User Raj

8 votes

LM339 Comparator IC is not responding to any input

answered Jan 31, 2017 at 15:27

7 votes

SPI max distance

answered Jun 29, 2019 at 5:39

4 votes

RS485 Pull-up, Pull-down and EOL resistors

answered Feb 6, 2017 at 15:12

3 votes

Accepted

ESP8266 SPI pinout

answered Feb 5, 2017 at 16:21

3 votes

Are there general methods for determining if an IC is soon to become obsolete (by the manufacturer)?

answered Feb 5, 2017 at 16:34

3 votes

How to determine the electrolytic capacitor polarity from PCB printings?

answered Feb 12, 2017 at 14:42

3 votes

Measuring power consumption of a load, connected to a terminal block of a relay

answered Feb 1, 2017 at 16:41

3 votes

Accepted

Why do some TSOP1738 have a metal cross over their window?

answered Feb 15, 2017 at 4:55

3 votes

Can anything be done about this AVRISP mkII or is it dead?

answered Feb 15, 2017 at 14:13

2 votes

How to automatically turn off an SCR after being latched for DC supply

answered Feb 18, 2017 at 5:28

2 votes

Will a buck converter drain 2 X 9v batteries with no output load

answered Feb 28, 2017 at 5:01

2 votes

ATtiny85 pin as output, what is input impedance?

answered Feb 2, 2017 at 14:36

2 votes

Using PNP as OFF switch

answered Feb 2, 2017 at 12:23

2 votes

How to make the LM339 IC source current on its output pins instead of sinking current?

answered Feb 5, 2017 at 8:01

2 votes

Power supply (LED driver) specs: "setup", "rise time" meaning?

answered Feb 11, 2017 at 4:23

2 votes

Accepted

How SPI and I2C latch data?

answered Feb 13, 2017 at 8:07

1 vote

Accepted

AVR: target doesn't answer error

answered Feb 12, 2017 at 18:43

1 vote

How to use TMS570 microcontroller UART to communicate to another device?

answered Feb 5, 2017 at 19:27

1 vote

Implementing the Dynamic Payload Length Feature between two nRF24L01+ Modules

answered Feb 6, 2017 at 5:25

1 vote

BLDC controller

answered Feb 6, 2017 at 5:42

1 vote

NPN BJT Vbe & Vce Using one ground?

answered Feb 6, 2017 at 6:02

1 vote

Is it necessary to use 4-pole circuit breaker for TN-C-S system?

answered Feb 5, 2017 at 7:47

1 vote

On an AC-DC adapter, what is the use of the mA number printed on it?

answered Feb 1, 2017 at 5:47

1 vote

MOSFET current question

answered Feb 1, 2017 at 6:03

1 vote

Accepted

Can a 12 VDC 35A rated switch be used in a 24V 30A application

answered May 3, 2017 at 6:28

1 vote

Atmega32u4 USB 2.0 Routing Check

answered Feb 18, 2017 at 9:37

1 vote

lighting from a 12v lead acid battery

answered Feb 14, 2017 at 9:02

1 vote

What are chances a BJT switch is damaged if a capacitor discharges to ground

answered Feb 14, 2017 at 15:48

0 votes

How to light a bulb from an audio signal?

answered Feb 16, 2017 at 11:07

0 votes

How can I drive a NEMA 17 stepper with a raspberry pi

answered Feb 19, 2017 at 5:21

Stack Exchange Network

55 Answers

LM339 Comparator IC is not responding to any input

SPI max distance

RS485 Pull-up, Pull-down and EOL resistors

ESP8266 SPI pinout

Are there general methods for determining if an IC is soon to become obsolete (by the manufacturer)?

How to determine the electrolytic capacitor polarity from PCB printings?

Measuring power consumption of a load, connected to a terminal block of a relay

Why do some TSOP1738 have a metal cross over their window?

Can anything be done about this AVRISP mkII or is it dead?

How to automatically turn off an SCR after being latched for DC supply

Will a buck converter drain 2 X 9v batteries with no output load

ATtiny85 pin as output, what is input impedance?

Using PNP as OFF switch

How to make the LM339 IC source current on its output pins instead of sinking current?

Power supply (LED driver) specs: "setup", "rise time" meaning?

How SPI and I2C latch data?

AVR: target doesn't answer error

How to use TMS570 microcontroller UART to communicate to another device?

Implementing the Dynamic Payload Length Feature between two nRF24L01+ Modules

BLDC controller

NPN BJT Vbe & Vce Using one ground?

Is it necessary to use 4-pole circuit breaker for TN-C-S system?

On an AC-DC adapter, what is the use of the mA number printed on it?

MOSFET current question

Can a 12 VDC 35A rated switch be used in a 24V 30A application

Atmega32u4 USB 2.0 Routing Check

lighting from a 12v lead acid battery

What are chances a BJT switch is damaged if a capacitor discharges to ground

How to light a bulb from an audio signal?

How can I drive a NEMA 17 stepper with a raspberry pi