Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

Show off your projects you are working on. Talk about designs or ideas, ask technical questions, and share technical information.

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Tired of Excel and clunky BOM tools, I built a modern parts manager (PartSense)

Started by loic_daigle on 25 Jul, 2026 02:38

Views: 405, Replies: 0
OpenEastTester - Open-source controller for East Tester (ET4*) LCR meters

Started by kryz on 02 Jul, 2026 17:40
Last post by jheissjr on 24 Jul, 2026 23:58

Views: 2002, Replies: 19
Connector suggestion

Started by lichurbagan on 24 Jul, 2026 14:31
Last post by lichurbagan on 24 Jul, 2026 22:18

Views: 495, Replies: 4
KEITHLEY 2001 Display Substitute

Started by Le_Bassiste on 31 May, 2018 18:38
Last post by TRN on 24 Jul, 2026 13:01

Views: 24777, Replies: 44
radiometer vintage blood analyser from 1970 teardown

Started by oz2cpu on 24 Jul, 2026 08:25

Views: 226, Replies: 0
Devices that support the Sony SLVS-EC sensor interface

Started by Spirit532 on 22 May, 2023 23:24
Last post by James Anderson on 24 Jul, 2026 03:56

Views: 2943, Replies: 4
Review Request: RP2350 board for Ikea Kallsup swap

Started by JamesMerry on 23 Jul, 2026 17:12
Last post by booscrawl on 23 Jul, 2026 23:49

Views: 466, Replies: 1
Extreme cable length signaling

Started by tatteredsocks on 06 Feb, 2025 16:52
Last post by jonpaul on 23 Jul, 2026 11:24

Views: 5195, Replies: 33
FRAM Card for HP8590 Series - Project

Started by Miti on 15 Dec, 2025 03:35
Last post by dinix on 23 Jul, 2026 11:15

Views: 8962, Replies: 47
Project: ESP32-S3 GPS Tracker using Reyax RYS352A GNSS Module

Started by akshay.jain on 16 Jul, 2026 06:03
Last post by HelenaFairchild on 23 Jul, 2026 09:38

Views: 543, Replies: 2
Modular access system with fingerprint reader for an existing solid front door

Started by Greybeard on 11 Jul, 2026 14:46
Last post by jc101 on 23 Jul, 2026 06:40

Views: 1243, Replies: 18
NEMA34, PLC, and PIC16F887

Started by f0raster0 on 21 Jul, 2026 22:16
Last post by f0raster0 on 23 Jul, 2026 01:14

Views: 344, Replies: 1
Programmable power supply 0–50 volts

Started by Aleksei_SU on 22 Jul, 2026 12:37

Views: 466, Replies: 0
Practical DFM checklist for a first BGA prototype

Started by PCBA Partner on 17 Jul, 2026 22:14
Last post by free_electron on 22 Jul, 2026 04:21

Views: 635, Replies: 5
Rotary phase converters, transformers and a different approach to DIY UK RPCs?

Started by BigLatheMan on 21 Jul, 2026 19:51

Views: 401, Replies: 0
Bendix AV8OR GPS

Started by ee753 on 20 Jul, 2026 17:04
Last post by Kilrah on 21 Jul, 2026 09:17

Views: 394, Replies: 3
High-speed Op-Amp oscillation at 45MHz — Need fresh eyes on this layout

Started by meoly on 20 Jul, 2026 06:04
Last post by sourcecharge on 20 Jul, 2026 21:58

Views: 765, Replies: 6
TinySine AudioB I2S V4 connects over Bluetooth but plays no audio and disconnect

Started by Oliver Yiacas on 20 Jul, 2026 18:44

Views: 236, Replies: 0
Need BIOS dump for MAXSUN Terminator B550M V2

Started by syscon on 20 Jul, 2026 11:31

Views: 300, Replies: 0
Testing Buffer for SAR ADC Ref Input

Started by Andree Henkel on 16 Jul, 2026 09:57
Last post by Andree Henkel on 20 Jul, 2026 09:15

Views: 1073, Replies: 8
Need help finding equivalents/datasheets for PMI416, PMI418, PMI434 ICs

Started by wb0gaz on 19 Jul, 2026 20:31
Last post by wb0gaz on 19 Jul, 2026 22:32

Views: 305, Replies: 2
Universal 10x10-Channel Complementary MOSFET Driver Board

Started by x_name41 on 19 Jul, 2026 14:11
Last post by PGPG on 19 Jul, 2026 18:31

Views: 601, Replies: 2
Efficient Programmable LED Flashlight with High-Intensity Scan Matrix

Started by x_name41 on 19 Jul, 2026 17:32

Views: 498, Replies: 0
Computer USB Sound Card / Guitar-to-PC Audio Interface

Started by Westted on 18 Jul, 2026 23:13
Last post by Westted on 19 Jul, 2026 15:59

Views: 398, Replies: 2
LTSpice LT5400 Oddity

Started by TylerPeppy on 18 Jul, 2026 17:29
Last post by TylerPeppy on 19 Jul, 2026 12:06

Views: 877, Replies: 10
RINGER FOR TEAMS

Started by LaserSteve on 16 Jul, 2026 14:15
Last post by mikerj on 18 Jul, 2026 11:47

Views: 631, Replies: 4
Utility locator design

Started by antenna on 17 Jun, 2025 23:18
Last post by antenna on 18 Jul, 2026 06:17

Views: 2134, Replies: 10
LED voltage reference with passive oven

Started by ElectronSurf on 11 Jun, 2026 06:56
Last post by Kleinstein on 17 Jul, 2026 12:19

Views: 4162, Replies: 41
Data for ELEC-TROL 1980's solid state relays wanted

Started by adinsen on 14 Jul, 2026 14:17
Last post by adinsen on 16 Jul, 2026 20:17

Views: 700, Replies: 6
Control Systems Simulator

Started by Picuino on 10 Jul, 2026 12:04
Last post by Picuino on 16 Jul, 2026 19:49

Views: 1890, Replies: 16
LED display for HP 3457A multimeter - I did it :-)

Started by xi on 10 Nov, 2017 02:07
Last post by bungle on 16 Jul, 2026 18:34

Views: 80362, Replies: 153
Microcontroller resetting only at high temperatures - Thermal issue or decouplin

Started by James Anderson on 16 Jul, 2026 03:06
Last post by voltsandjolts on 16 Jul, 2026 12:15

Views: 615, Replies: 5
Datasheet for LED drivers FM6363C and FM6565C

Started by up8051 on 28 Mar, 2025 13:41
Last post by ariken on 16 Jul, 2026 11:15

Views: 4150, Replies: 17
Lithium ion packs without balancing

Started by BradC on 12 Feb, 2022 11:32
Last post by BradC on 16 Jul, 2026 06:00

Views: 6048, Replies: 15
Speaker to Line Level with Resistor Divider

Started by Obsidianxenon on 15 Jul, 2026 23:13
Last post by Obsidianxenon on 16 Jul, 2026 01:46

Views: 554, Replies: 6
One shed a light on market's mid, best price of on-board LCR meter

Started by marhuum on 14 Jul, 2026 03:37
Last post by coromonadalix on 16 Jul, 2026 01:04

Views: 537, Replies: 5
implementing Kramers–Kronig causality check on real VNA s-p0arams

Started by john23 on 15 Jul, 2026 19:09
Last post by ejeffrey on 15 Jul, 2026 19:39

Views: 278, Replies: 1
10-pin USB Mini B connector

Started by ee753 on 15 Jul, 2026 04:27
Last post by ejeffrey on 15 Jul, 2026 15:02

Views: 542, Replies: 4
causality Kramers-Kronig relations in python

Started by john23 on 14 Jul, 2026 19:26
Last post by eutectique on 15 Jul, 2026 13:11

Views: 347, Replies: 1
Redesigned ATmega328P I2C Board (Layout Feedback Welcomed)

Started by Abdullah on 15 Jul, 2026 09:08
Last post by Abdullah on 15 Jul, 2026 12:27

Views: 309, Replies: 2

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Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

Tired of Excel and clunky BOM tools, I built a modern parts manager (PartSense)

OpenEastTester - Open-source controller for East Tester (ET4*) LCR meters

Connector suggestion

KEITHLEY 2001 Display Substitute

radiometer vintage blood analyser from 1970 teardown

Devices that support the Sony SLVS-EC sensor interface

Review Request: RP2350 board for Ikea Kallsup swap

Extreme cable length signaling

FRAM Card for HP8590 Series - Project

Project: ESP32-S3 GPS Tracker using Reyax RYS352A GNSS Module

Modular access system with fingerprint reader for an existing solid front door

NEMA34, PLC, and PIC16F887

Programmable power supply 0–50 volts

Practical DFM checklist for a first BGA prototype

Rotary phase converters, transformers and a different approach to DIY UK RPCs?

Bendix AV8OR GPS

High-speed Op-Amp oscillation at 45MHz — Need fresh eyes on this layout

TinySine AudioB I2S V4 connects over Bluetooth but plays no audio and disconnect

Need BIOS dump for MAXSUN Terminator B550M V2

Testing Buffer for SAR ADC Ref Input

Need help finding equivalents/datasheets for PMI416, PMI418, PMI434 ICs

Universal 10x10-Channel Complementary MOSFET Driver Board

Efficient Programmable LED Flashlight with High-Intensity Scan Matrix

Computer USB Sound Card / Guitar-to-PC Audio Interface

LTSpice LT5400 Oddity

RINGER FOR TEAMS

Utility locator design

LED voltage reference with passive oven

Data for ELEC-TROL 1980's solid state relays wanted

Control Systems Simulator

LED display for HP 3457A multimeter - I did it :-)

Microcontroller resetting only at high temperatures - Thermal issue or decouplin

Datasheet for LED drivers FM6363C and FM6565C

Lithium ion packs without balancing

Speaker to Line Level with Resistor Divider

One shed a light on market's mid, best price of on-board LCR meter

implementing Kramers–Kronig causality check on real VNA s-p0arams

10-pin USB Mini B connector

causality Kramers-Kronig relations in python

Redesigned ATmega328P I2C Board (Layout Feedback Welcomed)

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