User fhlb

17 votes

5 answers

8k views

RS485 network ground pin - when to connect?

rs485 grounding

asked May 8, 2016 at 12:07

9 votes

2 answers

986 views

Can someone explain this microcontroller ADC interface (for reading solar panel voltage)?

asked Apr 27, 2018 at 12:33

7 votes

1 answer

11k views

which is better? 5V or 3.3V as the supply voltage

power-supply voltage 5v 3.3v

asked Aug 19, 2015 at 4:47

6 votes

2 answers

793 views

Reverse voltage protection for Analog Devices’ family of protection controllers

power protection reverse-polarity

asked Dec 22, 2018 at 17:37

4 votes

1 answer

403 views

help understanding this reverse polarity protection circuit

mosfet protection zener polarity

asked Dec 26, 2018 at 10:27

4 votes

6 answers

12k views

maximum reverse voltage applied to a resistor-LED configuration

led reverse-polarity reverse-breakdown

asked Sep 10, 2016 at 11:33

3 votes

1 answer

4k views

Altium Designer "Copy Room" function not working properly

pcb pcb-design altium

asked Oct 6, 2017 at 11:15

3 votes

1 answer

1k views

Resistor parallel to an LED?

microcontroller led resistors

asked Jan 3, 2018 at 10:55

3 votes

1 answer

330 views

microcontroller external clock power option (pic18f)

oscillator

asked Oct 6, 2015 at 11:44

2 votes

1 answer

756 views

microchip pic18f: What is the difference between a POR/BOR and other resets

reset

asked Sep 5, 2015 at 15:24

2 votes

3 answers

5k views

water proof bulkhead SMA connector

connector waterproof

asked Jul 13, 2016 at 16:20

2 votes

2 answers

1k views

laptop battery connector name [closed]

batteries connector laptop

asked Aug 10, 2016 at 16:03

2 votes

5 answers

2k views

Replacing RJ45 connector with another type connector

connector impedance impedance-matching rj45 replacement

asked Aug 27, 2016 at 14:18

2 votes

1 answer

561 views

L6203 H bridge (very) high Rds on

motor driver

asked Nov 8, 2016 at 18:47

1 vote

0 answers

224 views

Help identify old chip

integrated-circuit identification

asked Jul 19, 2017 at 13:52

1 vote

3 answers

2k views

8 bit PICs: timer1 asynchronous vs synchronous operation

microcontroller pic timer synchronous

asked Mar 23, 2016 at 11:01

0 votes

1 answer

4k views

Calculating SMD resistor temperature rise

power resistors temperature surface-mount derating

asked Jan 9, 2019 at 19:24

0 votes

3 answers

4k views

external crystal not working but internal clock worked normaly in PIC18F45K22

microcontroller pic oscillator crystal

asked May 4, 2015 at 13:19

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18 Questions

RS485 network ground pin - when to connect?

Can someone explain this microcontroller ADC interface (for reading solar panel voltage)?

which is better? 5V or 3.3V as the supply voltage

Reverse voltage protection for Analog Devices’ family of protection controllers

help understanding this reverse polarity protection circuit

maximum reverse voltage applied to a resistor-LED configuration

Altium Designer "Copy Room" function not working properly

Resistor parallel to an LED?

microcontroller external clock power option (pic18f)

microchip pic18f: What is the difference between a POR/BOR and other resets

water proof bulkhead SMA connector

laptop battery connector name [closed]

Replacing RJ45 connector with another type connector

L6203 H bridge (very) high Rds on

Help identify old chip

8 bit PICs: timer1 asynchronous vs synchronous operation

Calculating SMD resistor temperature rise

external crystal not working but internal clock worked normaly in PIC18F45K22