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Questions tagged [remote-control]

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

37
votes
7answers
69k views

What do I need for a basic RF circuit?

I'm looking for any resource that can help me build a very very basic RC circuit. I'm talking as simple as using RF to turn on/off an LED. The purpose of this circuit is for research and education. If ...
9
votes
1answer
4k views

How to use an ESC

I'm new to RC related modules. Today I got my Hobbywing's Skywalker 20A brushless esc. Manual is here. I also have a brushless outrunner motor (HL3512) I don't ...
0
votes
1answer
394 views

Can we use PWM on the cheap RX{n}[letter]-TX{n}[letter] Integrated Circuits

The market has been inundated with cheap RC toys. Most of them use the RX/TX Integrated Circuits that have 5 to 9 functions: PT0090 Series Datasheet RX2/TX2 Datasheet All of them operate on an ON/...
3
votes
2answers
897 views

controlling canon camera

i have a canon EOS 550D and i want to control it from computer. i had good result with taking photos with an ir led, arduino, and multi camera ir control library but i want to control also focus, and, ...
3
votes
1answer
99 views

How do remote access devices work without a cellular connection or internet

This is a sample of one such device i am talking about, i seen a wireless "external hard drive" like electronic at best buy that you can access movies from it without wifi and i have been constantly ...
4
votes
1answer
2k views

Options For Controlling an RC Car

My friend and I are trying to design a remote controlled car and one of the aims is for the controller to be a smartphone. The original idea was, have a transmitter plugged into the audio headphone ...
8
votes
3answers
7k views

Why would an IR remote circuit use one resistor/transistor pair for each LED?

I've done some reverse engineering work on the protcol for a remote that... sucks. I'm replacing it with one of my own design, but while I've improved on the interface, the range and view angle of my ...
3
votes
1answer
701 views

Connecting to external chip (device)

I want to create mobile app that will control some external simple mechanical device. I want to use bada wave s8500 for this purpose so have access to Bluetooth and WI-Fi. Now I'm looking for advice ...
3
votes
4answers
2k views

Arduino: Controlling a RC car remote

I have a Carson Reflex Wheel remote control for my RC car. It has two potentiometers, one for accelerating and one for steering. My goal is to control the RC Car from my PC by sending commands via ...
-4
votes
2answers
484 views

I broke my steering coil, where could I get I new one? [closed]

I broke this coil: Does anyone know where I can pick up a similar coil? It was placed in my Nikko RC toy car (Nikko Tiger 2).
5
votes
1answer
1k views

Sending a analogue signal?

I have this old Nikko Tiger 2 RC car I've been playing around with. At first I disassembled it and played around with the parts and my parts (motor controller++). But then I asked myself, can't I use ...
4
votes
2answers
363 views

Why don't my coil work?

I disassembled my old Niko RC car today. Thought I could play around with the parts. But what I can't seem to understand is the coil. The powersource of the rc car is a 7.2v NiCd 620mAh battery. And ...
0
votes
2answers
172 views

How do I get this spool to work?

I have this spool (image) and did some testing with a multimeter before I disassembled it. It's working range was [-3.3v,0v,3.3v]. When I tested it by just applying the battery after disassembly ...
2
votes
2answers
2k views

Will this power supply fit my LiPO charger? [closed]

I just got my brand new LiPO battery charger. It is require 12 volt pover supply. I saw people are using car battery, pc power supply to this charger 12 V. but i'm not sure about current it is ...
0
votes
1answer
361 views

Electric Power Systems for a qudrocoper base on 30amp Speed Controller and NX-4008-620 - NX-4008-620kv Brushless motor

I'm in mood to put together my own quadrocopter. Just before I ordered parts wanted to some experts to tell me if configuration if compatible enough. Or maybe you have better suggestions for this ...
4
votes
3answers
4k views

IR to audio converter (frequency and level)?

What kind of IR detector and converter circuit could be used to down-convert an IR remote signal (in the neighborhood of 35 to 45 kHz) into audio frequency signals (0.1-20 kHz) of the appropriate ...
4
votes
1answer
2k views

BLDC Regenrative ESC and LiPo [closed]

I am currently working on a project where I want to implement a Brushless dc motor (like the Turnigy C2226 - 1800kv) to run in-hub of an RC car. I need this entire project to be as lightweight as ...
2
votes
2answers
213 views

Given a source of mechanical input, can an RC motor charge it's own battery without extra cicuitry involved?

Background I took my RC quadrotor to a windy field this weekend to fly it around. After the battery died, I retrieved it and while carrying it back home, I noticed that the wind was spinning the ...
12
votes
3answers
16k views

How to measure current to a DC motor?

I'm trying to measure current to a DC motor on an RC car I took apart. The car is powered by 3 AA batteries and seems to be made of three different boards. Two of the boards are for switches and LEDs, ...
3
votes
3answers
815 views

tiny RC receiver for bristlebot?

I made a small bristlebot. my version can turn left and right using two vibrators and is controlled by an ATTiny uC. I would like to add remote control functionality so i'm asking what's the simplest ...
3
votes
2answers
12k views

Activating Electronic Speed Control with Arduino

For anyone else looking at this, most of our problems seemed to result from not having the pulse range quite right. We eventually hooked our ESCs up to a standard RC controller and used an ...
3
votes
3answers
702 views

Remote Control Design

I am want to design a remote control. All I need is the appropriate IR LED and the Receiver to use, that will yield optimal performance. i need real practical experience here. What is the best ...
8
votes
3answers
26k views

Algorithm for mixing 2 axis analog input to control a differential motor drive

I am looking for information about how to implement proper mixing of 2 analog joystick signals (X an Y axis) to control a dual differential motor drive ("tank like" drive) using a uC (ATMega328p in my ...
2
votes
1answer
202 views

R/C BEC with a 12v lead acid

Pretty much all BECs (Battery Eliminator Circuit) are rated to work fine with 12v input but I haven't seen any that mentions lead acid batteries. Almost all datasheets for BEC regulators have write ...
3
votes
1answer
1k views

Cruise control implementation

I am doing a project that requires that I implement a cruise control system on an RC car using a GPS for feedback. I have implemented PID controllers before, but this is a little bit new to me ...
4
votes
2answers
984 views

Reliability of servos

I am building an RC aircraft, 10kg weight range. It is supposed to perform long flights (20km+), so reliability is my main concern, mainly on servos controlling Flight control surfaces. How ...
11
votes
3answers
2k views

Capacitors and motors

Every RC car I've cannibalized has had a small ceramic capacitor soldered on to the contacts of the motors. What is the purpose of having this? What happens to the performance of the motor with out ...
12
votes
4answers
28k views

Stall torque for servo, kg/cm?

I've recently bought some cheap TowerPro SG-50 rc servos from ebay. They seem to work quite well, and despite their small size they are quite strong. But how "strong" are they actually. The datasheet ...
3
votes
1answer
459 views

Rotation span of SparkFun ROB-09065 servo

Does anybody know what the rotational span of the ROB-09065 servo from SparkFun? And even better, is there a datasheet available anywhere?