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Questions tagged [remote-control]

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

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2answers
138 views

Light circuit for RC car

I'm building a small light system for an RC car, this is the schematic: The power source is 5.5 V. These are the LEDs that I am using, KKHMF 100個 3mm LED 発光ダイオード LED電子部品バッグ 5種類 各20個 - two white, ...
2
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2answers
132 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 ...
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2answers
42 views

Solar RC Airplane – Trouble with Mini Solar Lipo Charger

I'm in the process of building a solar powered remote controlled airplane. My general idea was that I have 5V from the solar panels powering the receiver, the ESC, two servos and a brushless motor. If ...
1
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1answer
68 views

Single transistor IR repeater

I need the IR repeater to pass IR (TV and so on) remote signal to remote devices in some box (pass the IR signal from outside the box). So, I bought a cheap IR repeater on single 2TY transistor, 4838 ...
0
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2answers
484 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
614 views

High side RC ESC switch

I've been designing a test bench for RC propulsion systems and for that I thought it would be nice to be able to switch the power to the ESC on/off. For this I designed a simple circuit which I ...
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1answer
53 views

4x 2:1 Multiplexer with multiple select lines. Does that exist?

I have been checking different supplier websites, and can't seem to find what I am looking for so I am wondering if it even exists or not. I am looking for a 4x 2:1 MUX IC with 4 select lines. I am ...
2
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0answers
326 views

Reverse Engineering Panasonic AC Remote Control Circuit [closed]

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 ...
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2answers
831 views

Battery Elimination Circuit Powering Flight Controller

I am putting together a quadcopter, and one of the things I've stumbled across that I don't quite understand is Battery Elimination Circuits (BECs). The Flight Controller on my quadcopter is a modded ...
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2answers
54 views

Is it possible to replicate a Novotron 522 remote control?

The signal I want to replicate is to open/close a garage door, operated by a Novoferm motor. The remote control used is a Novotron 522. The description states this is 2-channel remote control, ...
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0answers
67 views

Automate sequence of different remote control presses

I've got the following setup I would like to automate: Press button A on a remote to turn the alarm system off Press button A on a remote to open the garage door Press button A on a remote to close ...
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0answers
53 views

Selecting RC filter components for half wave rectifier

I have a circuit where Input is a Sine pulse of 40V Amplitude and the circuit is as shown: After redtifier diode , there is a RC FILTER. I have used a tantalum capacitor and 0603 resistor. I was ...
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0answers
43 views

220 volt ac to 12 v dc converter without voltage regulator

I want to design Additional RC Filter. My input is 220V AC and I want to observe 12 V DC output. I am designing 100 Hz with a full-wave bridge rectifier. My question how can I find the output of ...
0
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3answers
88 views

Speed limiter - 24v Motors

I'm looking for a way to limit the speed of some wheelchair motors in order to gain better control when using them in my RC device. Currently the motors are very sharp and don't ramp up to speed, ...
0
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1answer
84 views

What are different ways of remote communication two circuits?

I am doing a project which requires remote communication between a microcontroller and a circuit containing 2 stepper motors. I am using a PIC24FJ32MC101 because that's what I had laying around the ...
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0answers
65 views

SDS7102 DSO: No command to put scope in X/Y mode remotely?

I've had an SDS7102 (Owon) scope for little over a year, and bit by bit wrote a remote control program. As I use a LAN connection, things a quite a bit more complicated than USB, it seems. But I've ...
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1answer
65 views

Using 1 IR receiver for 4 LED controllers

I've purchased 4 cheap LED controllers from China for controlling 20m LED stripes. After setting the system up, I encountered the problem that at least 1 of the 4 LED controllers doesn't respond to ...
1
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3answers
96 views

Help identifying an SMD component [duplicate]

I need help identifying an SMD component it is a small(1 mm X 1.5 mm) black part with an "O" written on top if it. I think it is a Schottky diode for reverse polarity protection ?. (Source, first ...
1
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1answer
97 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 ...
0
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1answer
170 views

433Mhz Remote Control Antenna Selection

First I want to thank all of you who come here and help others. That is very kind and unselfish of you! This is lengthy but I want to make sure I tell you everything you need to know to answer this ...
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2answers
320 views

Why do the motors for my Arduino RC car not respond to any command after the first command is received sometimes?

I'm making a mini RC car with an Arduino nano and wireless communication with RF433, with 2 motors with 2 motor drivers (L293D). I use 4 1.5V batteries to power the arduino nano and another 6V battery ...
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3answers
74 views

Voltage in an RC Circuit

I made an RC curcuit on a breadboard gave it a of 25V measured the voltage across it with an oscilloscope. During my experiment it has come to my attention that the peak voltage level was getting over ...
0
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1answer
42 views

I want to use 4x MicroServo with 9V battery

I have 4 Tower Pro MicroServo 9g SG90 I want to power with a battery. This is the datasheet I found online. I have a small breadboard and some resistors laying around (220, 1k, 10k), and a 9V battery....
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2answers
533 views

Using an ATS interface to remotely start a generator

I am trying to use the ATS (automatic transfer switch) interface of a generator to set up a remote start system using a microcontroller with a cell phone modem and relay bank (for a rural microgrid ...
8
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3answers
2k views

What does n/o and n/c mean on a schematic diagram?

Okay so I have two questions. I am looking at a schematic diagram of a remote control for a toy car and I can't seem to figure out what the "n/o" and "n/c" components stand for that are attached to ...
2
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2answers
480 views

Fixed a garage remote by breaking it

I have a garage remote that stopped working. I changed battery and it worked again, but only for a few days. I measured the resistance between the poles of the battery terminals and it was about ...
0
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1answer
105 views

How to power two motor drivers and Raspberry Pi with one LiPo battery?

apologies in advance for the lengthy question. I'm working on creating a remote controlled rover. It is controlled by a raspberry pi, and driven by two MDD10A REV2.0 motor drivers (one for the left ...
0
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1answer
40 views

Turning on a PC with a Orange Pi

I have been working on a system which allows to turn on a PC without physical presence. I'm using an Orange Pi platform with a board designed for testing the embedded systems. My assumption: green ...
0
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1answer
438 views

RC transmitter and receiver for Raspberry Pi possible? [closed]

I've got a pet project in which I'm trying to write/build a self learning autopilot for my rc plane. I've got a Raspberry Pi with an IMU and a pitot tube in the plane and it can now control the servos ...
0
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1answer
75 views

GPIO input state with undefined voltage

I am using PIC32MX350 series controller, on one GPIO , that is defined as input , and input that pin goes form one SMPS (PN : - PSC35 , IO Name :- AC out). Since SMPS IO is open drain we add a pull up ...
6
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3answers
1k views

Does a 40 MHz radio frequency have any interference to Bluetooth signal?

From my understanding, the Bluetooth signal is using a 2.4 GHz frequency. However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected. ...
0
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1answer
27 views

Using a x-speed transmission with a DC motor

I would like to ask whether there is any point in using a transmission with different gears (like the gearbox in a car) with a DC motor? For instance in an RC car. Are there any benefits to using a ...
0
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4answers
1k views

Calculating Fc (cutoff) of series to RC to ground on inverting input of non-inverting amplifier

Regarding the chosen answer for: How does this OP-AMP non-inverting amplifier work? The following circuit is given, and it says that $$F_c = \frac{1}{2\pi R_1C_1}$$ simulate this circuit – ...
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3answers
2k views

How does connecting a capacitor across a DC power supply with varying voltage produce a constant voltage?

I'm a British high school student (doing a certificate called A levels) and question 16 in this past paper (1st Link ) is baffling me. The answers to the questions are on the mark scheme (2nd Link). I ...
2
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1answer
55 views

Remote Start for my Dust Extractor

I have a 1.5kW 220VAC 1 Phase dust extractor. It's controlled by what looks like a DOL switch KJD17B/5T (so I assume the 5th terminal is an overload). KJD17B Datasheet Wiring diagram on duct ...
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7answers
12k views

Is there a device that can push down on a button with a wireless remote control? [closed]

I'm looking for a device, perhaps one that releases a small piston, tiny object, or block, that can press down on a button via wireless remote control. The button is about the size of a dime, and is ...
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1answer
300 views

What's the frequency used by the remote control of this RC car?

I'm trying to find out the frequency used by my RC car. In particular, what band it runs on (27MHz or 49 Mhz or something else). It looks like this: And the back view:
9
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2answers
3k views

How do universal IR remote “codes” work?

It is easy to find this kind of reference when searching for IR protocols and codes for specific equipment. The actual IR transmission contains far more data than these small codes can hold. What ...
0
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1answer
71 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
80 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
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5answers
2k views

variable-speed focus PTZ protocol

I'm building camera systems to mount on top of a TV tower. When storm clouds roll, in the video is displayed on the TV weather report. No one wants to climb the tower to manually pan and tilt and zoom ...
1
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1answer
102 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
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2answers
199 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 ...
1
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3answers
2k views

RC circuit as clock source

I am not understanding something very fundamental here , I have read that an RC circuit can be used as a clock source. From this I assume a DC input. Playing around with my oscilloscope the only time ...
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1answer
144 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..
2
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1answer
840 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-...
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0answers
33 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
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0answers
313 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
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3answers
250 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
55 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 ...