2PCS Waveshare Industrial USB to RS485 Converter with Original FT232RL and SP485EEN Embedded Protection Circuits for Industrial Control Equipments and/or Applications

Works fine for RS485. I suppose I should have paid closer attention to the description. Doesn't work with RS232 connections. I don't know why I would expect that anyway, they're two totally different things. The description doesn't say it works with 232, just that they have some chip in it with that number. But hey, for RS485, it works great. I think you need a different device if you want to do multi-drop connections (something to verify if you do need it). Point to point, this works fine.

Waveshare USB to RS485 Converter (2-Pack): Industrial-grade adapters featuring FT232RL and SP485EEN chips with embedded protection circuits. Reliable for industrial control systems, automation, and serial communication tasks. Plug-and-play via USB.

This is a product designed for technical users who know what they are doing, and the actual item worked perfectly. I used this to interface a Raspberry Pi to a JKBMS battery management system. When I first connected it, I was running into issues with the USB device continuously disconnecting then reconnecting. Since it came as a set of two, I tried the other unit. Same problem. After a little debugging I found a suggestion that this problem was common with bad USB cables. I was using the USB extender provided with the unit, and this is hardly a high bandwidth application, so I doubted that was a problem, but tried plugging it in directly (a stretch distance wise, but worked) and immediately the problems went away. One star off for the hour I spent trying to debug the problem. Excellent units, but cheap cables you might not want to use.

Great for using with the Samsung Hvac SNet program. Btw Snet program blows compared to other brands service tools. But cheap and quick for looking at data on F1/F2 terminals. Boots fast and easy to use. The price is over accommodating for the headache this saves on!

They sent two that did not have waveshare logo.. they don’t work.. I tried and tried but they don’t work.. I didn’t notice they should have waveshare on them until I gave up and started questioning if ive been had.. it does not work and does not come with instructions. So disappointed…

Worked as expected!

Worked without a hitch. Windows recognizes it as a COM port. Connected it to my embedded 485 port. Been using with putty as a serial device with the COM port (appears in Device Manager). Many hours of use without issue. If you do embedded work pick up a handful of these.

Great product is use them for communicating with Samsung hvac

I tested this between 2 computers. I cranked up the baud rates on both sides to the max (921600). I had each computer running a terminal session on the respective serial port. Communication back and forth worked fine. I only used short test leads between the 2 converters so I didn't test the range. To get the rated 1.2 km (if even possible) you would need some pretty good quality twisted pair shielded cabling I think. This isn't quite a true test of the RS485 capability since for all I know it could have been using some other protocol since I was going between the 2 converters and nothing else in the middle. However, one would presume that in fact it was RS485 protocol that was being used. This is a great way to extend RS485 connectivity to devices - not just for computers but things like Raspberry Pi and other microcontrollers with USB ports should be able to make use of this. I didn't need to install a driver, my computer used a driver published by FTDI (Future Technologies Devices International). I don't know if it auto-loaded the driver or was just something that Windows had there by default, or perhaps had previously loaded from some other device I had previously used. Neither computer had an issue though so I suspect it may be a preloaded driver that comes with Windows. I didn't test it with my Pi but I am hoping it works with that too. This seems like a good price for 2 of these, but I haven't comparison shopped so not sure what these typically go for. Of note, this only supports 2 wire implementation, if you want to connect to a 4 wire RS485 device you will have to bridge, if that device doesn't support bridging (4 wire to 2 wire) you will be out of luck. However, the vast majority of RS-485 devices I have come across are fine with 2 wire mode and many only support that (very few applications use full duplex, half duplex is the norm).

FUNZIONA PERFETTAMENTE

Struggled to get working but later found it was the setting chatgpt kept giving me for my invertor communication

Funktioniert

Le lot comprend deux interfaces USB A vers RS485, deux rallonges USB A d'un mètre, et deux petits tournevis pour connecter solidement des fils aux borniers. La qualité de fabrication est bonne, les connecteurs ne présentent pas de jeu, et les borniers sont amovibles (ce qui n'est pas précisé dans la présentation). Plusieurs sécurités électriques intégrées sur les cartes électroniques protégeront l'ensemble du système en cas de problème. Les interfaces sont reconnues immédiatement par les différents OS comme des convertisseurs FT232R, il faudra éventuellement installer des pilotes VCP et D2XX qu'il conviendra d'aller télécharger sur le site du fabricant. Pour cela, on cherchera 'driver FTDI FT232R' dans son moteur de recherche préféré. Une fois cette étape passée, on pourra connecter un câble XLR au bornier de la façon suivante : 1 sur GND, 2 sur B-, et 3 sur A+. Ensuite, on lance son logiciel de contrôle, genre Freestyler ou QLC+, on configure son interface DMX compatible avec l'Entecc OpenDMX, et on pilote ses éclairages. Ce n'est pas plus compliqué que ça ! Au final, je suis très satisfait de ces convertisseurs USB vers RS485. Ils sont bien fabriqués, pourront piloter de nombreux périphériques utilisant une liaison série (dont le DMX), ils sont sécurisés, et ils sont livrés avec des accessoires utiles. Reste qu'une notice aurait pu être utile pour les néophytes complets, mais ils s'aventurent rarement dans ces contrées inexplorées qu'on appelle le "DIY". Ils n'auront cependant rien à craindre : avec ces convertisseurs, tout est plutôt simple. ;-)