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Questions tagged [remote]

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Send wireless signal from a wireless relay to turn a wireless lamp on

I have this wireless relay: The receiver is connected to a pump which is on the 1st floor of our house and can be controlled from the 3rd floor of our house. We have a neighbor (my sister) who can ...
user1764381's user avatar
1 vote
3 answers
146 views

Skills to build an airborne radar [closed]

I am currently working on a project to develop an airborne ground penetrating radar - a payload to be put on a drone - we are aiming to develop a synthetic aperture ground penetrating radar of this ...
Drill_zoo's user avatar
  • 111
2 votes
2 answers
291 views

NPN (2N2222) transistor as a switch replacement for a RF garage control

I'm looking to "replace" a physical keypress on a garage door remote control (RF) with a pulse (HIGH state) from a Wemos D1 mini 3.3V pin. The remote control is this one I measured the ...
vazquezjm's user avatar
2 votes
1 answer
463 views

Identify RF 433 MHz chip in remote to reproduce it

I've recently bought a ceiling fan (Suilon Cambil) and I wanted to automate it substituting the remote it comes with, with a DIY one connected to Alexa. Main problem is that I haven't been able to ...
david llevat's user avatar
0 votes
0 answers
46 views

About LoRa Remote Environmental Monitoring

I'm currently working on designing a wireless communication system for remote environmental monitoring, aiming to gather data from an open area approximately 1 kilometer away. The system needs to ...
FredMorgan's user avatar
0 votes
1 answer
58 views

Are there drawbacks to connecting a remote diode temperature sensor through a connector and cable interface?

I would like to connect an external temperature sensor (external to the PCB) to a the DP/DN pins of an EMC2103 fan controller. My plan would be to use a twisted pair cable with a generic TO-92 remote ...
mouelle's user avatar
  • 78
0 votes
0 answers
104 views

IR frequency counter

I want to deign a frequency counter in this way: A specific frequency (33 kHz) is radiated by an infrared transmitter from a distance of 10 m to the infrared receiver for 100 ms. After amplifying the ...
Hossein Ameri's user avatar
0 votes
3 answers
2k views

CC1101 changing frequency from 868 to 433MHz - ESP32

I bought a CC1101 module to make a remote for my gate. Unfortunately, the module is marked 868MHz, while the gate needs 433.42MHz. I thought it's changeable, so in code you just set the frequency and ...
matez's user avatar
  • 3
0 votes
0 answers
77 views

Looking for a remote switch triggered by brief power off then on

I'm looking for a "remote switch" that can be turned on by a brief interruption to the power supply. Scenario: I have 2 lights on 1 circuit. I cannot run wires back to the main switch but I ...
Peter Smart's user avatar
0 votes
1 answer
838 views

Car Key Fob doesn't transmit RF, althougth everything else seems to be working

Before starting to describe the problem, I need to say that this is my first time posting on electronics.stackexchange. I don't have a deep knowledge of electronics but I usually can diagnose a ...
asergio's user avatar
-2 votes
1 answer
83 views

DC motor remote control with one push [closed]

I am planning to use 2 actuators as a gate opener. The linear actuators are hooked to a DC motor controller, with remote, so I can open/close the gate by either press and hold one of the two buttons ...
A h's user avatar
  • 15
1 vote
1 answer
3k views

Is it possible to reduce range of an RF receiver or transmitter for LED Strip lights?

Background: I recently purchased a couple of strip led lights with remote. These were installed in different rooms. Problem: The remote seems to be RF and not IR, thus all the lights in various rooms ...
DevL's user avatar
  • 121
0 votes
1 answer
2k views

What is this component, used in remote car key PCB?

A friend's car key was not working properly, and he took it to an electronics repair shop. They quoted a very high price for the repair and my friend refused and got his key back. Now he brought me ...
mehmet's user avatar
  • 1,139
0 votes
1 answer
160 views

Missing component identification

I have a remote controller whose antenna is de-soldered and it seems there was a capacitor or a resistor (see red circle). Can anyone help me to understand what component could be the missing one? I ...
Leandro's user avatar
0 votes
1 answer
546 views

Has someone here ever made a DIY LiDar from scratch that can 3D scan? If yes, can you give an explanation regarding the process of doing so? [closed]

We've been tasked to create a LiDar system from scratch (we're not allowed to use modules like TFMini and vl53l0x, we have to make it from scratch) that can output 3D projections. So far we've been ...
TTbulaski's user avatar
  • 345
0 votes
1 answer
119 views

Changing "Latching Normally Closed" switch behaviour to "Momentary Normally Open"

I am trying to connect a normally closed gate sensor to a cheap 433 MHz remote so I can monitor the status of the gate at the front of our property remotely. The remote has a normally open button ...
Zac's user avatar
  • 1
-1 votes
1 answer
119 views

Fixing a TV remote with a low voltage button [closed]

I'm trying to fix my TV remote (Panasonic Viera) as one of the buttons has become unresponsive. I've cleaned it with alcohol and noticed the voltage across is just 0.3V rather than 2.7V across the ...
John M.'s user avatar
  • 893
0 votes
1 answer
2k views

Making a Remote Control for My TV from Scratch

This might seem silly to many of you, but I lost my TV remote when I moved awhile back and instead of buying a universal remote for cheap, I want to make a remote for my TV from scratch myself. I'm ...
Han's user avatar
  • 13
1 vote
2 answers
1k views

Remote controlling an ATX power supply

First of all i hope you will all excuse my spelling as i am Dyslexic. I have two computer cases one is fully outfitted and has a sas expander to run 16 hard drives in it with a breakout to a ...
Falloutboy's user avatar
0 votes
3 answers
140 views

How to decode an IR from device [closed]

I have the Mitsubishi DA-R45P receiver, but I don not have a remote for this device. And without remote this device can not work. I see that there are universal remotes with learn function, but for ...
mike9999's user avatar
0 votes
2 answers
146 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 ...
M-832's user avatar
  • 1
0 votes
1 answer
107 views

Ideas / Alternate solutions to trigger a switch

Thank you for reading my question, I hope to learn a new way to solve my problem. I don't expect anyone to design a cicuit etc as hopefully I can do that myself, just some pointers at possible ...
West's user avatar
  • 1
0 votes
1 answer
169 views

Easiest way to control a led remotely [closed]

I was wondering what is the easiest and cheapest way to have a high power led (3 Watt) turn on/off and blink remotely from a distance (60m-100m). I've been looking at some microcontroller solutions (...
B913's user avatar
  • 11
0 votes
2 answers
76 views

Why are so many RF remote boards relay-based?

I'm working on a device that illuminates a signal LED when a button on a remote is pressed. I have a working prototype based on a pre-fabricated board I bought on Amazon (see here), and it's nice! But ...
Max Batchelder's user avatar
0 votes
1 answer
61 views

Remote control's battery bay issue, no voltage at the end of circuit [closed]

I have a remote which needs 6 AA batteries, I put fresh AA batteries in and I tested via volt meter and at the last battery's negative connection is showing zero reading. The same battery's positive ...
david bob's user avatar
0 votes
2 answers
780 views

Remotely monitor condition of fuse

I am installing five 12V batteries in a motorhome. The batteries will be wired in parallel for a 12V system and will be contained across three different enclosures. Each positive cable link between ...
Sebastian's user avatar
1 vote
3 answers
2k views

Rigol Ultrascope remote via Internet

Has anyone had any success in using the Rigol Ultrascope software to control a scope remotely via Internet - ie not just on a local LAN? It works fine on the local LAN and apparently uses port 5555. I ...
David G's user avatar
  • 433
-1 votes
2 answers
438 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 ...
Lloyd Dominic's user avatar
0 votes
1 answer
60 views

Name of the "object" next to an LCD [duplicate]

I opened up a remote I had and saw there were two soft "objects" next to the display in it. What is it's name and function?
Divyesh Narayanan's user avatar
0 votes
1 answer
2k views

where to solder antenna on 433 MHz remote control

I would like to install this remote into a carbon component, which apparently shields all rf signals. So, I need to solder an external antenna to this remote control pcb, but I could not figure out ...
Wanek T's user avatar
  • 15
1 vote
1 answer
76 views

What is the name of the syntax standard Keithley is using for remote control over serial?

Keithey (and other manufacturers) have a standard syntax for communicating over serial. Typically, commands look like (source): ...
Sparkler's user avatar
  • 823
3 votes
2 answers
94 views

Unexpected bits when shifting out (ATtiny85)

I'm trying to spoof a 433 MHz remote and I have a sequence of 32 bytes that I want to repeatedly shift out to one of ATtiny85's pins. The signal then goes to a cheap Chinese-type 433 Mhz transmitter. ...
Protecto's user avatar
0 votes
1 answer
1k views

Can you get an infrared remote's signal modulation with an Arduino?

Let me preface that I am very much an electronics noob. I am decent with programming. I have an RCA L40FHD41 HDTV that I bought in 2010. I have tried using many universal remote with this TV, but ...
YoItsTrev's user avatar
0 votes
1 answer
3k views

Interfacing IR RC5 remote with STM32

I am interfacing IR remote which works on RC5 protocol with STM32F405VG. I have a PCB where I am using TSOP 1738 to receive RC5 packets. I have connected the CRO. ...
S Andrew's user avatar
  • 621
0 votes
2 answers
198 views

How do I read a Board?

I have opened a remote and tried to read it. Quite tricky if I'm honest. I'm trying to replicate this DIY. On instructabels (Raspberry-Pi-GPIO-home-automation). http://www.instructables.com/id/...
dk1990's user avatar
  • 101
0 votes
2 answers
297 views

Remote Playback Device [closed]

I am looking for a small device/system that I can pre record a one or two word message on and play it back with the push of a remote button. Ideally, the remote would have 3-5 buttons for different ...
M. Pfohl's user avatar
1 vote
2 answers
1k views

Auto shutdown and start of Raspberry Pi (remote application) using powerboot 1000c - need help debugging the circuit

In my application, the raspberry pi (A+) is remotely located and is powered using Powerboost 1000c. The powerboost is connected to a battery (lipo) and a solar panel. The battery is rechargeable and ...
redM0nk's user avatar
  • 13
0 votes
3 answers
505 views

Digitally Pressing a keyfob button with a microcontroller

For a project I'm working on, I need to press a car keyfob button with a microcontroller. So I soldered two wires to the circuit thing on the keyfob so I can send signals to it. This is what it ...
Phillip Davis's user avatar
1 vote
7 answers
29k 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 ...
David Scott's user avatar
1 vote
1 answer
76 views

Remote switching in rural village

How might we control a 2" valve >2000ft away in a remote village. We're thinking that we power the system with a 12 v or 24 v solar powered/ battery backup. The spot in the village with line of ...
John Donahue's user avatar
0 votes
1 answer
120 views

Emulating the start/stop button on the remote control of the iPhone

I need to build an (apparently) extremely simple device which is basically a pushbutton that pauses and restarts the playback on an iPhone. This is exactly what the central button does, on the remote ...
GattoGrigio's user avatar
-3 votes
1 answer
312 views

Electronic window tinting, darkening

Does anyone know a DIY project to make window glass dark/tinted electronically? (some kind of DIY foil). The goal is to turn it dark/clear with a remote. You may call it smart window :) eg: http://...
Vincent Alex's user avatar
0 votes
1 answer
281 views

Can I use serial communication for audio amplifier remote turn on?

I have a cheap Chinese tablet/GPS/dash-cam in my car. The problem is that I can't hear driving instructions on GPS as the volume is too low. I don't want any external wires for additional speakers and ...
jan mägi's user avatar
1 vote
0 answers
497 views

How to measure RF receiver

I am trying to check how electric devices such as Sunroof could affect the remote key performance range (meter) for cars. I am thinking of measuring relative antenna gain of RF receiver of one test ...
user46531's user avatar
0 votes
2 answers
270 views

I am messing around with some power supplies. There are pinouts labelled "reserved" and "remote"- what are they?

I have worked out that that the Remote pin works like the Green "Power Supply On (active low)" wire on an ATX supply, and found a wiki on remote sensing about it being used to get diagnostics on the ...
Oliver Kellow's user avatar
0 votes
2 answers
2k views

How to amplify DC Voltage to be used like supply to 2km?

I want to turn on a device away from the voltage source to 2 kilometers. My device operates at 24VDC or 48VDC / 35W. I need to know how is it possible to amplify the voltage from 24Vdc to 240Vdc or ...
joseluisbz's user avatar
2 votes
2 answers
2k views

delayed auto off circuit after receiving power (ceiling fan)

I came across this website while doing a bit of research. I've used the stack overflow (programming) version of this site before but this is my first time on the electronics version. I'm looking at ...
ASTRO53's user avatar
  • 21
1 vote
3 answers
2k views

NPN transistor to short RF remote switch button

simulate this circuit – Schematic created using CircuitLab Hi, I am trying to replace RF remote switches with transistors and want to control them using raspberry pi GPIO pins. Here as you ...
venu's user avatar
  • 11
1 vote
2 answers
69 views

Remote Temperature Readout

My house is on a giant hill. The city only provides enough water pressure to get me water half way up the hill. A long time ago a pump was installed in a small dugout on the side of the hill (about ...
Jake's user avatar
  • 113
2 votes
1 answer
364 views

looking to capture an infared code

I am trying to get an infared signal being sent from an emitter (think along the lines of a remote control). I know I can use a fotoransistor on a breadboard to capture/detect the signal, but I have ...
Sean Nall's user avatar
  • 165