User Basj

38 votes

4 answers

40k views

Make a custom plastic case

asked May 25, 2014 at 16:50

26 votes

6 answers

12k views

Normal capacitor vs. audio capacitor

asked May 31, 2018 at 8:38

13 votes

4 answers

4k views

Heat-shrink tubing available as a roll like adhesive tape?

asked Oct 13, 2019 at 20:22

10 votes

1 answer

9k views

MIDI IN : many circuits

asked Apr 17, 2015 at 7:25

9 votes

4 answers

5k views

How can 16 buttons be connected with only 8 wires?

asked Mar 7, 2017 at 14:05

9 votes

4 answers

2k views

Is this DIN connector suited for MIDI devices?

asked Dec 1, 2019 at 21:44

7 votes

1 answer

5k views

Rubber push-button

asked Mar 11, 2015 at 15:00

6 votes

5 answers

19k views

How to inverse behaviour of a switch?

asked Feb 11, 2015 at 17:39

6 votes

3 answers

2k views

Why is it impossible to connect these two doorbells in series or parallel?

asked Aug 9 at 16:45

5 votes

3 answers

1k views

Do DSL / ADSL modems have an ADC with ~ 2 MHz sampling rate?

asked Sep 27, 2020 at 19:21

3 votes

1 answer

4k views

Maximum current drawn from a small 12V A23 battery?

asked Dec 7, 2019 at 18:03

3 votes

1 answer

6k views

A USB SD card reader on your own PCB

asked Apr 21, 2015 at 7:18

3 votes

3 answers

307 views

Opening serial port for reading, when data is already flowing

asked May 16, 2017 at 20:25

3 votes

1 answer

904 views

Background noise on a amplifier even when no audio is playing

asked May 29, 2017 at 23:35

2 votes

2 answers

17k views

Step up converter (3.7V to 5V) that will also charge battery!

asked Jun 2, 2015 at 21:34

2 votes

2 answers

1k views

Low battery detection

asked Jun 10, 2015 at 7:26

2 votes

2 answers

941 views

Is it possible to recover from this un-soldering mistake?

asked Apr 8, 2015 at 12:29

2 votes

1 answer

949 views

How to improve this microphone phantom power supply to have better SNR?

asked Oct 15, 2018 at 8:29

2 votes

1 answer

4k views

How does such an USB step-up 5V-12V work? [closed]

asked Sep 13, 2019 at 19:40

2 votes

2 answers

226 views

What informations can we obtain with these voltage and current measurements of a little electronic device?

asked Sep 18, 2019 at 11:23

2 votes

3 answers

3k views

How to make a PCB based on ATtiny easily updatable by end users?

asked Oct 5, 2019 at 9:50

2 votes

4 answers

299 views

Convert a 0 V / 3.3 V trigger signal into a 0 V / 5V trigger signal (TTL)

asked Jul 5 at 12:11

1 vote

2 answers

105 views

Transformer that doesn't take power when not used

asked Aug 10 at 15:51

1 vote

3 answers

114 views

7-meter cable between gas meter and microcontroller: too long?

asked Dec 2, 2022 at 12:23

1 vote

1 answer

110 views

Why does my MCU work better when powered to Vcc and PA1=D2 instead of Vcc and GND?

asked Dec 5, 2019 at 21:03

1 vote

0 answers

272 views

Measure 220V alternating current with a multimeter in DC mode

asked Oct 25, 2019 at 10:49

1 vote

2 answers

2k views

"Normally closed" switch: does it use more power than a "Normally open" for a low-power battery-powered ATtiny project?

asked Nov 14, 2019 at 8:26

1 vote

1 answer

186 views

How to avoid a MCU to run constantly when a superheterodyne radio receiver is receiving nothing, and possibly enter in deep sleep?

asked Dec 8, 2019 at 17:38

1 vote

3 answers

248 views

GND arriving to the wrong pin of this chip on my PCB

asked Sep 30, 2019 at 6:49

1 vote

1 answer

204 views

Power a guitar pedal (usually takes 9V power) with a single AA battery

asked Oct 1, 2019 at 18:45

Stack Exchange Network

69 Questions

Make a custom plastic case

Normal capacitor vs. audio capacitor

Heat-shrink tubing available as a roll like adhesive tape?

MIDI IN : many circuits

How can 16 buttons be connected with only 8 wires?

Is this DIN connector suited for MIDI devices?

Rubber push-button

How to inverse behaviour of a switch?

Why is it impossible to connect these two doorbells in series or parallel?

Do DSL / ADSL modems have an ADC with ~ 2 MHz sampling rate?

Maximum current drawn from a small 12V A23 battery?

A USB SD card reader on your own PCB

Opening serial port for reading, when data is already flowing

Background noise on a amplifier even when no audio is playing

Step up converter (3.7V to 5V) that will also charge battery!

Low battery detection

Is it possible to recover from this un-soldering mistake?

How to improve this microphone phantom power supply to have better SNR?

How does such an USB step-up 5V-12V work? [closed]

What informations can we obtain with these voltage and current measurements of a little electronic device?

How to make a PCB based on ATtiny easily updatable by end users?

Convert a 0 V / 3.3 V trigger signal into a 0 V / 5V trigger signal (TTL)

Transformer that doesn't take power when not used

7-meter cable between gas meter and microcontroller: too long?

Why does my MCU work better when powered to Vcc and PA1=D2 instead of Vcc and GND?

Measure 220V alternating current with a multimeter in DC mode

"Normally closed" switch: does it use more power than a "Normally open" for a low-power battery-powered ATtiny project?

How to avoid a MCU to run constantly when a superheterodyne radio receiver is receiving nothing, and possibly enter in deep sleep?

GND arriving to the wrong pin of this chip on my PCB

Power a guitar pedal (usually takes 9V power) with a single AA battery