My hand soap dispenser started to get slower and slower, even with fresh batteries. So I decided it was time to open it and see what was wrong.
Even with hand pumped foam dispensers, the fine metal or nylon mesh used to add the final layer of creaminess to the foam is prone to blocking over time with waterborne "stuff" (possibly organic).
It's nice that this unit is actually serviceable, with both the pump and the schmoo-plumper suited to complete disassembly for cleaning.
Quiescent current of this unit is around 2mA due to its need to continuously pulse the infrared LED. The microcontroller will turn the LED on then check the voltage from the photodiode and then turn the LED off again. It is usually only lit for as long as needed to get the reading.
When it detects a sudden increase of infrared light reflected, it runs the schmoo-pump briefly to dispense the creamy schmoo.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
Even with hand pumped foam dispensers, the fine metal or nylon mesh used to add the final layer of creaminess to the foam is prone to blocking over time with waterborne "stuff" (possibly organic).
It's nice that this unit is actually serviceable, with both the pump and the schmoo-plumper suited to complete disassembly for cleaning.
Quiescent current of this unit is around 2mA due to its need to continuously pulse the infrared LED. The microcontroller will turn the LED on then check the voltage from the photodiode and then turn the LED off again. It is usually only lit for as long as needed to get the reading.
When it detects a sudden increase of infrared light reflected, it runs the schmoo-pump briefly to dispense the creamy schmoo.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
Robot jizz. That's going into the vernacular.
By driving the positive led feed from the mcu pins, it avoids any rogue flashes of light as the mcu boots up and might toggle the output pins as they are initialised?
Eneloop AA are 1.2v rather than 1.5v – .9v down. Surely that slows it down a little?
Thumbnail still looks like something you’d use to wash your junk with.
Nice thumbnail, I actually expected to see a product called "JIZZMATIC 69".
Then I remembered your sense of humour. 🤔
Good to see that it's now Jizzing more effectively.
The thumbnail. I just had to watch this.
Can I say willy?
Getting active drain on this thing even when it is not ON. I have a 5056 8pin charger chip instead of the lth7.
11.20 "Let's knock one out, shall we?" ☺♥☺♥☺♥☺♥☺♥
clicked for the jizzmatic 69, stayed for the free mechanical engineering degree.
"Robot Jizz" ……best line ever…….
Judging by the thumbnail I thought you were repairing a jack off machine… false advertising!
Wow, I just realised my life is incomplete due to not having a battery operated soap dispenser … 😔😔😔
Re being hard to clean: once while putting "squirty cream" on a dessert and noting a weird taste, I took off the nozzle and noted a black fungal growth on the inside
I must say, I was a little worried about clicking on this , clive, I wasn't sure what you meant exactly by 'creamy schmoo pump'..
For anybody who's here because their dispenser stopped producing the robot jizz: DON'T USE PEARLESCENT SOAP.
The shiny particles are just small enough to get through the first gauze but too big to get through the second one. I found that out the hard way. I don't think it's what caused Clive's one to die, because his soap doesn't seem to be pearly, but mine clogged almost immediately.
Interesting discussion of a fucking useless item.