Infrared transmitter and receiver

I want to make a gadget which sends a few kb of data via infrared and also receives data via infrared with a timestamp. However, I am stuck as I have only used arduinos before and I have to design a circuitboard which I have never done before, with PIC microcontrollers (must be cheap ones). I need help a) choosing a microcontroller and b) assembling all the components into a circuitboard (ir transmitter, receiver, microusb port to transfer data to pc, battery). Gadget will eventually be portable so make everything light. Thanks Khalid

Topic by khabro   |  last reply

Receiving Newsletters Issue

i have changed my email addy in my instructables account, but am still receiving the newsletter in my previous email and not getting it in my new email. it did stop coming to my previous email for a little while (as i may have unsubscribed it), but then recently started up again, yet am still not getting it in my new email. i'm not about to unsubscribe (again) my previous email thru the newsletter Update Profile / Unsubscribe link till i am recieving said same newsletter in my new email. what's the deal?

Question by MelPhleg   |  last reply

Wireless internet receiver? Answered

Is there any device that you can plug into your router in one room, and then connects wirelessly to a receiver in another room, and then that connects to a device such as a laptop? What I am looking to do is take the ethernet jack that is in my moms office and hook the transmitter up to it. Then take then take the wireless receiver and put it in my room to hook it up to my Apple Time Capsule. From the Time Capsule I would send the wireless signal to my laptop sitting right next to it. If you are thinking I could just hook my Time capsule up to the modem in my moms office, thats the way we have it set up right now, which gives me a very weak internet signal, if any, so if there is any device that will do this it has to send out a stronger signal than the Time Capsule. If you don't understand what I was saying you can look ant the diagram below. Is this possible?

Question by DBMods   |  last reply

wifi receiver/repeater??

Hi everyone, i looked at the instructable of the wokfi antenna and the site of where it all started on that topic ( ).i found a free wifi access in my area, i got 1 pc (ethernet card+ usb wifi dongle), one laptop (wifi), a nintendo wii (wifi) and an old pc (233mhz, ethernet card) also a spare ethernet pci card and a pcmcia wifi not in the laptop, laying around .here's what i would like to do to have internet for free:- get the signal from the free wifi access point to the 233 mhz pc- use that pc as a firewall- then send the signal thru the ethernet cable and with another wifi (the pcmcia in the pc with a pcmcia to pci adapter or another usb wifi dongle, witch ever is cheaper) because my laptop can't reach the free wifi access point, it's to far..i'm looking for help on this please, i'll do an instructable with it because i think it could also be usefull to other. that whole idea of free wifi to anyone could be used here. because, let's say in a block, dorm, appartment a far away wifi connection could be shared localy. i've been digging for an intense 2 days now but my knowledge about networks and english (my first language is french) aren't that good so if anybody got an idea where to start looking it would be very appreciated.

Topic by novielo   |  last reply

Help with Receiver/Transmitter and attaching motors?

I have a GWS 2.4GHz transmitter and receiver, seen here. Essentially, I am attempting to make a sumobot with two motors taken from an electric screw driver (two wires positive and ground) The receiver is marketed for model airplanes, but I was assured it also works with motors. I am unsure what to plug into where. The receiver has three pins per channel: positive, ground and signal. Does anyone know how I should set this up?

Question by gotparsley   |  last reply

Can I use an IR receiver for a low voltage application (1 1/2 - 4 volts) - (1- 2 amps)?

I found one with the proper voltage but is .6 mAmps

Question by undersea   |  last reply

Pioneer SX-626 blows a speaker fuse

The sides are fuse protected and the right side blows a fuse immediately don't have enough fuses to test exactly when it blows.

Question by TheReconranger.   |  last reply

Whats a good cheap rc pack for a beginner?

Hi every one Im a novice at this, so I have a question: Whats a good cheap rc pack for a beginner? Also what does channel mean, is it how manyservos it can have?

Question by tranoxx   |  last reply

USB Infrared Receiver for PC

 I have been wanting to build a USB Infrared Receiver because I do not have a serial port, and I do not want to use a USB to serial. What do you all think of this idea?

Topic by colton.asu 

Building audio receiver for car?

Kindly bare with my stupid queries as i am new to all of this.   I searched different projects on this website but I couldn't figure the the connections properly.   I want to build a bluetooth audio receiver that can be used in the car.   I have an old bluetooth dongle that I used to get bluetooth connectivity on my desktop. Can it be used? If yes, then please describe the connections of the female 3.5mm jack with a diagram as I am a newbie.  Will the sound quality be good?

Question by AaravC   |  last reply

FM Wireless Microphone receiver

About a year ago I got one end of an wireless microphone system at a yard sale. As far as I can tell, it is the sending unit. The recieving unit is lost to posterity, which is why it was so cheap, and has since been collecting dust. It has an RCA line in, 1/4 inch microphone in, a squelch knob, an output knob, a two-foot antenna, and a power button. It says it operates at 49.83MHz FM. I don't have a receiver that will pick up that frequency, and I'd like to know what it would take to build one. Perhaps mod an existing FM radio?

Topic by Rishnai   |  last reply

Connect ESCs with RC receiver?

I am trying to connect 4 ESCs with a FlySku 6 Channel Receiver. I managed to connect all four of them to the throttle channel and it works fine. However, is it possible to connect them to other channels wiht them being plugged in the throttle channel at the same time? I am making a quad-copter and I am not sure what channels to use? like I know that we need the throttle channel to change the throttle and the motor speed. but like to change the pitch, roll and yaw, we need the other channels too right? So can anyone please guide me through it? I am using a flycky CT6B transmitter and a 6 channel receiver.

Question by Bam Boy   |  last reply

Help with Bluetooth Music Receiver

Hi everyone. I have this problem I don't know how to solve. Recently I bought a Linocell Bluetooth Music Receiver to plug in my car. I wanted to rip away the battery and make it to turn on when I turn started the car. The problem is that the On/Off has two functions: 1. The obvious On/Off function (holding the button for 3-5 seconds) 2. Search mode (holding the button for about 10 seconds) How and what do I modify for it to work the way I want? I can upload a picture of the circuit board if it helps.

Topic by homan   |  last reply

where are the outputs on this wireless receiver Answered

Hi, i am planning on buying, and another instructables member already has, buying this wireless receiver (comes with a transmitter), for use in whatever we desire to use it for! heres lins to two images of it, i dont understand a bit of it, only i see the inputspostive and negative, and the outputs positives, but thats it , which make no sense to me. anyway, what i know is where the positive and negative terminals are, also, the othe rmember has already tried running this using the ground terminal as the negative for the outputs, but says it does ot work at all, and that is the only thing which seems to make sense. also, this is the only thing the ebay seller could give me in regards to operating and installing this chip into anything, because they know nothing of it, and asume that the ebay users who buy it already know how to use it. anyways, there are several ports d0,d1,d2,d3 vt, vcc, and ground al the d's are the output ports, vt is called switching voltage and is assigned to an output depending on what button is pressed on the receiver, and thats all the information i have gotton. and from what i know, its inoperable, but then again, i dont know much about that stuff also, who ever shos me how this work, i promise wil get a "best answer" from me.

Question by oldmanbeefjerky   |  last reply

Electricity Transmitter and receiver. is there anything such as that.

Electricity Transmitter and receiver. is there anything such as that. simple though. when i press a button it transmits a signal and the receiver receives this signal and releases electricity. heres a little diagram: O------T             B-R-----M O=Button T=Transmitter R=Receiver B=Battery M=Button -=Wire  =Air? the receiver is powered by the battery

Question by pkataria1   |  last reply

Transmit & receive 4ch audio

I am looking for a cheap solution to transmit and receive 4 channels of audio.Transmitter may be bulky, but the receiver must be small. (it is for an interactive installation)Audio The 4 channels will be converted to 2 channels stereo, so in total 2 stereo signals of audio need to be transmitted and received (within ~10 meters). Note that achieving the best audio quality is not of top priority.Technique Should I be looking at FM / AM of Bluetooth methods? I've looked at:, but it would be nice if there is also a paired receiver board.It would be nice if the proposed solution is scalable to 6 channels (3 channels stereo).

Question by LudoP4 

Build GSM Signal receiver ?

I want to build device that only find GSM signal...I do not need processing signal's .i Just want to know whether the device is in GSM signal reception and receive this signal??

Question by dj_mina   |  last reply

DTH satellite receiver problem

I have a DTH satellite receiver which has a burnt SMPS power supply (image attached). I replaced the burnt components but again when powered with 220V ac supply to test the output voltages the same components burnt again within a few seconds. I could not figure out what is the actual faulty part. If anyone has any suggestion please feel free to answer. My second problem is the satellite receiver board (image attached) has 6 pins for power connection but I could not figure out what voltage is to be applied to which pin. So I was unable to use a separate power supply for the receiver board. The part number can be seen from the image itself. Please look at the receiver board and help me if anyone has any idea about this board. I tried searching in google with the part number but could not find the same board. Please help me. Any suggestion is welcome. Satellite receiver: Hicway ali M3328C(10039)-11

Question by smandal13   |  last reply

how to build a satellite tv receiver?

Anyone know how to build a free-to-air (fta )satellite receiver?

Question by    |  last reply

what can I do with an ir receiver? Answered

I found a fully working ir receiver. What should I do with it?

Question by meh301   |  last reply

Question about Flysky fs-TH9x Transmitter + Receiver?

I plan on getting I have a lot of questions relating to this transmitter and receiver: 1. Is this a trustworthy vendor 2. Can the transmitter/Receiver control heavy duty servos 3. What type of/how many batteries do i need 4. For the transmitter, Can I use 5. Which battery do i need for the receiver 6. Can I charge these  ----- with an energizer charger 7. Will this work for the transmitter 8. Where can i find batteries for the receiver?

Question by rptech   |  last reply

How to make a simple IR remote and the Receiver circuit?

I have an Pot with dc motor (i dont know how they are named). I want to command the dc motor to go the volume up and down. What i need and how i do it? Please help !!

Question by danyelo   |  last reply

Is it possible to use a old mobile as a bluetooth audio receiver?

I have seen several tutorials outlining use of old mobile as an mp3 player especially hook it up with an car audio player (via aux in port). I have a sony ericsson w700i walkman cell phone lying with me. I already am using it as an mp3 player in the car. I wanted to know if i can extend its use further and pair it with my new mobile to play music wireless. If it's possible it might well be used for making receiving calls via car audio too. I know there are several cheap stereo bluetooth receivers out there which can be used for the same purpose but I am interested in knowing if an old mobile can be used for this purpose somehow or not.

Question by rouheet   |  last reply

does anyone know how to program a 433mhz wireless learning code receiver?

I just got scammed, or possibly an innocent mixup, wen i ordered a 2 channel wireless receiver, and received instead a learning code receiver which was valued at half as much. I am now getting my original receiver that i ordered , but get to keep the wrong one as well. the model number is 6802S, and i cant figure out how to get it to work! i tried using the remote that it came with but it wont respond, so i dont reall know what to do to program it. does anyone know? it has a single button and an led when i press the button, the led turns on, when i push a button on the remote, the led flashes, if i press another button it flashed a second time, then the light turns off. when the light is off, it doesnt really seem to do anything.

Question by oldmanbeefjerky   |  last reply

I want to hook my iPad to an older model Sony receiver. Does anyone know how?

I have a ten year old Sony Stereo Receiver and want to play my iPod through it.  Does anyone know of a ready made wiring device, or how I might wire it up to work through the system and speakers?

Question by lewmanjm   |  last reply

how to make this device?

Hi, i want to make a device, please tell me how... there is something that looks like a tv remote . it has 9 buttons on it. And there are 9 light bulbs. when i press each button, each of the 9 light bulbs should light up. for example, when i press button 1, light bulb 1 should light up. when i press button 2 , bulb 2 should light up, button 3 turns on bulb 3, and so on. this needs to be wireless. i have done some research and i have found that i need something called an RF transmitter and RF receiver. I just need some hints on how to make this device. i hope it is clear what i want , english is not my first language, if its not clear let me know and i will clarify.

Topic by create90212   |  last reply

RC transmitter/receiver technical questions

I have a few questions regarding the data rate of normal RC transmitters. Roughly how often does the processor in the transmitter scan the inputs? Each individual channel only operates at around 50/60 Hz, can this easily be increased? I've heard that there are digital servos operating on a frequency significantly higher than 60Hz, do they still operate on the same 60 Hz input? How noticeable would a refresh rate of 5Hz be in the position of the servo when it is in use on a performance model (i'm told that a program the executes in 1/10th of a second appears instantaneous)? Can a 100% duty cycle pulse be supplied to a servo to make it move faster, if the correct position signal is supplied when it reaches the right place? Thanks for any replies. (does anyone know where to find the pinout for the nvidia gt330m graphics card)

Topic by The Skinnerz 

Is it possible to create a speaker wifi receiver and a separate transmitter?

I was wondering if it's been done or if anyone can do this. I have two outdoor speakers that have the negative and positive audio cables. I wanted to somehow connect them both to some kind of adapter that would connect them to a wifi connection and transmit sound to it. I'm open for many different ideas. Thanks. P.S. I can use my computer as a transmitter if it's possible.

Question by aschmois   |  last reply

Can anyone help me build a FM or AM transmitter and receiver?

I found on the www many schematics but not togheter. I want to be a good and a stereo transmitter and receiver. Can anyone help me with a schematics for the both? I need with easy to find and cheap components, because i dont have many money, thats why i want to make and not to buy.

Question by danyelo   |  last reply

Need some decisions on what rc transmitter and receiver to buy?

I want to get started in rc robots,car,planes...... but i dont know what rc transmitter and reciever to buy. Some of the fethures i wanted it to have was 6ch,4-6 degrees of freedome and a price ranging around $50-$110. If it could be bought at or then that would be great. Please give me some advice

Question by fire_kid   |  last reply

I found a Bluetooth transmitter and receiver, does anyone have any idea how I could use it to control other stuff?

I found a Bluetooth transmitter and receiver from Smart Technologies Smart Board (WC6-R1), does anyone have any idea how I could use it to control other stuff? Or what to do with it? It's the Option 4: Use a SMART Wireless Bluetooth Connection on this link, and the gadgets on the image:

Question by Chu Guk   |  last reply

How to check, if the IR sensor (from remote control) is working ???

Hi ... I would like to ask, how I could check, if the receiver (for remote control) is working. I bought on Ebay a used SCART FREEVIEW adapter ... but unfortunately it doesn't work (properly). I'm able to power it up, to see a picture = big logo IKASU. And at the beginning a small pop up menu appears and ask me, if it should start to check for channels. After few seconds it disappears and that's it ... I can't do anything else. There is just the logo :( I check the cables, of the receiver - there are fine, not broken. The RC seems to send signals as well (checked with camera if the IR led lights up). Do you know, how I could check, if the IR receiver works ??? There are 3 pins going out, from the receiver.

Question by zholy   |  last reply


Hey everyone does anyone know any good ideas for making a portable ham radio transmitter and receiver that can fit inside an iPhone case (the cardboard case you buy them in)? It would be good if it was a kit, but it would be better if it can be made using a breadboard and other bits and pieces. Anyone have any ideas?

Topic by simonyu   |  last reply

Remote Control

Hello people! I was wondering if anyone knows how to hook up a computer to a remote control from a bluray, so I can do stuff with the commands from the remote.

Topic by Game Maker   |  last reply

Guide to RC? Answered

So don't tell me to go and buy a small RC car, and hack it. I want to know how to MAKE one! Like, totally MAKE! Where can I find out where to make a simple 2-4 channel RC thingermabob with a range of about 50 feet? I just don't get it, everywhere I look, they make these huge units. My helicopter is 6 channels and the circuit board is no bigger than 2x2, and only has 2 IC's on it. Why can't I find instructions for some small and simple like the circuits you find in RC car! What about Zip Zaps! Their circuit boards are tiny, and work better then the huge circuits you find online! Thx!

Question by HavocRC   |  last reply

FM Transmitted Music: iPod --> Receiver

I'm working on a total customization of my bicycle, and just had to have some speakers. My iPod's earphones are a bit finicky when it comes to moving around with them, and really constricts my hearing of cars, causing me to not be the safest rider. Now, I've tried hooking larger speakers up to my iPod (a few topics on that), but the iPod simply couldn't power them, causing me to need an amp, etc., etc. I'm hoping I've found what I need with this subject. Could I build an FM radio transmitter, to be hooked up to my iPod, and receive my music with a sports radio I have? Would my music be louder, since my radio plays loud? I'm sure I could build the circuit, but it is the technicalities I'm worried about. Thanks!

Topic by Bran   |  last reply

Old RF (cordless) mouse/keyboard receiver device: some ideas to reuse it?

Cleaning my room, I've found an old (pc) iTek wireless mouse/keyboard set. So I think: "Damn, this is a radio input/output device... what can I do with it?". I'm not able to work with electronic (I've only a little soldier skill), but I don't want to throw away this object. Any idea to re-use it? Thanx.

Question by    |  last reply


How can i build satellite receiver and feed it to television directly?

Question by    |  last reply

How does one make a simple radio with a transmiter and a receiver? Can someone better explain a passive RFID tag?

I use a fm transmitter and a fm receiver to connect my tv to my computer speakers. The device is not very cost effective and I tried to make my own transmiter and receiver that had one frequency. I then learned about passive RFID tags and wondered how it could both transmit and receive a radio wave. And it only uses a memory source with an antenna in the form of an inductor. I began to wonder if I could make a tranmiter and receiver like an RFID tag. There is so much about radios in general that I still can't comprehend.

Question by mcguyverzboss   |  last reply

Wire IR remote directly to the receiver?

I have a 5.1 Skpeaker system and the remote is busted.  The Sub enclosure only has a power indicator light and the IR receiver. Would it be possible to either manually increase the volume and bass or somehow connect the remote via cable to the receiver?

Question by kokaine   |  last reply

Need help with RC plane transmitter ---> Flysky FS-TH9X + R8B receiver?

I bought FS-TH9X thinking that I can use it to control a land robot. I only need it to move a few 180 degree hitec servos My problem here is that I've never worked with RC plane transmitter or receiver --- I don't have a clue on how to operate or program it. If you have FS-TH9x or are a RC plane enthusiast/expert, please help me I urgently need to know how to control 180 degree hitec servos  I know i'm stupid for not researching the product before buying it but youtube only has videos on modifications or unboxing, forums only have specific questions, and the manual just confused me.  Any help is appreciated, Thanks 

Question by rptech   |  last reply

Substituting the AS119 diode in an aviation receiver.?

I have a 118MHZ to 136MHZ aviation receiver KIT I purchased on ebay. TheAs119 diodes have been replaced with !N4148s. I know these are wrong. Can anyone suggest a substitute for the AS119. Thanks Ken

Question by kadamak   |  last reply

Arduino GPS/GLONASS/Beidou Receiver

Http:// This Arduino board with GPS/GLONASS/Beidou looks interesting. What is the advantage of having GLONASS or Beidou? Although my phone only has GPS, but seems works quite well finding places.

Topic by tinkerboy9 



Topic by 646433   |  last reply

Looking for a radio transmitter and cheap receiver?

So, to simplify things, I want to power a heap of LEDs that run off exactly 5v of power when I press a button (and stop when I release) from 300+ meters. I'm looking for a radio transmitter that has around 300+ (bigger the better) range that can communicate with a large heap of receivers. I'd prefer if the receivers are fairly cheap because I'll be using them in large quantities, but I'm happy to spend under $100 with the transmitter. On use, I want the receivers to output 5v of power into the LEDs. The transmitter doesn't need to transmit anything special, just a signal at all will suffice, with an easy on/off switch on it. I'd be happy to lower my range to around 200 if necessary, but its not really ideal. The receivers need to be fairly small. Thanks a lot for any help/suggestions :). My electronics knowledge in this area is fairly limited. Thank you again

Question by HarryA3   |  last reply

How to make a video transmitter and receiver?

I need a small compact and light video transmitter and a powerful receiver that I can use for my Drone, but i don’t want to empty my wallet. Is it possible to build a simple one, that sends video and audio via(with)/without – internet, I wanna try both, but not very complicated? Thank You.

Question by RajibP1   |  last reply


Does any one know how to make a cheap 8 channel rc transmitter and reciver for a rc plane from scrath or house hold don't ask me to hack a rc car pls explain in detail and instuctable...thanks in advance

Question by mihir.sahu.355   |  last reply