AC adapter connection to breadboard

Other Hardware General Electronics
1

I have a 3.3V ac adapter that I use to power a ESP-01 module.

I use jumper wires to connect the ESP-01 module to the breadboard.

Right now, I use an adapter shown in the attached JPG.
Then jumper wires again to the breadboard.
But it kludgy.

What is a better option?

adapter.jpg
adapter.jpg333×539 45.1 KB

2

On one of the larger breadboard with screw terminals you could mount the adapter to the board
with a screw-clip or similar which would be less kludgy.

3

I made this:
barrel_1.pngbarrel_2.png
From a piece of this:

And 1 of these (clip side terminal off flush):

Works well.

4

Hi,
barrel_2.png

Brilliant.... :slight_smile: :slight_smile:

You could also mount a LED and resistor to show when it is powered.

Tom... :slight_smile:
karma added

5

Hi,
That idea needs to go here.

http://forum.arduino.cc/index.php?topic=445951.450#bot

Tom.. :slight_smile:

6

Well, thanks, also made this 5V PS with an OKI-78SR, also comes in 3.3V, works great so far.
oki_ps.png

7

Hi,
Even better... :slight_smile: :slight_smile: :slight_smile:

8

I had been thinking of taking the YwRobot Power Supply and cutting out the voltage regulators.
Apparently the module does not work that well and there have been lots of reported problems with parts being fried. I don't need the voltage regulators since I plan on plugging 3.3V ac adapter.

http://wiki.sunfounder.cc/index.php?title=How_to_use_YwRobot_Power_Supply_Properly

9

outsider:
I made this:
barrel_1.pngbarrel_2.png
From a piece of this:
Adafruit Perma-Proto Half-sized Breadboard PCB - Single : ID 1609 : $4.50 : Adafruit Industries, Unique & fun DIY electronics and kits
And 1 of these (clip side terminal off flush):
Breadboard-friendly 2.1mm DC barrel jack : ID 373 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Works well.

Very snazzy, but too much work for my incompetent hands. Sigh.

10

Don't see why someone doesn't make something this simple, only drawback is making sure polarity is correct (not inserting into wrong end of breadboard), which I HAVE done with those breadboard power supplies. >:(

11

outsider:
Don't see why someone doesn't make something this simple, only drawback is making sure polarity is correct (not inserting into wrong end of breadboard), which I HAVE done with those breadboard power supplies. >:(

you rang?

686×516 199 KB

Complete with pads for a 1117-series regulator in SOT-223... (sadly, I only have it in that assortment, not separately)

That same link also has a bunch of small pieces of prototyping board in different shapes and sizes for applications like this.

12

@DrAzzy
Are those small 3 x 9 stripboards double sided or is there such a thing PTH? I'll have a look, TNX.