User adamaero - Electrical Engineering Stack Exchange

7 votes

4 answers

13k views

Optical heart rate sensor vs bioimpedance sensor?

asked Nov 26, 2014 at 18:39

4 votes

1 answer

5k views

Biasing high frequency BJT cascode amplifier

asked Sep 19, 2018 at 16:01

3 votes

2 answers

2k views

Will an inductor wound using wire of 0.6438 mm (22 AWG) be close enough to 0.508 mm (25 SWG) for a neglectable difference?

asked Jul 18, 2016 at 23:04

3 votes

1 answer

2k views

Would a silicone mat (not anti-static) placed on a truly ESD anti-static mat become anti-static?

asked Oct 5, 2020 at 12:44

2 votes

1 answer

437 views

What ESP32 pins to connect to the NAU8810 audio codec?

asked Jan 11, 2023 at 22:40

2 votes

4 answers

168 views

Is there a Design Rules change to fill in this gap between an IC and polygon in Eagle?

asked Oct 19, 2023 at 15:09

1 vote

0 answers

117 views

How to fix overcurrent fault pin triggering stepper motor driver to stop? Or how to reduce current spikes?

asked Aug 7, 2023 at 20:53

1 vote

1 answer

119 views

Is designing a PCB for the A4989 driver as simple as the application diagram seems to suggest?

asked Sep 21, 2021 at 19:58

1 vote

2 answers

560 views

Minimum components for BJT (edit: or FET) H-Bridge applied to a small 3-6V motor controlled by Arduino

asked Aug 2, 2018 at 21:42

1 vote

2 answers

7k views

Biasing Class AB power amplifier with MOSFETs

asked Oct 6, 2018 at 4:43

0 votes

0 answers

151 views

Simple oscillator design not working when implemented

asked Nov 3, 2018 at 2:51

0 votes

0 answers

145 views

Troubleshooting op-amp circuit and compactor for buzzer

asked Jun 4, 2019 at 16:55

0 votes

1 answer

107 views

Is there application note or white paper with an in-depth explanation or best practices for how to size PCB bed of nails test points?

asked May 12, 2020 at 18:27

0 votes

0 answers

261 views

Replacing two corresponding switches as one with logic gates, to supply power, around a DPDT relay

asked Aug 20, 2018 at 19:04

0 votes

1 answer

379 views

What LC tank circuit is needed for a 318 MHz remote control 9 DIP switch for a garage door controller transmitter opener using the PT2262 IC?

asked Nov 4, 2021 at 17:18

0 votes

0 answers

43 views

For the DVR8825 IC chip (not the carrier/module), nSleep and nReset need to be HIGH, why does connecting them to the IC's 3.3V out not work?

asked Dec 10, 2021 at 21:32

0 votes

2 answers

515 views

Stepper motors both rated for higher current but the NEMA 23 stops and the NEMA 17 keeps going, could it be a (hardware) low quality motor issue?

asked Feb 15, 2022 at 17:21

0 votes

2 answers

203 views

Is 0.01" dimensional tolerance the industry standard for class II and class III circuit boards?

asked Apr 27, 2022 at 15:16

0 votes

2 answers

115 views

What is the common dynamic range in "g" of a cell phone accelerometer?

asked Dec 20, 2022 at 19:54

0 votes

3 answers

85 views

Is there a name for a sensor to linearly output values according to its supply voltage?

asked Dec 21, 2022 at 14:53

0 votes

2 answers

254 views

Are many capacitors in a row in parallel really needed for an audio circuit?

asked May 18, 2023 at 15:21

0 votes

2 answers

1k views

Can an ESP32 be fed an audio signal and then output that audio to a Bluetooth speaker?

asked Aug 1, 2023 at 22:20

0 votes

1 answer

39 views

What is a way to figure the pads from a datasheet where the part diagram leaves out dimensions?

asked Nov 12, 2020 at 15:19

0 votes

1 answer

2k views

Does the ESP32's Long Range capability work with most smartphones?

asked Jan 18, 2021 at 20:18

0 votes

1 answer

424 views

How to power ESP-12 (ESP8266) with LiFePO4 battery?

asked Sep 3, 2023 at 0:37

0 votes

1 answer

262 views

Is a matching receiver module needed in order to use a Bluetooth audio transmitter/transceiver/emitter module?

asked Oct 2, 2023 at 16:53

0 votes

1 answer

40 views

How to connect ground layer to library component vias that should be ground in Eagle?

asked Oct 20, 2023 at 15:25

0 votes

1 answer

54 views

Are the diodes and capacitors oriented correctly in this motor driver PCB? TMC2209 stepper motor driver

asked Feb 23 at 17:27

Stack Exchange Network

28 Questions

Optical heart rate sensor vs bioimpedance sensor?

Biasing high frequency BJT cascode amplifier

Will an inductor wound using wire of 0.6438 mm (22 AWG) be close enough to 0.508 mm (25 SWG) for a neglectable difference?

Would a silicone mat (not anti-static) placed on a truly ESD anti-static mat become anti-static?

What ESP32 pins to connect to the NAU8810 audio codec?

Is there a Design Rules change to fill in this gap between an IC and polygon in Eagle?

How to fix overcurrent fault pin triggering stepper motor driver to stop? Or how to reduce current spikes?

Is designing a PCB for the A4989 driver as simple as the application diagram seems to suggest?

Minimum components for BJT (edit: or FET) H-Bridge applied to a small 3-6V motor controlled by Arduino

Biasing Class AB power amplifier with MOSFETs

Simple oscillator design not working when implemented

Troubleshooting op-amp circuit and compactor for buzzer

Is there application note or white paper with an in-depth explanation or best practices for how to size PCB bed of nails test points?

Replacing two corresponding switches as one with logic gates, to supply power, around a DPDT relay

What LC tank circuit is needed for a 318 MHz remote control 9 DIP switch for a garage door controller transmitter opener using the PT2262 IC?

For the DVR8825 IC chip (not the carrier/module), nSleep and nReset need to be HIGH, why does connecting them to the IC's 3.3V out not work?

Stepper motors both rated for higher current but the NEMA 23 stops and the NEMA 17 keeps going, could it be a (hardware) low quality motor issue?

Is 0.01" dimensional tolerance the industry standard for class II and class III circuit boards?

What is the common dynamic range in "g" of a cell phone accelerometer?

Is there a name for a sensor to linearly output values according to its supply voltage?

Are many capacitors in a row in parallel really needed for an audio circuit?

Can an ESP32 be fed an audio signal and then output that audio to a Bluetooth speaker?

What is a way to figure the pads from a datasheet where the part diagram leaves out dimensions?

Does the ESP32's Long Range capability work with most smartphones?

How to power ESP-12 (ESP8266) with LiFePO4 battery?

Is a matching receiver module needed in order to use a Bluetooth audio transmitter/transceiver/emitter module?

How to connect ground layer to library component vias that should be ground in Eagle?

Are the diodes and capacitors oriented correctly in this motor driver PCB? TMC2209 stepper motor driver