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Questions tagged [remote-control]

For questions related to the remote control of devices and the design of remote controls.

0
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1answer
66 views

Drone's Remote control not powering on! [closed]

I am using bayangtoys X16 GPS drone. I managed to solder the "alfa APA-M04 7 dBi gain RP-SMA directional panel antenna Wi-Fi" on the board, and it was working absolutely fine. Until, I put hot glue on ...
1
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3answers
46 views

Difference between lower and higher current rated ESCs and electric skateboard questions

I am starting a project and would like to build an electric skateboard. Here are the specs for the parts that I have gathered so far: a. Two 90mm wheels that each contain a built-in BLDC motor. The ...
1
vote
1answer
91 views

Why we can't copy car remote patterns?

I have a set top box remote that I can use to control set top box as well as TV by using the set button on my stb remote.That remote can copy any remote IR pattern but when I tried it on a car remote ...
-1
votes
1answer
35 views

Lpf ramp response intution [closed]

How to intutively draw ramp response of low pass filter intutively . I am able to do it from laplace transform but i am unable to understand..
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2answers
88 views

Low Pass RC Filter for Load Cell

I have a load-cell setup with some noise that I would like to filter out. I have a vague understanding of low-pass RC filters. I have a strain gauge with 350 ohms of resistance (no load). How can I ...
2
votes
1answer
319 views

how does ceiling fan remote implement reverse function?

Most ceiling fans come with a remote control transmitter/receiver pair. The transmitter is hand-held or wall-mounted, and the receiver is installed in the ceiling box. Input to the receiver is a 2-...
0
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0answers
32 views

Inducted LED control circuit design

I would like to build a circuit to control 4 LEDs via an inducted current. I would like the inducted current to provide the power for the LEDs, however I would like the LEDs to be lit in a certain ...
2
votes
0answers
131 views

A curious 433 MHz signal to decode

I bought a cheap set of remote controlled power sockets and I want to integrate them into my home automation system. So I got a 433 MHz receiver for 1€, connected it to my Arduino and tried to decode ...
3
votes
3answers
192 views

Yet Another question on using GPIO to short a remote push button

OK, I bought this little remote-controlled Ac outlet thing for $1. It controls 3 outlets via RF. I didn't realize it was RF at first, but I currently have my BeagleBone Black doing a bunch of home ...
0
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1answer
53 views

Low power local area radio controller chipset [closed]

I have a project where I need to remotely control up to 128 individual relay boards within a maximum 30 meter radius. I need each of these wireless relay controllers to be uniquely addressable to ...
1
vote
2answers
184 views

Are IOT wireless network protocol right for high throughput point to point communication?

I am trying to build a "professional" 2 way point to point radio system (like this) to control a RC 1/10 scale car (like this ) using UART, the challenge I am currently facing is finding the right ...
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0answers
33 views

Bluetooth Controls instead of R/C Controls for simple Holonomic robot

I am new here and with little experience in electronics. I have assembled this holonomic robot, see link: https://shop.wickeddevice.com/product/omniwheel-robot-complete-kit/ It has 3 Omni-...
0
votes
1answer
32 views

Is it possible to read/pair ESC (2.4Gz?) signal [closed]

I'm new to ESC, sorry if this is a noob question, is it possible to somehow pair or read the battery level from an ESC? What I'm looking for is to read the battery level from an ESC electric ...
2
votes
1answer
147 views

Replace batteries of 20 TV remote controls

For an artistic installation, I need to use 20 TV remote controls. So I would like to replace their batteries (1.5V * 2 = 3V) with a single power supply. How to connect the remotes controls? In ...
2
votes
2answers
63 views

Does the remote car door keyfob in today's automobiles change its code with every use?

I am just wondering why other keyfobs do not open my car door and thought every signal would have to be unique. So I did some research and they use a rolling code so in fact the code changes with ...
1
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0answers
23 views

How does the PT2264 determine how many address pins are in use?

So, I'm looking into making a little device which uses an 433MHz transmitter and a PT2264 or LP801B. While reading the datasheet for the PT2264, I'm a little confused on how it is determined, how ...
0
votes
1answer
50 views

Chinese FrSky radio receiver, what is this component? [closed]

I have one of these cheap chinese RC receivers mounted on a quadcopter. After one too many hard landings this component broke into pieces. I would like to try repairing the board by replacing it, but ...
2
votes
1answer
48 views

How to observe the signals of a radio remote control using CubicSDR?

I have to admit I'm a complete newbie with regards to radio frequencies and such ... :-( Thanks to this site I've been able to find out what transceiver is being used in the remote control I'm ...
5
votes
2answers
801 views

Why IR remote waveform is a saw-tooth or am I measuring it wrong

The measurement circuit is as follows: simulate this circuit – Schematic created using CircuitLab The waveform looks like this in my measurement: Is this because I'm measuring it wrong and ...
1
vote
1answer
72 views

Find datasheet for an industrial radio remote control

At work, we have what seems like radio-based remote controls to control the window stores, the light and the temperature. We'd like to find out what the commands are that are sent by the remote ...
0
votes
1answer
35 views

How to Increase Velocity of a Servo motor, relative to resistance?

I am building a RC car which increase its speed to compensate any obstacle on its way. A simple 4 wheel RC car, with current sensor on the two front wheels, when an obstacle is placed in front of the ...
-4
votes
2answers
69 views

Is there a laser inside this remote control? [closed]

I wa at this store with furniture and saw this control and was looking at it and in the middle of one of the buttons there was a really bright green light under it and it felt like it stunned me I ...
1
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0answers
32 views

HCS301 Remote External Antenna

I would like to amplify the range of my remote control which is built on HCS301 chip (it's a KeeLoq remote). I'm not sure where should I solder the external antenna to be the most effective. Also, I'm ...
0
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0answers
41 views

Locating ground and other pins on circuit board

I am a beginner attempting to learn how to hack RC cars like is demonstrated in this video. My problem is I can't spot the ground pin and the other pins related to the wheel drive functions except I ...
0
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0answers
45 views

Max Current Supplied By Lithium Polymer Battery For QuadCopter

I am just to build my own quadcopter and I have just started this month. I have a question regarding the battery to select. Here are the components I have bought: 4X Racerstar Racing Edition 2205 ...
0
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0answers
42 views

RC relay range drops dramatically when under load?

I'm trying to control an 12V air pump remotely, so I used a 12V RC relay as the like below, so everything in the system is 12V. http://www.ebay.com.au/itm/Smart-DC12V-4CH-Channel-315MHz-Wireless-...
-1
votes
2answers
68 views

Can an IR blaster built-in to some devices damage appliances? [closed]

I once have a tablet (Samsung Galaxy Tab 3 GT-P5210) that has an IR blaster built to it. I sometimes use it to control the TV on our house if the remote is lost. Now, I don't understand that if I ...
1
vote
3answers
56 views

How to provide power to Arduino after a remote button is pressed

I have one of these IC 2262/2272 Wireless controller and receiver. If managed to connect it in such way that the Arduino blinks a LED after a button is pressed, it works fine. My question is, is it ...
0
votes
2answers
574 views

Keep relay energized longer with capacitor [closed]

OK, I've found plenty of questions about relays where either the person wanted to have event 1 at time T trigger the relay at time T+delay (like flip a switch and have the relay energize 2 seconds ...
1
vote
0answers
19 views

rc series circuit voltage didiver in resistor and capacitor

how to see voltage in RC series circuit i have 27 ohm resistor and capacitor 85.71 micro farad and total voltage is 45 v. how many voltage drop in resistor and how many voltage drop in capacitor?
1
vote
2answers
996 views

What RF transmitter and receiver to buy for long range

I have 3 main questions that I want to know. I mostly worked with computer science but recently I got an arduino to play around with. I also extracted some motors from an old rc quadcopter that i had. ...
1
vote
0answers
186 views

How to switch on PixMob-like led bracelet?

I've a led bracelet, which was switched on and controlled by concert organizer (the bracelet called 'fanband' and according to the official site controlled either by special remote or by sound). I ...
3
votes
5answers
158 views

Can adding a copper plane to the 2.4GHz antenna amplify signal strength?

Hello, I bought a 2.4GHz controlled RC car from a Chinese vendor. Under the car chassis, there is a 30mm x 20mm copper plane attached. Surprisingly, the customer's service team replied that "it's ...
1
vote
1answer
496 views

How to connect a 2.4ghz 4ch RC receiver to a brushed dc motor controller?

I currently have a 36vbdc 800w motor connected to a 36v 800w motor speed controller (similar to what they use to control ebikes) just like this one: https://aws.robu.in/wp-content/uploads/2016/02/...
0
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0answers
37 views

WEMO switch and Sodium lighting

Why can't the WEMO switch from Belkin be used with sodium discharge lights? I am investigating the purchase of a switch to remote control some driveway lights which I believe are sodium discharge ...
0
votes
0answers
472 views

BLDC torque control using arduino and a motor controller

I am trying to remote control a BLDC using Arduino and a motor controller by controlling it's torque. The process would be like this: The user moves the stick on the remote controller, the Arduino ...
1
vote
2answers
546 views

How does this Pierce Oscillator work?

I am currently investigating on how to build RF transmitter and receiver circuits to try and build an RC device from scratch. I've come across this Pierce Oscillator Diagram and build it on a ...
0
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0answers
65 views

Long Range and High Speed RF module?

I'm dealing with a project RC plane. I can not find the module I need, because I have no technical knowledge about RF. I found some modules such as HC-12, Si4432 and nRF24L01 + PA + LNA during ...
1
vote
1answer
70 views

Are there any ways to improve this ISR - STM32F401RE?

I am currently coding a flight controller from scratch and am currently working on the module to decode the incoming PPM signal. Keeping in mind that this is an ISR, I've limited its functionality ...
1
vote
2answers
345 views

Transfer function of three cascaded RC filters?

I am looking for the transfer function of three cascaded RC filters: I have found the solution for two RC cascades (components differently labeled): I need an analytical expression like this one for ...
2
votes
1answer
99 views

Switch from one battery to another when one is discharged/disconnected?

I'm trying to figure out how to switch source power from one battery to another when one is dead or disconnected. the circuit needs to be able detect the loss of power on the jettisoned battery and ...
0
votes
1answer
44 views

Infra red remote control very short range

I bought a house that has a few LG split air cons. Whenever I want to use them I need to get like 2 meter close to them for the remotes to work which feels too short and annoying. These units are 10 ...
0
votes
0answers
43 views

What is the COM pin for on RF receiver

I'm doing a project for school and we have to use the supplied 12V battery, Arduino, and RF receiver. The RF receiver has 6 out pins, 12V, ground, and COM. Obviously the outputs go to the Arduino and ...
0
votes
1answer
106 views

My RC Time Const. Calculations are wrong. Circuit changes my input signal

I have a simple RC circuit of 22 ohms and 3.3uF My measured values put the resistor at 22.10 ohms and the cap at 3.15 which gives me a time constant of 68.5 uS The signal applied is a 100Hz Square ...
-1
votes
1answer
118 views

Crestar remote control operating frequency

I have tried very hard to find the frequency that my remote is using. I've took pictures of the inner board and the remote. Please help or guide me on how I could find the frequency.
2
votes
0answers
229 views

Reverse Engineering Panasonic AC Remote Control Circuit

I have a Panasonic air conditioner which comes with a wired remote controller CZ - RD513C attched to the wall and has no infrared. I want to make a circuit connecting to STM32F746 to automate the ...
1
vote
1answer
119 views

Android-Based Projector Remote Controller

I am planning to create an android application which is a remote control for projector. The android application should do the following: Control the Focus Ring of the projector using Stepper Motor. ...
-1
votes
2answers
184 views

RF reciever to detect unknown drone RC links [closed]

I am currently developing anti drone system as a project. Therefore,I am in need to make a RF reciever/Sensor , which can detect RC links(Drone-controller RC link) at multiple frequencies(488 MHz/2....
1
vote
3answers
142 views

DC Calculation: RC parallel to C

I've been running into problems calculating the DC behaviour the following circuit: simulate this circuit – Schematic created using CircuitLab When I try to calculate the voltage of capacitor ...
0
votes
1answer
74 views

RC Inverter delay

I was trying to solve the below question. A long wire may be considered as a series of RC element where R is the serial resistance and C is the ground capacitance. In figure 1, there is no ...