kwmobile 433 MHz Transmitter and Receiver Module Kit for Remote Control Raspberry Pi Arduino Pack of 3

These work great if You know how to use them, it just takes the proper protocol, usually a couple of 0xFF preamble bytes and then the data. 50 or 60 feet of range should be easily attained, with the proper antennas.

I was able to get these working on Arduino Nanos. It'd be nice if they came with antennas.

There are few imitators for this product which I noticed some don't have the extra coil needed to work properly. These are the best 433 megahertz transmitter and receiver pairs available.

One of the three receivers I got were dead. I only bought these to get the receivers, so I dunno if the transmitters work, but a 33% DOA ratio isn't good.Range is not amazing, but better than some of the other options with the integrated "few loops of copper" antenna.

These do not work. I have spent quite a bit of time fiddling with them and they are doa.

Good product will order more down 🛣️..

I'm not happy that I wasted my time with these after seeing good reviews from others. I just needed the receivers, so can only speak for them. Basically they technically work, but I can't get more than about 1-2 feet of range. I tried various antennas and all three receivers. They all performed identically regardless of the antenna. I even tried different transmitters, ensuring they were 433mhz. I'm writing this review to save others time. I just started the return and will be sending back for refund. Look elsewhere if you need 433mhz receivers for your Arduino or other project!

Das kwmobile 3X 433 MHz Sender Empfänger Funk Modul ist ein tolles Produkt, um kabellose Funkschaltungen für Arduino und Raspberry Pi zu erstellen. Die Module funktionieren einwandfrei und sind einfach zu installieren, sodass ich damit schnell meine Projekte umsetzen konnte.Für DIY-Fans, die Funkschaltungen bauen möchten, ist dieses Set wirklich perfekt geeignet. Allerdings sollte man beachten, dass 433 MHz eine häufig verwendete Frequenz ist, die auch von anderen Geräten wie Funkklingeln genutzt wird. Dies kann dazu führen, dass Signale eventuell von anderen Geräten empfangen und fehlinterpretiert werden. In meinem Fall wurde z. B. eine Funkklingel ungewollt aktiviert.Insgesamt ein sehr nützliches Produkt, wenn man sich der möglichen Interferenzen bewusst ist!

kwmobile goods tend to be good quality and these work fine.Sending data via RF (radio frequency) tends to be noisy and hit & miss and frowned on by the techo snobs whose alternatives like 2.4ghz also has range problems.These are ideal for beginners and there are loads of tutorials out there and you will need to 'include' the Radio Head library -all for free.DO NOTE if you are setting up they need to be very close ( I mean inches) to each other. Once you are happy they talk to each other a must is to attach and aerial. This is simply a 17cm ( near 6 inch) wire to both the transmitter and receiver. No need for a thick wire and insulation on the wire makes no difference. The Transmitter has a hole in the bottom corner easy to solder to and the Receiver has a soldered joint in the corner edge near the coil - a bit trickier to solder. Once done you are laughing.I put the wires inside a straw to stop them flopping down.Using mine to monitor a rain sensor in the garden (you need an Arduino at both ends by the way as there are no 'remote sensors') and for distance of about 25 feet and thru' two solid walls it works. Watch too that you external sensor if running off a power bank can got to sleep and needs rebooting and I've yet solve that.

Buen producto y funciona sin ningún problema

after soldering on a antenna wire of about 20cm's , very clear signal, very little noise. would recommend.

I tried all 3 receivers with the same wiring setup and got a different result each time- First receiver got alot of noise (i live in the country side so there shouldn't be that much). Im guessing it was picking up from the wrong wavelengths or something. The things i was trying to pickup did not show.- Second receiver got no data all- Third receiver got barely any data, and the data it did get did not correspond to what i was trying to sendThe transmitters seem to work ok though, so i guess thats 50% of the product atleast..