4
1
22U
C1
4
1K
R1, R2, R3, R4

TruthTable design files

The KiCad project lives in the attoparsec/TruthTable repository on GitHub; these links point at the commit this page was built from.

TruthTable: common questions

How big is the TruthTable PCB?

The TruthTable measures 20 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TruthTable?

25 components, from 9 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 TruthTable design files?

From the attoparsec/TruthTable repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the TruthTable design in my own project?

Yes, under the terms of its CC0-1.0 license, which attoparsec chose for the repository.

Similar boards