Electrical Engineering
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guyd
  • Member for 5 years, 5 months
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18 Questions

Score Activity Newest Views
0 votes
1 answer
286 views

Noisy or malfunctioning PIR HC-SR505 sensor

0 votes
2 answers
547 views

Using a KA75330ZTA voltage detector

0 votes
3 answers
302 views

Adjusting input voltage for ESP8266 (difference between linear regulator to step down)

0 votes
0 answers
271 views

Solar charging a 18650 Battery ( MPPT vs TP4065 )

0 votes
1 answer
28 views

Powering externally a 3v a 2 relay module

0 votes
0 answers
56 views

Selection of DC-DC converter for boosting 4.2V to 5.0V

0 votes
1 answer
253 views

Heating up using an LM317 voltage regulator

1 vote
2 answers
2k views

ESP32. - selecting resistors for voltage divider

0 votes
1 answer
572 views

Using MCP1700-3302E LDO for Arduino/ ESP32 Solar projects

0 votes
1 answer
375 views

External power to WEMOS mini using 3.3V 1W Zener diode

0 votes
2 answers
264 views

Voltage Regulator 317 - Selecting Resistors ( R1, R2 )

0 votes
1 answer
70 views

Is it possible to use a Zener diode as a High Pass Voltage

1 vote
1 answer
214 views

NodeMCU v.1 / WEMOS Mini - Fail to Wake up from deep sleep

3 votes
1 answer
3k views

ESP8266 - free GPIOs for relay switching

0 votes
0 answers
685 views

Logic Level MOSFET IRLZ44N - under Wemos mini

0 votes
2 answers
30k views

ESP8266 - PULLUP resistor using Arduino code

3 votes
1 answer
4k views

ESP8266 - should Vin pin supply 5V?

0 votes
2 answers
257 views

OptoCoupler Relay and EMI - How to be sure it is not a "regular relay"

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