User ARF

47 votes

8 answers

8k views

How to choose a MCU platform? [closed]

microcontroller

asked Aug 8, 2012 at 21:02

26 votes

1 answer

36k views

What is the difference between emitter and collector for BJTs?

transistors physics

asked Jun 5, 2012 at 11:45

19 votes

1 answer

10k views

ESP8266 eLUA (NodeMCU) vs MicroPython

esp8266 python

asked Feb 13, 2017 at 18:37

18 votes

2 answers

3k views

Help identify the discrete component in this battery pack

batteries identification

asked Nov 19, 2018 at 10:01

14 votes

4 answers

9k views

Questions on mass-production soldering

soldering pcb-assembly solder-mask solder-paste

asked Aug 11, 2012 at 22:58

13 votes

7 answers

4k views

Cheap temperature sensing with MCU

sensor temperature

asked Jul 11, 2012 at 17:44

10 votes

1 answer

3k views

MOSFET power dissipation calculations - Diodes Inc. datasheets

power mosfet temperature datasheet

asked Feb 12, 2016 at 20:32

9 votes

5 answers

5k views

Which is easier to solder: TSSOP or QFN?

soldering pcb-assembly packages

asked Jul 23, 2012 at 16:04

9 votes

2 answers

9k views

Power supply noise in audio

audio noise ground switch-mode-power-supply ground-loop

asked Jul 28, 2012 at 11:26

9 votes

2 answers

10k views

Opamp: current flow in supply legs

operational-amplifier

asked May 2, 2012 at 1:08

8 votes

2 answers

860 views

Understanding cause of arcing in AC filter circuit

ac filter arc

asked Oct 8, 2014 at 20:30

8 votes

2 answers

848 views

Embedded programming state machines

embedded programming state-machines

asked Mar 5, 2016 at 22:17

7 votes

2 answers

4k views

Stellaris LM4F120 Series: What happened to it?

stellaris texas-instruments

asked Jul 15, 2013 at 17:17

7 votes

3 answers

6k views

Opto-coupled RS-232 receive circuit

rs232 opto-isolator surge-protection

asked Aug 10, 2014 at 16:47

7 votes

3 answers

11k views

Electrical installation: how to label wires?

design

asked Apr 29, 2012 at 10:06

7 votes

1 answer

2k views

Difficulties of I2C over wire

noise i2c cables wire

asked Jul 26, 2012 at 10:08

6 votes

2 answers

667 views

Help identify this component (part of switch de-bouncing?)

components identification

asked Apr 29, 2013 at 10:02

6 votes

2 answers

1k views

How does this voltage comparator work?

operational-amplifier comparator

asked Mar 27, 2012 at 10:02

6 votes

2 answers

616 views

Servicing mechanical selector switches / rotary encoders

switches repair mechanical

asked Sep 10, 2013 at 16:11

5 votes

2 answers

5k views

ESP8266 serial-wifi: antenna options

rf antenna wifi esp8266

asked Jan 9, 2015 at 16:30

5 votes

3 answers

18k views

Using Spice/PSpice (Vishay optocoupler) models in LTSpice

ltspice spice pspice

asked May 21, 2016 at 14:47

5 votes

3 answers

2k views

Implementing powerline communication on a battery-fed 12V line

dc-motor 12v power-line-communication

asked Mar 17, 2012 at 11:22

5 votes

2 answers

736 views

How are high-speed serial signals processed?

communication signal processing

asked Jun 10, 2012 at 20:42

5 votes

2 answers

2k views

GSM sim card extension cable

serial driver gsm

asked Jul 6, 2012 at 9:25

4 votes

3 answers

6k views

Is it possible to make a non-inverting difference amplifier?

operational-amplifier differential-amplifier

asked May 2, 2012 at 21:25

4 votes

1 answer

368 views

Allegro: plotted artwork only has hatched pads

allegro

asked May 4, 2012 at 12:07

4 votes

2 answers

725 views

Why does the ISDN S0-Bus require terminating resistors?

communication electromagnetism transmission-line termination

asked Mar 13, 2012 at 21:05

4 votes

2 answers

1k views

What component does this MOSFET-like symbol represent?

diagram

asked Mar 30, 2012 at 11:40

4 votes

2 answers

992 views

Automotive load dump protection with TVS diodes

automotive tvs

asked Jan 12, 2019 at 17:27

4 votes

2 answers

3k views

Solar cell trickle charging lead-acid without charge controller

battery-charging solar-cell lead-acid

asked May 15, 2013 at 8:48

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85 Questions

How to choose a MCU platform? [closed]

What is the difference between emitter and collector for BJTs?

ESP8266 eLUA (NodeMCU) vs MicroPython

Help identify the discrete component in this battery pack

Questions on mass-production soldering

Cheap temperature sensing with MCU

MOSFET power dissipation calculations - Diodes Inc. datasheets

Which is easier to solder: TSSOP or QFN?

Power supply noise in audio

Opamp: current flow in supply legs

Understanding cause of arcing in AC filter circuit

Embedded programming state machines

Stellaris LM4F120 Series: What happened to it?

Opto-coupled RS-232 receive circuit

Electrical installation: how to label wires?

Difficulties of I2C over wire

Help identify this component (part of switch de-bouncing?)

How does this voltage comparator work?

Servicing mechanical selector switches / rotary encoders

ESP8266 serial-wifi: antenna options

Using Spice/PSpice (Vishay optocoupler) models in LTSpice

Implementing powerline communication on a battery-fed 12V line

How are high-speed serial signals processed?

GSM sim card extension cable

Is it possible to make a non-inverting difference amplifier?

Allegro: plotted artwork only has hatched pads

Why does the ISDN S0-Bus require terminating resistors?

What component does this MOSFET-like symbol represent?

Automotive load dump protection with TVS diodes

Solar cell trickle charging lead-acid without charge controller