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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RS485 Modbus - LG Heat Pump

Started by Blackgar on 11 Dec, 2022 12:05

Views: 1265, Replies: 0
LM1117 Priority OR Circuit

Started by hal9001 on 10 Dec, 2022 11:45
Last post by hal9001 on 11 Dec, 2022 11:21

Views: 4679, Replies: 6
Tektronix 11801c trigger

Started by cncjerry on 10 Dec, 2022 08:52
Last post by cncjerry on 11 Dec, 2022 05:01

Views: 1193, Replies: 2
Who makes and where to buy USB Audio chips?

Started by eV1Te on 09 Dec, 2018 12:36
Last post by jonpaul on 11 Dec, 2022 03:14

Views: 27885, Replies: 30
Suggestions for 24 VAC totalizer (event counter)

Started by calzap on 10 Dec, 2022 18:54
Last post by calzap on 11 Dec, 2022 01:46

Views: 999, Replies: 3
Anritsu MS2721B portable spectrum analyzer repair

Started by nexus on 10 Dec, 2022 23:11

Views: 1059, Replies: 0
the replacement 555 they don't want you to know about

Started by Terry Bites on 10 Dec, 2022 15:27
Last post by coromonadalix on 10 Dec, 2022 21:59

Views: 1821, Replies: 6
toslink (s/pdif) mixer

Started by duck on 13 Jul, 2018 19:31
Last post by cncjerry on 10 Dec, 2022 16:47

Views: 13266, Replies: 21
Picking apart a couple old schematics

Started by metertech58761 on 09 Dec, 2022 05:35
Last post by jwet on 10 Dec, 2022 15:43

Views: 1838, Replies: 7
PSU with discrete components. Any tips for CC control.

Started by Avelino Sampaio on 06 Oct, 2022 16:26
Last post by Avelino Sampaio on 10 Dec, 2022 13:54

Views: 15220, Replies: 44
Surge supression for phase to neutral shorts

Started by Thermoelectric on 09 Dec, 2022 11:02
Last post by Thermoelectric on 10 Dec, 2022 12:59

Views: 3097, Replies: 13
MCP1702-5002 LDO High Quiescent Current

Started by embed4 on 08 Dec, 2022 16:35
Last post by iMo on 10 Dec, 2022 10:06

Views: 2790, Replies: 11
Speaker magnet direction?

Started by Roberts_Curiosity on 10 Dec, 2022 03:47
Last post by Kokoriantz on 10 Dec, 2022 04:31

Views: 1756, Replies: 2
What kind of connector does Lego WeDo 2.0 use?

Started by Phoxtane on 12 Feb, 2018 05:28
Last post by spostma on 09 Dec, 2022 21:27

Views: 5008, Replies: 1
Negative LDOs with high PSRR?

Started by SiliconWizard on 07 Dec, 2022 04:40
Last post by edavid on 09 Dec, 2022 21:00

Views: 12071, Replies: 28
What´s the purpose of the white gunk?

Started by arildj78 on 02 Dec, 2022 00:15
Last post by T3sl4co1l on 09 Dec, 2022 19:33

Views: 11351, Replies: 29
voltage limit of ceramic capacitors

Started by Simon on 07 Dec, 2022 22:23
Last post by Simon on 09 Dec, 2022 19:13

Views: 5657, Replies: 19
Multi-clock digital domains.

Started by paulca on 08 Dec, 2022 13:18
Last post by paulca on 09 Dec, 2022 18:11

Views: 2467, Replies: 11
230VAC -> 2mA@11VDC [email protected] 1mA MPU to drive 50Wmax AC mosfet switch

Started by szan on 03 Dec, 2022 21:04
Last post by szan on 09 Dec, 2022 18:01

Views: 5479, Replies: 24
These little black dip switches from Tayda are nice for prototyping.

Started by JenniferG on 08 Dec, 2022 23:37
Last post by mikerj on 09 Dec, 2022 14:38

Views: 1405, Replies: 3
MC1403 Schematic:What is going on?!

Started by MrAureliusR on 09 Dec, 2022 01:53
Last post by magic on 09 Dec, 2022 11:58

Views: 1074, Replies: 2
Terminal Emulators for Windows

Started by gnuarm on 04 Dec, 2022 23:23
Last post by gnuarm on 09 Dec, 2022 07:58

Views: 25431, Replies: 21
Multiple LED driver with different power ratings

Started by WaldPinkler on 08 Dec, 2022 06:04
Last post by coromonadalix on 09 Dec, 2022 06:46

Views: 2455, Replies: 6
TVS in Parallel or Series: Power sharing/handling

Started by TimNJ on 08 Dec, 2022 02:38
Last post by T3sl4co1l on 09 Dec, 2022 04:48

Views: 8963, Replies: 9
Dan Van toy with voice control circa 1978

Started by epitaxial on 22 Nov, 2022 18:25
Last post by harerod on 08 Dec, 2022 15:28

Views: 4350, Replies: 24
Tiny 3-4 pin connectors and cable ready available

Started by ddavidebor on 05 Dec, 2022 13:38
Last post by jonpaul on 08 Dec, 2022 11:39

Views: 1403, Replies: 4
rcwl-0516 microwave radar sensor (design issue)

Started by fedimakni on 16 Jun, 2021 03:40
Last post by morgan_flint on 08 Dec, 2022 09:47

Views: 1554, Replies: 1
Battery or Supercapasitor in portable bench power supply?

Started by Simenhs on 05 Dec, 2022 12:31
Last post by Simenhs on 08 Dec, 2022 08:31

Views: 2858, Replies: 12
Transistor manufacturer logo identification help please

Started by bd139 on 12 Mar, 2019 16:41
Last post by amyk on 08 Dec, 2022 02:59

Views: 5984, Replies: 10
Please critique my STM32 board

Started by hendrix on 26 Nov, 2022 10:54
Last post by Doctorandus_P on 07 Dec, 2022 23:25

Views: 4307, Replies: 17
Voltage doubler driving capacitor bank question

Started by CaptDon on 06 Dec, 2022 14:43
Last post by CaptDon on 07 Dec, 2022 18:36

Views: 1824, Replies: 6
Hacking Fujitsu F²MC-16LX 16-BIT MICROCONTROLLER

Started by tru3533 on 17 Dec, 2020 18:47
Last post by lluchiari on 07 Dec, 2022 13:12

Views: 2482, Replies: 3
stable-amplitude sine in the range 100KHz – 10Mhz

Started by JonathanTee on 05 Dec, 2022 11:05
Last post by moffy on 07 Dec, 2022 11:14

Views: 2519, Replies: 8
LPDDR3 decoupling caps - on every power pin?

Started by deanclaxton on 07 Dec, 2022 09:52
Last post by RoGeorge on 07 Dec, 2022 10:21

Views: 1002, Replies: 1
Computer Mouse Technical Question

Started by bostonman on 05 Dec, 2022 01:18
Last post by bostonman on 07 Dec, 2022 04:03

Views: 2706, Replies: 8
Lipo battery suppliers in the US?

Started by mgwalker95 on 07 Dec, 2022 00:38

Views: 719, Replies: 0
New MOTOROLA COMMUNICATIONS SYSTEM ANALYZER group

Started by Crambone on 06 Dec, 2022 22:31

Views: 728, Replies: 0
Commercial LED driver for for Flicker-Free String Lights

Started by Infrared_Fred on 05 Dec, 2022 23:39
Last post by ajb on 06 Dec, 2022 17:27

Views: 950, Replies: 2
Ethernet silly question time...

Started by peteb2 on 04 Dec, 2022 21:27
Last post by ajb on 06 Dec, 2022 17:12

Views: 2099, Replies: 7
Industrial POT replacement

Started by jamorais on 03 Dec, 2022 19:03
Last post by Terry Bites on 06 Dec, 2022 13:57

Views: 1340, Replies: 4

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Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

RS485 Modbus - LG Heat Pump

LM1117 Priority OR Circuit

Tektronix 11801c trigger

Who makes and where to buy USB Audio chips?

Suggestions for 24 VAC totalizer (event counter)

Anritsu MS2721B portable spectrum analyzer repair

the replacement 555 they don't want you to know about

toslink (s/pdif) mixer

Picking apart a couple old schematics

PSU with discrete components. Any tips for CC control.

Surge supression for phase to neutral shorts

MCP1702-5002 LDO High Quiescent Current

Speaker magnet direction?

What kind of connector does Lego WeDo 2.0 use?

Negative LDOs with high PSRR?

What´s the purpose of the white gunk?

voltage limit of ceramic capacitors

Multi-clock digital domains.

230VAC -> 2mA@11VDC [email protected] 1mA MPU to drive 50Wmax AC mosfet switch

These little black dip switches from Tayda are nice for prototyping.

MC1403 Schematic:What is going on?!

Terminal Emulators for Windows

Multiple LED driver with different power ratings

TVS in Parallel or Series: Power sharing/handling

Dan Van toy with voice control circa 1978

Tiny 3-4 pin connectors and cable ready available

rcwl-0516 microwave radar sensor (design issue)

Battery or Supercapasitor in portable bench power supply?

Transistor manufacturer logo identification help please

Please critique my STM32 board

Voltage doubler driving capacitor bank question

Hacking Fujitsu F²MC-16LX 16-BIT MICROCONTROLLER

stable-amplitude sine in the range 100KHz – 10Mhz

LPDDR3 decoupling caps - on every power pin?

Computer Mouse Technical Question

Lipo battery suppliers in the US?

New MOTOROLA COMMUNICATIONS SYSTEM ANALYZER group

Commercial LED driver for for Flicker-Free String Lights

Ethernet silly question time...

Industrial POT replacement

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