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Results tagged with dc
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user 11339
DC stands for Direct Current, which means the flow of electric charge in a single direction. Examples of a DC source are batteries, solar panels, and dynamos.
2
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3
answers
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L7805CV 5 V Voltage Regulator 1.5 A
I seem to be having some problems with hooking up the L7805CV Regulator. When I provide it 12 V @2 A I seem to be getting an output value of 10.xx V?
What could I be doing incorrectly? Does it matter …
- 783
4
votes
1
answer
15k
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Clean 12v car power
I am looking to get a constant, clean 12V from my cars 12V line. I am wondering if all I am in need of to pull this off would be a simple 12V fixed regulator?
The 12V would be hooked up to a pico mo …
- 783
1
vote
1
answer
6k
views
Arduino SSR 5V DC (Mager GJ-3FA-L)
Is this SSR capable of doing the 0vdc out since I am seeing the output is 5V-220V DC? … I'm using the 0V DC to "push" a button (pushing = grounding it) so that the object it's connected to turns on or off. …
- 783
1
vote
1
answer
31
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Proper 5vdc relay module hookup
And just for the heck of it, I can still use this relay for DC in/output even though it only shows AC in/output on the relay itself? …
- 783
1
vote
2
answers
2k
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5V SPDT relay to a MOSFET using Arduino
I am trying to find the correct components in order to achieve the same results with a MOSFET that my current 5V relay board does.
Reason being is that I don't like all the "clicking" the relay makes …
- 783
0
votes
2
answers
1k
views
L7805CV 5V Voltage Regulator to IP camera over POE
The power is coming from the 12V 2A DC Power Adapter Supply hooked into the POE injector. … And again, I tested this out using the 12V 2A DC Power Adapter Supply/ POE injector and a standard 10ft ethernet cable and it worked just fine. …
- 783
0
votes
1
answer
85
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Arduino reading double-din radio volume rotary dial knob [closed]
Hey all I bought a Chinese double din radio in order to modify it to my liking. The main reason why i went with this one is that it had a few buttons and turn knobs on the front and i wanted to use an …
- 783
1
vote
2
answers
3k
views
Arduino ATMega32u4 USB pinout
Really quick question here - is it possible to use the GND/5V from the USB cable to power the Arduino through the USB connector but use the RX/TX pins to a motherboard's USB pin headers (D+/D-)?
The …
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0
votes
Accepted
Using 3 Channel Video Switcher Module with Arduino
Alright I got it.
Using the #include Servo library I was able to get the following values confirmed that switched the video input:
cam1 = 0-64 and also 153-180
cam2 = 65-123
cam3 = 124-152
The ar …
- 783
2
votes
4
answers
7k
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Using relays to switch between video outputs
I have a simple question: would I be able to send a video signal (composite) to each relay per camera? The reason is that I only have one video input but need to be able to use two cameras (not at the …
- 783
1
vote
2
answers
602
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ESP8266 (esp-07) powered by battery(s) for at least 1 year
Hey all I am trying to see how long I can possibly have a ESP8266 ESP-07 operate with only 1 or 2 of the Lithium-ion Battery 18650 Cell which claims to have 2600mAh.
I am making a window alarm sensor …
- 783
0
votes
2
answers
1k
views
Using 3 Channel Video Switcher Module with Arduino
Hey all I am wondering how to go about switch from camera 1, 2 or 3 using this 3 Channel Video Switcher Module on ebay here.
Since there's only V+, V- and signal for the "switch" it looks to take a …
- 783
3
votes
3
answers
807
views
Transformer with same size symbol meaning
I Know these symbols mean a transformer step up or down:
But what does this one represent since it has the same size on both sides?
Part above taken from this schematic:
And this also has me confus …
- 783
1
vote
1
answer
688
views
Nest Protect gen 2 battery to POE
Hey all i am looking for some advice in how to go about my project with a Nest Protect gen 2.
In my home i have ran cat6 wire to all 3 locations that require a smoke detector. These cat6 cables are …
- 783