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fgrieu
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14 votes
4 answers
41k views

Connecting two Ethernet PHY without magnetics?

7 votes
4 answers
14k views

Supercap charging circuit for RTC backup on STM32

6 votes
3 answers
7k views

Protection of BeagleBone Black from eMMC corruption on power loss

4 votes
2 answers
294 views

What are options for an optically-isolated power supply?

4 votes
1 answer
363 views

Alternatives to motorized variable capacitor?

4 votes
1 answer
284 views

Streaming 30 MByte/s into a PC using an FT232H?

3 votes
4 answers
6k views

Divide-by-3 with square output?

3 votes
2 answers
717 views

Consistent LED intensity from low and variable voltage supply

1 vote
1 answer
102 views

Is this a battery holder or what?

1 vote
1 answer
431 views

GFCI outlet vs centralized differential circuit breakers

1 vote
3 answers
446 views

Using a LED as a debug serial port

1 vote
0 answers
22 views

Clock division and duty cycle for ST8034P Smart Card interface