The problem with those is they are to big. This is for a CPAP machine so I am working in a very small area. Finding a tiny, reliable float switch is really a challenge. It's distilled water to so I can't use any conductive sensor
I actually managed to get the right angle float in upside down, so it works as I want it to. I had it all rigged up, and it worked fine, until about 10 minutes in, the float switch failed closed. So if this was in use, it would have ran the pump until the water bottle feeding the tank was dry and dumped a gallon of water all over my carpet. So I need to figure...
SluggerB
Badcaps Veteran
Last Activity: 02-09-2025, 10:23 AM
Joined: 08-03-2020
Location: Philadelphia, PA
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Help making a switch work the opposite way with a relay
I have a very small float switch, I'm using in a very small tank. It only fits in one way. Link [URL]https://www.amazon.com/uxcell-Switch-Liquid-Sensor-Plastic/dp/B07DZ1J2GB[/URL]
I want the switch to be open when the water is high, and closed when the water is low. Unfortunately it works the opposite. And since this switch is designed to be underwater, it's all sealed up, there is no taking it apart or hacking it up.
It will be driving a water pump, basic idea, when the water is low, switch closes, which turns on water pump, when enough water is in the tank, float switch... -
These are Micro USB, but I will be doing a pin mapping exercise anyway since the phone has a reverse port but they don't sell reverse port breakout boards that I could find....Leave a comment:
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I ordered up a pack of USB breakout boards, that will allow me to just run jumper wires from test point to test point and no longer have to fiddle with little pins. Will be here tommorow...Leave a comment:
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You can say that again. After about 2 hours of trying I was unable to get wires connected to the port legs successfully. My soldering skills just aren't there yet....Leave a comment:
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I did have one idea .... I could lift the leg that has 5V on it off the board on New Phone, then run a wire from that leg to the test point, and see what happens when I plug it in. If it charges, that would seem to indicate to me the test point is "next in line" for the circuit after the USB port pins. And if that is the case I could run jumper wires to all the test points and bypass the internal traces altogether. I'll try that tonightLeave a comment:
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Here is a much cleaner version of the back of the board.
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3327846}[/ATTACH]...Leave a comment:
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I tried registering lets see if it gets through...Leave a comment:
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Help with trying to fix phone that is not charging (Pics inside)
I have two TCL A30 phones.
Old Phone: This phone worked fine for years, then stopped charging If you plugged a charger into it, the phone would make the charging sound, the phone would tell you it is charging, but the battery icon would not have the charging symbol in it and the battery would not charge.I tried new battery, same behavior.
New Phone: Works fine, bought as a donor board to try and repair Old Phone
My interest here is to repair Old Phone, using components parts off New Phone if needed. I am not interested in replacing Old Phone with New Phone....Last edited by SluggerB; 08-12-2024, 08:16 AM. -
OK thanks, I will order those up! I really appreciate the help!...Leave a comment:
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Thanks. How about this replacement:[LIST][*]2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45 mA/1.8 Ohm Caps, would these be better? Note the lower ESR but lower Ripple[/LIST]I'm assuming the other replacements are OK?- Thanks. How about this replacement:[LIST]
- 2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45 mA/1.8 Ohm Caps, would these be better? Note the lower ESR but lower Ripple[/LIST]I'm assuming the other replacements are OK?
Leave a comment:
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I've had one of them go bad on another power supply, but I will leave the original on this power supply.
Any thoughts on which of those values (ESR or Ripple) would have an impact in the HDMI video signal?...Leave a comment:
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Also which of those values (ESR or Ripple) would have an impact in the HDMI video signal?Leave a comment:
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OK I went through my list one by one and saw what I could find, replacement wise, focusing on low ESR and High Ripple. Here is what I found:[LIST][*]470UF, 200V - I already have the lowest ESR and Highest Ripple cap listed[*]47UF, 50V - I have 300mA Ripple/430 mOhm ESR Caps, I found 405mA Ripple/140 mOhm ESR caps, I assume these would be better (lower ESR & higher Ripple)[*]10UF, 25V - I have 160mA Ripple/1.5 Ohm ESR Caps, I found 230 mA Ripple/520 mOhm ESR caps, I assume these would be better (lower ESR & higher Ripple)[*]2.2UF, 50V - I have 55 mA Ripple/4.5 Ohm ESR Caps, I found .45...Leave a comment:
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OK I will see if I can find aset of 8 with lower ESR than the ones I listed, and for Ripple I should look for higher?...Leave a comment:
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Can't find exact matching caps for replacements, what should I get to prevent video issues?
I have an old Tivo. The Power Supplies are known to have caps that fail. Here are the caps that come with the original power supply:
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I could not find replacement caps with the exact same specs. I followed an online guide and recapped the power supply with caps with these...Last edited by SluggerB; 04-05-2024, 07:49 PM. -
Re: Copy-protected DVDs
Funny I had the same thing just happen to me with an external drive. I just tossed it in the trash and put an old internal DVD drive i had laying around in my PC. Those things are all such cheap junk now it's no surprise they fail so easily.
First mainstream appearance of Ex-Nickelodeon Producer Dan Schneider. Real pedo piece of work, that guy....Leave a comment:
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Re: how to achieve admin rights on win10 tablet?
Boot to Win10 install media
On install screen hit Shift+F10 to get to command prompt
switch to C drive
copy c:\windows\system32\Utilman.exe c:\windows\system32\Utilman.bak
copy c:\windows\system32\cmd.exe c:\windows\system32\Utilman.exe
Reboot tablet, at login screen click the Ease of Access button, it will launch a command prompt, net user Administrator *, Enter, Enter and that should remove the Admin account password
And I agree with you, the whole idea...Leave a comment:
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Re: Tivo Series 3: Green blinking light of death
No, the hot air "trick" never actually did work for me. The owner of the board says it worked for him. Here's what I have done so far
Swapped the 3003 chip & 3002 chip, both are chips near where the hot air was applied
Swapped both large SMD caps in between those chips
Recapped all the AL SMD the entire area (14 caps) and put in 25v caps to replace the old 6.3v ones
Swapped the voltage regulator in the area
Swapped another chip labeled U11 in the area (that several of...Leave a comment:
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Re: Tivo Series 3: Green blinking light of death
Well, I recapped the board where the hot air was being blown, no dice
I also jumpered from a known 1.37v source to Test Point J, still no dice.
I did find a chip that was shorting across several legs, and in my board it was not, I swapped my chip over to the bad board but the shorts were still there, so I am going to follow all the traces to everything that chip is connected to and check it out. This is a real challnege to fault findLeave a comment:
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