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IC MK1841D3 Board from old power supply

Dpunkr1

May 16, 2022
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May 16, 2022
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I want to reuse the board for simhub dashboard ,,,,I want know the three pin in the board are used for
can it be be connected to a Arduino Uno r3
I am just an enthusiast in electronics just have basic knowledge about electronics
If guided by someone I can make it work
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Bluejets

Oct 5, 2014
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Appears the 2 pin connector at the bottom is the power supply. Trace the circuit you will see one leg to ground and one to a diode which feeds the input of the voltage regulator 7805.
The 3 pin connector has one pin to ground with the remaining 2 pins leading to the MK1841D3.
According to the link below these are current and voltage detect leads.
You will need to follow up on the link to find out more.

Google is essentially the first port of call in most things and this is the first item which came up when asking for details.

https://forum.allaboutcircuits.com/...-from-old-power-supply-board-mk1841d3.186915/

Sorry, above one required some sign in crap.......here is another....
https://datasheetspdf.com/pdf-file/1088139/ETC/MK1841/1

Some other info as well.....
https://www.instructables.com/858D-SMD-Hot-Ait-Reflow-Station-Hack/

Should be obvious about Google I think....:)
 
Last edited:

kellys_eye

Jun 25, 2010
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Jun 25, 2010
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I am just an enthusiast in electronics just have basic knowledge about electronics
If guided by someone I can make it work
Hmmm.... the 'guidance' will likely turn into a full-on step-by-step process that I doubt many have the time to dedicate towards. We're always 'happy to help' but there are limitiations.

In this particular case the data above shows the power supply and the 'signal' connections which will probably include a clock and data are needed to establish communication between that board and whatever it is you want to use to control it.

Problem is we don't know the protocols in use. It's relatively easy to determine clock rate (baud) and data but the onboard microprocessor will be looking for a particular 'pattern' of data to interpret into the required digital result. This will involve a lot of trial and error to establish and
I am just an enthusiast in electronics just have basic knowledge about electronics
doesn't give us a lot of confidence that (a) you would understand everything we tell you and (b) you would have the necessary equipment in order to achieve it.

In this particular case you would be far better off getting an Arduino (or similar) and a 'board' (multiplexed digital display) designed for use with it - https://uk.rs-online.com/web/p/led-...tchtype=&pla-320903481798&gclsrc=ds&gclsrc=ds

the necessary coding libraries are normally made available thereby saving you (and us) a mountain to climb.
 
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