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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How to read 4.2V cell voltage by 3V STM32 ADC

Started by Wilson__ on 30 May, 2024 23:31
Last post by Doctorandus_P on 03 Jun, 2024 11:52

Views: 2754, Replies: 5
Increasing DESAT diode voltage rating

Started by rubacava on 02 Jun, 2024 16:51
Last post by David Hess on 03 Jun, 2024 06:00

Views: 1463, Replies: 6
multi polar power supply tracking IC? how about circuits?

Started by coppercone2 on 27 May, 2024 22:22
Last post by coppercone2 on 03 Jun, 2024 04:10

Views: 3599, Replies: 19
TO92 lead forming

Started by veedub565 on 02 Jun, 2024 11:51
Last post by Doctorandus_P on 02 Jun, 2024 23:04

Views: 2451, Replies: 7
Using an IO expander to retain pin values in deep sleep

Started by MrExpolre on 01 Jun, 2024 12:46
Last post by Nominal Animal on 02 Jun, 2024 22:31

Views: 3344, Replies: 15
Strange behavior of WS2816 LEDs---very long reset time (4-5 ms) required

Started by mark03 on 28 May, 2024 19:17
Last post by nctnico on 02 Jun, 2024 17:58

Views: 2534, Replies: 9
PLJ-0802E Schematic Needer

Started by joe burch on 02 Jun, 2024 15:51
Last post by salihkanber on 02 Jun, 2024 16:06

Views: 904, Replies: 1
How to distinguish between Lithium-ion and Lithium Polymer cell

Started by Wilson__ on 29 May, 2024 16:48
Last post by salihkanber on 02 Jun, 2024 13:27

Views: 2934, Replies: 9
Control circuit for NiCd battery charger

Started by soldar on 31 May, 2024 16:55
Last post by soldar on 01 Jun, 2024 21:58

Views: 2427, Replies: 7
(All-in-one DC-DC Buck converter) MPM3630 burns at startup. Layout error?

Started by alirabarber on 01 Jun, 2024 10:53
Last post by alirabarber on 01 Jun, 2024 19:56

Views: 2548, Replies: 8
STM32H503 USB bootloader

Started by Neilm on 31 May, 2024 19:00
Last post by Neilm on 01 Jun, 2024 18:20

Views: 1042, Replies: 2
OPA2182 double amp circuit Gain value question

Started by Overspeed on 01 Jun, 2024 16:12
Last post by Overspeed on 01 Jun, 2024 17:59

Views: 822, Replies: 2
Dallas DS2433 software modded in English, searching for an DS2431 equivalent

Started by coromonadalix on 08 Oct, 2022 13:51
Last post by coromonadalix on 01 Jun, 2024 01:34

Views: 1396, Replies: 2
ENGiNDOT 30V/5A - is it a rebrand of something else?

Started by ledtester on 31 May, 2024 13:57

Views: 562, Replies: 0
Connecting 1 pair of speaker to 2 audio sources

Started by kian0079 on 28 May, 2024 02:47
Last post by tooki on 31 May, 2024 13:11

Views: 4913, Replies: 7
How to implement long press button on/off for STM32

Started by Wilson__ on 31 May, 2024 12:08
Last post by pcprogrammer on 31 May, 2024 12:31

Views: 1351, Replies: 1
NMEA 2000 "Fast Packet" protocol and fragment ordering

Started by e100 on 11 Jul, 2022 02:38
Last post by IDEngineer on 30 May, 2024 18:34

Views: 4259, Replies: 2
Elektor Precision Power Supply Dec 1982 repair improvements

Started by oz2cpu on 30 May, 2024 08:11
Last post by oz2cpu on 30 May, 2024 12:27

Views: 1545, Replies: 2
STM32 pins for 2 PWM signals in phase and 180 out of phase

Started by ricko_uk on 29 May, 2024 19:49
Last post by ricko_uk on 30 May, 2024 11:35

Views: 1252, Replies: 2
What Lithium cell chemistry to choose?

Started by Wilson__ on 29 May, 2024 17:10
Last post by Wilson__ on 30 May, 2024 10:06

Views: 935, Replies: 3
Fastest SOIC FET Driver

Started by stretchyman on 30 May, 2024 07:35
Last post by stretchyman on 30 May, 2024 08:41

Views: 840, Replies: 2
Backing up minidv/hdv tapes to digital help

Started by AndrewEp17 on 28 May, 2024 17:16
Last post by EEVblog on 30 May, 2024 06:47

Views: 4435, Replies: 24
YOYcart experience

Started by digsys on 17 Oct, 2018 12:50
Last post by M4trix on 29 May, 2024 16:56

Views: 15105, Replies: 14
SMD resistor with marking

Started by tszaboo on 27 May, 2024 08:51
Last post by tszaboo on 29 May, 2024 10:03

Views: 2934, Replies: 7
ASIC project - Colloborative project (Must be in NSW, Australia)

Started by steamedhams on 28 May, 2024 08:34
Last post by steamedhams on 29 May, 2024 07:59

Views: 1674, Replies: 6
Issues with ATM90E26 Energy Metering IC Calibration

Started by adharsh96 on 28 May, 2024 06:16
Last post by Kleinstein on 29 May, 2024 07:40

Views: 2360, Replies: 5
Reliable source for micro HDMI Male PCB mount connectors??........

Started by Smokey on 27 Nov, 2023 07:10
Last post by Smokey on 28 May, 2024 20:29

Views: 5261, Replies: 7
[optoelectronics] how to protect a photodetector to avoid its saturation

Started by EugenioN on 17 May, 2024 12:23
Last post by Terry Bites on 28 May, 2024 16:33

Views: 6308, Replies: 21
Resistor on a post in CRT monitor?

Started by gmc on 27 May, 2024 15:31
Last post by CaptDon on 28 May, 2024 16:31

Views: 1425, Replies: 5
TEC or Other non-Aircon for Room Cooling

Started by mengfei on 27 May, 2024 02:54
Last post by Marco on 28 May, 2024 15:20

Views: 4578, Replies: 22
Suggestions wanted for N-ch MOSFET with really low VGS(th)

Started by HwAoRrDk on 25 May, 2024 01:37
Last post by Peabody on 28 May, 2024 14:25

Views: 10208, Replies: 18
how to wire +/- power supply to PCB?

Started by coppercone2 on 28 May, 2024 03:30
Last post by hneve on 28 May, 2024 13:45

Views: 2454, Replies: 9
Resistor Equivalence Finder using JLC Basic Resistors Only

Started by sleemanj on 24 Jun, 2022 08:48
Last post by shapirus on 28 May, 2024 08:31

Views: 31690, Replies: 15
100GEA 420FZ0S Component....

Started by Tony.T on 20 May, 2024 14:39
Last post by Phoenix on 28 May, 2024 06:05

Views: 1440, Replies: 2
DC offset on floating pins. What to do?

Started by mkiijam on 27 May, 2024 17:31
Last post by Benta on 27 May, 2024 22:40

Views: 949, Replies: 2
Interesting and sad case of electrical injury

Started by calzap on 24 May, 2024 18:40
Last post by Kim Christensen on 27 May, 2024 14:49

Views: 16178, Replies: 79
Perfectly coupled transformer with different coil diameters

Started by 741 on 17 May, 2024 10:49
Last post by 741 on 27 May, 2024 14:29

Views: 2527, Replies: 11
Best way to electronically trigger a Hall effect latch sensor ?

Started by guix on 27 May, 2024 12:48
Last post by voltsandjolts on 27 May, 2024 13:11

Views: 1248, Replies: 2
Need Custom Build Progressive to Interlaced Signal Converter HDMI>HDMI

Started by Videodrome on 22 May, 2024 07:40
Last post by kundewayne on 27 May, 2024 03:52

Views: 973, Replies: 1
GPSDO PLL tuning

Started by Clemgill on 26 May, 2024 18:12

Views: 773, Replies: 0

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Projects, Designs, and Technical Stuff

Projects, Designs, and Technical Stuff

How to read 4.2V cell voltage by 3V STM32 ADC

Increasing DESAT diode voltage rating

multi polar power supply tracking IC? how about circuits?

TO92 lead forming

Using an IO expander to retain pin values in deep sleep

Strange behavior of WS2816 LEDs---very long reset time (4-5 ms) required

PLJ-0802E Schematic Needer

How to distinguish between Lithium-ion and Lithium Polymer cell

Control circuit for NiCd battery charger

(All-in-one DC-DC Buck converter) MPM3630 burns at startup. Layout error?

STM32H503 USB bootloader

OPA2182 double amp circuit Gain value question

Dallas DS2433 software modded in English, searching for an DS2431 equivalent

ENGiNDOT 30V/5A - is it a rebrand of something else?

Connecting 1 pair of speaker to 2 audio sources

How to implement long press button on/off for STM32

NMEA 2000 "Fast Packet" protocol and fragment ordering

Elektor Precision Power Supply Dec 1982 repair improvements

STM32 pins for 2 PWM signals in phase and 180 out of phase

What Lithium cell chemistry to choose?

Fastest SOIC FET Driver

Backing up minidv/hdv tapes to digital help

YOYcart experience

SMD resistor with marking

ASIC project - Colloborative project (Must be in NSW, Australia)

Issues with ATM90E26 Energy Metering IC Calibration

Reliable source for micro HDMI Male PCB mount connectors??........

[optoelectronics] how to protect a photodetector to avoid its saturation

Resistor on a post in CRT monitor?

TEC or Other non-Aircon for Room Cooling

Suggestions wanted for N-ch MOSFET with really low VGS(th)

how to wire +/- power supply to PCB?

Resistor Equivalence Finder using JLC Basic Resistors Only

100GEA 420FZ0S Component....

DC offset on floating pins. What to do?

Interesting and sad case of electrical injury

Perfectly coupled transformer with different coil diameters

Best way to electronically trigger a Hall effect latch sensor ?

Need Custom Build Progressive to Interlaced Signal Converter HDMI>HDMI

GPSDO PLL tuning

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