DIY touch-activated LED lantern
Вставка
- Опубліковано 5 чер 2024
- This is my new nightlight. This touch-sensitive LED lantern is activated when you place your palm on its top. It is made of wood and paper.
Read my instructable for pictures and more details: www.instructables.com/id/Touc...
Affiliate shopping links:
Blank PCB kit:
s.click.aliexpress.com/e/8mufXBi
Warm white LED strip:
s.click.aliexpress.com/e/byPhiztW
*******
Check me out on Facebook: / leftymaker
Follow me on Twitter: / leftymaker
More cool stuff on Instagram: / leftymaker - Наука та технологія
You are an artist! Beautiful job!
Love this build, I will try to make my own.
Thanks for the cool video man you just gave me an awesome idea for touch lighting in my bedroom.
Excellent workmanship...👍👍
Lovely job Sir!
This is so cool looking
This is gorgeous! I have to try making this, haha.
Fan Tas Tic !!! I will make a lantern like yours... love it!
I like yourrr ,,rrr'' letterrr in yourrr accent. Grrreat :-) Can't be forrrgoten :-) Nice chip that pcf8883. I didn't knew it. Although can be replaced by 3-4 transistors forming dc amplifier and latch. Also simple circuit. But pcf8883 gives some kind of elegance over discrete one. That aluminium foil will loose contact overt time due to oxidization and electrolytic metal dissimilarity, better to use copper foil or part of tin can and solder.
Your working is superfine boss...Can I get this circuit readymade with components in the market...?
the idea is exceptionally awesome, but i couldn't help to notice that the light went on even before you touch it... check at 6:07 at 0.25x speed.
I noticed that as well here's why: the PCF8883 is a capacitive touch/proximity switch that works through capacitive coupling, so it really only needs your hand to be as close as the sensitivity is set to, according to the capacitor on pin3 :)
how did you make a hole in the jar?
Wow kerennn bang😍😍😍
Sngat menginspirasi👍👍
From 🇲🇨
Very cool, I need to make something like this but battery powered!
Thanks! I've been thinking the same too since I saw the Casper Glow light.
@@LeftyMaker couldn't we just use a 9v battery to power this?
3:37, if I want to make it less sensitive, would it be fine to use a lower capacitance?
Can multiple part of the lamp be touch sensitive (as switch) ?? I'm doing a lamp for my Design & Tech Project, and this touch sensitive switch idea is very interesting . That's why I'm asking .😄
Yes, but be careful. Having more touch-sensitive areas means using more aluminum foil, which increases the area and capacitance of the sensing plate you're essentially making. This could make the switch too sensitive and activate from stuff like the static electricity in your clothes. You can try using much thinner wood over the foil and a smaller value for the capacitor that sets the circuit's sensitivity. Or you can use multiple 8883 chips and an Arduino.
LeftyMaker ok, thank you very much 😄
Very nice, I will try if I can find the part - is there an alternative to the PCF8883? I'm unable to find the chip on aliexpress and you've stated below that the TTP223 won't work with this design.
Hey Tom. I *guess* the TTP223 might work if you're okay with leaving it exposed. Or maybe it will still work if it is covered by a thin piece of veneer. But again, I've never used that module.
@@LeftyMaker I would like to make as in the video, I will search for another chip....
wow Thanks!
Where do you buy the components? Cause I cant find the exact parts
Is it fine if I'm not using the exact transistor as you used ? Will it still work ?
Yes, you can use a different transistor, as long as it can handle the current of the LEDs
how about Pcb designing
hi was just wondering if any programing was needed for the chip
Hey, no programming needed!
It would be possible to replace the PCF883 with a NE555 on bistable mode?
It depends on what you want to achieve. The PCF8883 senses changes in capacitance to detect your palm. This triggers the switch. With an NE555, you'll have to use actual, physical buttons.
Is it possible to make a touch-sensitive LED circuit using a flat watch battery? I need something that can run on a flat watch battery because it will be used very infrequently and needs to be as small as possible.
Not impossible, but possibly impractical and inefficient. The voltage won't be enough, so you'll need a booster or two batteries in series
Maybe I missed something. But how does the touch transfer through the wood. Wood is not conductive ?
The circuit is very, very sensitive. Practically, it detects the presence of your palm, not touch, and it can sense it from a distance, even though the wood.
Woah.. that is nice. Its almost like an RF touch
I don’t understand how it works because the Aluminium foil is glued to wood (non consecutive)
Besides that what is the ic part name
And great video. I enjoyed
It is a PCF8883, and it makes a circuit so sensitive that it will detect your hand even from a distance and through the wood. Cool, right?
LeftyMaker yes very cool, as you mentioned that the capacitor it a sensitivity indicator so if I’ll use a variable capacitor I’ll be able to change the sensitivity but the variable capacity should be in which range of values
www.nxp.com/docs/en/data-sheet/PCF8883.pdf This is the datasheet for the chip. It will probably answer a lot of your questions. The value for the sensitivity cap should be between 90nF and 2500nF. 470nF is the recommended value. Not sure how well the variable capacitor will perform, but do let us know if it works well! :)
I have tested this but it not working with the wood... I mean the touch part.. Please help
I used 5 100kpf capacitor in series
Asmar Khan try to change the capacitor value to what the Leftymaker told me at the comments up
And check if the circuit works on a breadboard and then try it with the wood case
Can any one please give me a link for the components I’m from the uk
Hi. Unfortunately, the 8883 chip is listed as discontinued at Farnell. I've been thinking of making a v2.0 of the lamp with newer parts but I just don't have the time. They still have it at AliExpress though m.aliexpress.com/item/4000358502683.html
do you sell this lamp?
hi another question what power supply are you using
Just a regular 12v 1a power supply. It really depends on how many LEDs you want to drive
do more please and can you write the components please
Hey Ahmed! All the component numbers and values are at 3:20 into the video. The power supply is just an ordinary wall brick. Do let me know if there's anything unclear.
Hi I can see a resistor on the real life circuit but it’s not on the circuit diagram, does that mean that I do not need it?
Hi, good observation. I wasn't sure myself at the time, but I've since learned that a resistor to the gate is good having. There is a small capacitance the mosfet has. If you have something like an Arduino connected to the gate, having no resistor may damage the chip because for a fraction of a second, the chip will be seeing very little resistance, therefore passing too much current. Hope this helps.
LeftyMaker does that mean that I wouldn’t need one if I’m using a direct 12v from a battery pack. If I do what is the resistance
@@trioabs2166 Can you give me more details? What exactly are you making?
LeftyMaker I’m making a touch sensitive lamp powered by 8 AA batteries
What chip are you using to detect the touch? I'm asking because the pcf8883 I used works with 9V maximum. Other than that, the mosfet should be able to handle 12V, I think.
What is the theory / principle behind it??
Do we need to do coding??
Nope
How to made a friendships lamps
Кремлёвское Игристое