Techgenie

Yes, you can but then you also need to use a heat sink with 7805 voltage regulator because it will get hot and can burn out.

Thanks..I am glad you like it..:)

Based on the product description, it seems that it may work for the project but to be honest, i will recommend you buy a cheap chinese RC toy and extract the circuit from it. It will be much cost effective.At 12v the rpm will be very high, we will then need speed reduction gears to be able to control it. A 12v motor will also work with less voltage and provide less rpm. However, But the 3.7v 2000mAh battery i used is enough for motor to provide sufficient rpm for RC car.

You can use 2 Li-ion batteries (18650) connected in series. However, you will also need to add battery protection circuits to prevent any damage to the batteries.

Which Switch..??

Thanks...I am glad you like it..:)

Thanks..:)

Keep the primary to secondary turn ratio to be around 1:100 , it should work. Also make sure that you need to use good quality high current battery because a normal cheap chinese battery doesnot have enough current to power the project.

But do you still like it..??

Thanks...I am glad you like it...appreciation does help a lot..:)

Thanks a lot..:)

I am glad you like my work..:) Also, your suggestions seems good...thanks a lot..)

Thanks...you are welcome..:)

Thanks..I am glad you like it..:)

No, you don't need to control the current. The powerbank should be capable to supply enough current and the device only draws the current it needs.I connected four 2000mAh Li-ion batteries in parallel making a current capacity of 8000mAh or 8Ah.

Thanks a lot...I am glad you like it..:)

Thanks...yes it can be powered by a battery. 18650 li-ion batteries provide good power but operating time & battery charging will be an issue. However, a charging circuit can also be made.

Yes any thin insulated wire can be used which doesn't restrict closing of the cell phone.

Thank you very much...your appreciation does matter a lot..:)

Yes, you are right....it would be wonderful and there are already many such products available in market.

Thanks a lot..I am glad you like it..:)

Hello PayalA8, i think i can help you out in this. Can you tell me what exactly is the problem with the car??Has it stopped responding completely? Did both the motors stop working or it works sometimes??Looking at the picture, nothing seems broken...did it work on the first day and stopped working after the fall..??If yes, what did you do on it with the soldering kit because the wires in the picture are soldered.As i can see the PCB already has markings for all the components. It will be easy to identify the location of the components.We first need to begin the diagnostics of every component and voltage. I am not sure whether the problem is in receiver, transmitter, in some component or in the wiring.First insert the batteries in the car and check the voltage (using a multimeter) at the b…

Hello PayalA8, i think i can help you out in this. Can you tell me what exactly is the problem with the car??Has it stopped responding completely? Did both the motors stop working or it works sometimes??Looking at the picture, nothing seems broken...did it work on the first day and stopped working after the fall..??If yes, what did you do on it with the soldering kit because the wires in the picture are soldered.As i can see the PCB already has markings for all the components. It will be easy to identify the location of the components.We first need to begin the diagnostics of every component and voltage. I am not sure whether the problem is in receiver, transmitter, in some component or in the wiring.First insert the batteries in the car and check the voltage (using a multimeter) at the battery holder terminals. This seems to be a 4 AA (1.5v) cell battery holder, so you will get around 6v or 4.8v(if you used 1.2v chargeable batteries) between the first and last terminal.If the voltage is fine, then move on the next point over to the switch. Check the switch in both ON and OFF state.Next, check the voltage over the Vcc and Gnd points on the circuit board. You should get 6v there also.If that is also fine, then you need to check the motors, de-solder the motors from the circuit and check them independently using a battery. If the motor work fine in both the directions, then the problem is in receiver circuit board. If the car worked initially then there might be some connection breaks in the PCB tracks developed due to the fall. Carefully look for any damage on the PCB board and repair it if found.You can use a continuity tester mode in the multimeter to check the continuity of all the tracks over the PCB board.

Thank you very much...your appreciation matters a lot..:)

Yes, you are right. This project only works with a working cell phone that is also active to make calls.

Thanks...:)

Thanks a lot..i am glad you like it..:)

Thanks...:) The Lizard too looks wonderful.

Thanks...I am glad you like it..:)It is also super fun to play with..i too enjoy it a lot may be cz there is no more satisfaction than making some good stuff yourself.

Yes, why not..??

Did you enjoy this..?

Haha...I am glad you like it..:)

Thanks..I am glad you like it..:)

Yes, you are absolutely right. This foam cutter was a very raw attempt that i made but the next version will surely be much more improved.

Yes, i too think that a thick wire can help or you can make individual pieces and then using adhesive paste the foam pieces to make the box with required dimensions.

Yes, you are right. That is why it is important to use a TP4056 charging module with protection.

Ohh, is it..?? I never knew this, i used to think that any wireless charger can charge any phone if it is Qi certified charger.

There are already many commercial wireless chargers available in the market.

Hello abhay06,I used a receiver circuit from an old broken RC toy. The receiver circuit mostly mentions the components to be connected. Have a look at the receiver circuit you will be using to find out where to connect all the components.You can also make your own circuit at home just by following a simple tutorial here- https://maker.pro/pcb/projects/remote-control-car/However, it is recommended to use a circuit from a cheap RC car.

Thanks...I am glad you like it...your project looks amazing.

Thanks..I am glad you like it..yes it works well..

No, a mobile adapter works with 220v AC power supply.

That is what this instructable is all about..

Thanks..yes that's true. However, you always don't need to calibrate using another compass. You can observe the direction of sun and orientation of magnet to get the right direction.

Thanks a lot..:)

Nope, its not about amperes. Its just a very small project and uses electromagnetic field to excite the electrons inside the neon and fluorescent lights. It doesn't actually transmit electricity.

Haha...Yeah, it great fun to watch it move.

Thanks..I am glad you like it..:)

Great....:)

Great...How does it work??Can you share the pic??

Yes, if an iphone has wireless functionality then it will work.Also, these days its possible to provide wireless functionality to any phone using a receiver charging pad. If you would like to convert any phone to wireless charging phone, have a look: https://youtu.be/CBLqKHwZdvI

Thanks...I am glad you like it..:)

I got the PCB Assembly for about $19 and then around 2 hrs of work in design & construction.Its about 1/3rd the price of a commercial market product. It performs much better than those and also, i had the flexibility to design it myself.

Hello DanF49,The design i made needed long wires, so i had to extend them but it is not necessary to extend the wires.

Its about 1/3rd the price of a commercial market product. It performs much better than those and also, i had the flexibility to design it myself.I got the PCBA for about $19 and then around 2 hrs of work in design & construction.

Thanks...I am glad you like it..:)

Hello rjramos424, The concept behind this project is simple. When the battery is connected to a DC motor, it starts to rotate.Now, this project uses just two motors for moving in the three directions (not backward because it was not needed here). If you have read the instructable well, you might have already understood the concept.As here, both the motors are independently controlled by two switches. When the left motor moves clockwise the robot turns "RIGHT" and when right motor moves clockwise, the robot turns "LEFT". When both the motors moves clockwise, the robot runs "FORWARD".

Hi vidyam4,For making a car wireless, you need a wireless receiver and transmitter module. This module should be used to control the car with a remote.I have made a wireless remote control car as well, have a look - https://www.instructables.com/How-to-Make-a-Remote-Control-Car/

The concept is quite simple. A nichrome has a great property that on supplying current, it acts as a high resistance load. Also, nichrome wire gets heated to a very high temperature quickly when applying current through it.

No, a 12v battery cannot be charged with TP4056 module. Also, 12v battery doesnt need a boost converter.If you want to use a single 12v battery. You need a 7805 voltage regulator IC to convert it to 5v and also a heat sink over the regulator to absorb extra heat.

The design you showed seems good but the batteries cannot be charged with a 5v mobile adapter because the two batteries connected in series have resultant of 7.4v 4000mah current(two such piar makes it 7.4v, 8000mAh), for this you atleast need a 9v 2A power adapter to efficiently charge all the 4 batteries in around 5 hrs. Also, there is no over-discharge protection.

Thanks #RobertS251...a conductive paint is a commercial solution and an aluminium foil is a simple home solution. I don't have any idea but i think that may be conductive paint might also cost more.

No, this solution only works for the remote. Phone buttons are much more compact and sealed differently. You can remove the keypad but there is a metal contact beneath it which cannot be removed without damaging it.

Yes #StephenR28 using hole punch to make button contacts seems like a great idea, i will surely give it a try.

That's great #bbqrooster. I am glad i could be of help. Its good that at this point only the contact cleaner was enough. However, now, you even know the next step, if ever needed.

Ohh yes, this is a great idea, paper will surely help to glue more reliably.

Yes, SIN1T2, it seems like a great tip to use gears and shafts but the motor from a printer has very low rpm, it takes quite a long time to wrap the coil.