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4 layers178 × 72 mmTestSequencer, the printed circuit board in 3D

Various electronics projects.

Size
178 × 72 mm
Copper layers
4
Thickness
1.6 mm
Parts
88
Nets
36
Pads
215
Tracks, vias
490, 206
Pours
10
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
31 Aug 2019
Updated
29 Oct 2023

Overview

TestSequencer is an open-source printed circuit board by slugrustle, from the slugrustle/electronics repository on GitHub. It is a 4-layer board of 178 × 72 mm with 88 parts on 36 nets, routed with 490 tracks and 206 vias.

It is built around the IFX24401TE V50, KC5032A32.0000CMGE00 and 0685T1500-01, with the DF2S12FU,H3F, HHXA500ARA470MHA0G and PJ-102AH among its other parts. Its parts include 21 resistors, 14 capacitors, 12 switches, 10 ICs and 10 connectors. It belongs with the audio and music boards and the PIC boards of this library.

Main components

8

README

TestSequencer/README.md

Test Sequencer

This project surrounds an 8‑bit PIC microcontroller (PIC16F15324) with

  1. Power supply from a DC barrel jack with both ESD and reverse polarity protection. A 5V linear regulator runs the MCU and output buffers.
  2. A 32MHz external oscillator
  3. A 6p6c modular jack with ESD protection for ICSP programming with an ICD3 or ICD4
  4. 7 32mA capable logic‑level output buffers broken out to terminal blocks with ESD protection
  5. An input for a toggle switch or pushbutton broken out to a terminal block with ESD protection
  6. A slightly hacky but functional enclosure

After many times wanting to write some very basic assembly code to debounce a button and generate some simple logic‑level waveforms to control other equipment or directly interface with a circuit under test, I decided to build a board to serve this role.

The PIC16F15324 was chosen primarily out of familiarity but also for its reasonable specs and capability (relative to this application) and for having no serious errata.

Parts

88
QtyValueFootprintReferences
11DLP05LC-7-Ftest_sequencer:SOT-23TVS1, TVS2, TVS3, TVS4, TVS5, TVS6, TVS7, TVS10, TVS11, TVS12, TVS13
9100ntest_sequencer:C_0603_HandSolderingC1, C2, C6, C7, C8, C9, C10, C11, C13
8282837-2test_sequencer:282837-2J2, J3, J4, J5, J6, J7, J8, J9
710Rtest_sequencer:R_0603R1, R2, R5, R6, R9, R10, R13
747ktest_sequencer:R_0603R3, R4, R7, R8, R11, R12, R14
7NL17SZ17DFT2Gtest_sequencer:SC-70-5U2, U3, U4, U5, U6, U7, U8
6Screw_#2test_sequencer:Screw_#2S5, S6, S7, S8, S9, S10
6Screw_#4test_sequencer:Screw_#4S1, S2, S3, S4, S11, S12
5MountingBosstest_sequencer:MountingBossB1, B2, B3, B4, B5
322Rtest_sequencer:R_0603R17, R20, R21
210ktest_sequencer:R_0603R16, R19
210ntest_sequencer:C_0603_HandSolderingC12, C14
10438600002test_sequencer:0438600002J10
10685T1500-01test_sequencer:F_1206F1
110utest_sequencer:C_1206C5
11utest_sequencer:C_1206C4
12.4ktest_sequencer:R_0603R18
1220Rtest_sequencer:R_0603R15
1DF2S12FU,H3Ftest_sequencer:D_SOD-323_HandSolderingTVS9
1HHXA500ARA470MHA0Gtest_sequencer:HXA_HA0C3
1IFX24401TEV50test_sequencer:IFX24401TEVU1
1KC5032A32.0000CMGE00test_sequencer:KC5032A-CMU9
1PIC16F15324-E_SNtest_sequencer:SOIC-14_3.9x8.7mm_Pitch1.27mmU10
1PJ-102AHtest_sequencer:PJ-102AHJ1
1PMEG60T10ELPXtest_sequencer:SOD-128D1
1SD05-7test_sequencer:D_SOD-323_HandSolderingTVS8
1SMAJ15CAtest_sequencer:D_SMA_BidirD2

Questions

How big is the TestSequencer PCB?

It measures 178 × 72 mm and has 4 copper layers, 1.6 mm thick.

What parts does the TestSequencer use?

88 parts, built around the IFX24401TE V50, KC5032A32.0000CMGE00, 0685T1500-01 and DF2S12FU,H3F. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the TestSequencer KiCad files?

From the slugrustle/electronics repository on GitHub, at the commit this page was made from: the board is TestSequencer/TestSequencer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the TestSequencer design in my own project?

Its repository states no licence, so its author keeps all rights: ask slugrustle before reusing the design.

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