User Dojo

29 votes

5 answers

6k views

Why do some EMI/RF shields have holes on the top and some don't?

asked Sep 21, 2017 at 5:19

24 votes

2 answers

5k views

Why do radiation hardened IC packages often have long leads?

integrated-circuit packages radiation

asked Jun 8, 2019 at 8:58

4 votes

2 answers

732 views

Is this datasheet wrong?

transistors bjt datasheet symbol

asked Oct 29, 2017 at 9:15

4 votes

1 answer

5k views

What do chips like ELM327 and STN1110 do?

microcontroller automotive can obd

asked Feb 18, 2014 at 17:52

4 votes

1 answer

7k views

How do I calculate the capacitor value (Farad & Voltage) given the pulse current, pulse duration & maximum tolerable voltage drop?

power-supply capacitor analog design capacitance

asked Mar 24, 2014 at 14:03

2 votes

4 answers

1k views

GPS Antenna Selector: How to electronically select one antenna from multiple available antennas?

rf switches wireless antenna multiplier

asked Aug 6, 2014 at 11:34

2 votes

2 answers

640 views

How is this kind of soldering done?

pcb pcb-design soldering assembly pcb-assembly

asked Nov 5, 2017 at 8:13

1 vote

0 answers

406 views

Isolation for USB 2.0 High Speed (480 Mbps) [duplicate]

usb isolation

asked Oct 7, 2018 at 9:54

1 vote

1 answer

136 views

How would you jerry-rig an android phone for continuous autonomous operation?

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asked Jul 8, 2015 at 10:48

1 vote

3 answers

90 views

Measuring ripple voltage using on-board components. Is it possible?

power-supply analog noise load-cell precision

asked Oct 15, 2017 at 6:16

1 vote

1 answer

492 views

Connecting AVR running at 3.3V to a 2.8V I2C bus

avr atmega i2c atmel atmega328p

asked Aug 8, 2016 at 18:17

0 votes

0 answers

400 views

Resettable fuse failure

short-circuit fuses circuit-protection polyfuse

asked Oct 14, 2016 at 11:28

0 votes

1 answer

3k views

Battery Protection IC: How to ensure that even under-voltage batteries are allowed to be charged?

power-supply batteries battery-charging low-power lipo

asked Mar 28, 2016 at 15:46

0 votes

4 answers

158 views

Linux on board without 3rd party modules. Where to start? [closed]

microprocessor linux operating-system sbc

asked Jan 25, 2018 at 11:54

0 votes

0 answers

185 views

Low cost low speed fiber optic connection for embedded applications

microcontroller communication optoelectronics optical-fibre

asked Feb 2, 2018 at 15:38

0 votes

1 answer

73 views

Does ST have a separate Cortex M4F series or are its M4 parts essentially M4Fs?

microcontroller stm32 arm cortex-m

asked Feb 8, 2018 at 14:57

0 votes

2 answers

1k views

Negative Voltage Reference for Bipolar ADC

analog adc measurement voltage-reference negative-voltage

asked Aug 15, 2018 at 11:10

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17 Questions

Why do some EMI/RF shields have holes on the top and some don't?

Why do radiation hardened IC packages often have long leads?

Is this datasheet wrong?

What do chips like ELM327 and STN1110 do?

How do I calculate the capacitor value (Farad & Voltage) given the pulse current, pulse duration & maximum tolerable voltage drop?

GPS Antenna Selector: How to electronically select one antenna from multiple available antennas?

How is this kind of soldering done?

Isolation for USB 2.0 High Speed (480 Mbps) [duplicate]

How would you jerry-rig an android phone for continuous autonomous operation?

Measuring ripple voltage using on-board components. Is it possible?

Connecting AVR running at 3.3V to a 2.8V I2C bus

Resettable fuse failure

Battery Protection IC: How to ensure that even under-voltage batteries are allowed to be charged?

Linux on board without 3rd party modules. Where to start? [closed]

Low cost low speed fiber optic connection for embedded applications

Does ST have a separate Cortex M4F series or are its M4 parts essentially M4Fs?

Negative Voltage Reference for Bipolar ADC