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heltonbiker
  • Member for 12 years, 10 months
  • Last seen more than 3 years ago
6 votes
1 answer
153 views

Standards for vehicular lighting connections

4 votes
1 answer
97 views

How does area and intensity relate to perceptive brigthness of a light source?

4 votes
2 answers
2k views

How could I make a water-resistant touch/tap sensor (similar to push button) for all-weather outdoor use?

3 votes
3 answers
2k views

Flip a Schmitt-Trigger when current flows through a Zener diode

3 votes
3 answers
645 views

Prevent excess current through Zener regulator when system load is switched off

3 votes
3 answers
11k views

Is there a simple way to diffuse the light of a "super bright" 5mm LED?

3 votes
1 answer
1k views

How should I make a generator-powered rectifier/regulator charge a battery?

2 votes
1 answer
557 views

Charging lead-acid battery in parallel with load - what if the system voltage goes above nominal, and how to prevent it?

2 votes
5 answers
2k views

Is there a wireless protocol for 100m-1km range in rural property?

1 vote
2 answers
508 views

Replacing capacitor with a battery as a filter/buffer in a 6V circuit - is it a viable idea?

1 vote
1 answer
334 views

Use indepenent power sources for Arduino and for breadboard

1 vote
3 answers
1k views

Feeding higher voltage sine wave to Arduino interrupt pin

0 votes
3 answers
1k views

Passive voltage drop from 6V DC to 5V DC for 3W circuit

0 votes
2 answers
730 views

Simple way to charge 5 x AA via USB - any off-the-shelf component for that?

0 votes
2 answers
973 views

Is there an online "table" or something for choosing MOSFET's?

0 votes
1 answer
118 views

Having two variable voltage sources, how drive current only from the larger one at every time?

0 votes
3 answers
1k views

Maximum voltage allowed in trigger pin of 555 bistable

0 votes
1 answer
167 views

Switch off branch of a circuit when voltage is present in another branch [power path management]