DIY

How to make a simple stand-alone lamp (flashlight) with touch control

Hello, dear readers and homemade products!
Most often, flashlights and small lamps are controlled using a variety of switches. This is not always convenient, especially if you have to turn them on with dirty hands (which often happens in a garage or workshop).
In this article, the author of the YouTube channel “Mextraf” will tell you how you can make a small stand-alone LED lamp with a touch switch.
How to make a simple stand-alone lamp (flashlight) with touch control This project is very easy to make, and easy to repeat at home.
Materials needed for DIY.
– Capacitive touch switch TTP223
– LED COB module 3v 3w
– Battery 18650 3400 mAh
– Transistor 2N2222A
– Resistor 2KΩ
– Battery holder 18650
– UPS module for 18650 batteries
– Power key module IRF520
– Solder, wires, double-sided tape, masking tape
– Sewer pipe, spray paint, sandpaper.
Tools used by the author.
– Electric soldering iron with temperature control
– Engraving machine
– Technical hair dryer
Manufacturing process.
The craftsman uses an ordinary plastic sewer pipe as a material for the body.
Having tucked a couple of wooden blocks into it, and wedging them with a third, he warms up the plastic with a technical hair dryer.
How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple standalone lamp (flashlight) with touch control As a result, a rectangular case is quite simple. Holes are cut in the front wall of the case with an engraving machine for installing the battery compartment and the LED module. The same operation can be done with a flat-tip soldering iron, later cleaning the edges of the holes with a file.
 How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight ) with touch control How to make a simple stand-alone lamp (flashlight) with touch control This is a miniature capacitive touch switch TTP223 (touch sensor) and will control LEDs on and off.
There are two pads for jumpers (A and B) on the board.
If a jumper And not installed – then when the sensor is touched, the output will be a logical unit. If the jumper is on, then the logical zero.
Jumper B enables and disables the trigger mode, or “latching”.
So, the author closes contacts on site B.
 How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple offline lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control The bipolar transistor 2N2222A will serve as a switch. First, the emitter of the transistor is soldered to the GND pin on the board.
How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple standalone lamp (flashlight) with touch control A 2KΩ resistor is soldered between the base of the transistor and the IO pin.
How to make a simple stand-alone lamp (flashlight ) with touch control  How to make a simple stand-alone lamp (flashlight) with touch control The light source will be a LED COB module designed for a voltage of 3-3.7V. The positive wire from the module is soldered to the Vcc pin of the board, and the negative wire to the transistor collector.
 How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight ) with touch control The circuit will be powered by a 18650 battery.
To be convenient remove the battery, it will be fixed in such a holder.
The power wires are soldered to the Vcc and GNG pins on the board.
How to make a simple stand-alone lamp (flashlight ) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple offline lamp (flashlight) with touch control Here's a simple scheme turned out.
If you need to connect a more powerful load – then instead of a transistor you can use this IRF520 power switch module .
 How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple standalone lamp (flashlight) with touch control Now you can install the battery in the compartment and check the operation of the circuit .
How to make a simple stand-alone lamp (flashlight ) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple standalone lamp (flashlight) with touch control The sensor area is very small, like the board itself. To increase the contact area, the master glued such a foil disk to the pad.
You can also increase the sensor's sensitivity by connecting the sensor to a foil disk with a wire.
How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control Having drilled a hole in the side wall for the sensor, and fixing the entire electronic filling inside the case, the author closes the ends of the case with two plates.
After that, the LED module, sensor, battery compartment are sealed with masking tape, and the case is sanded.
How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight ) with touch control  How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple autonomous lamp (flashlight) with touch control It remains to paint the body and remove the masking tape. < br> How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple offline lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight ) with touch control The battery is installed in its place, and the lamp is ready.
In order not to take out the battery every time to recharge it, and to use the lamp as a “backup”, you can equip it with such a UPS module for 18650 batteries. Simply put, this is a miniature uninterruptible power supply module for Li-Ion batteries.
How to make a simple stand-alone lamp (flashlight) with touch management How to make a simple stand-alone lamp (flashlight) with touch control How to make a simple stand-alone lamp (flashlight) with touch control The author has fixed the lamp above the desktop.
How to make a simple stand-alone lamp (flashlight ) with touch control  How to make a simple stand-alone lamp (flashlight) with touch control Thanks to the author for the simple scheme of the lamp with capacitive control.
In a similar way, you can upgrade an existing flashlight with a power supply of up to 5.5V.
Good mood, good health, and interesting ideas to everyone!
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The author's video can be viewed here.
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