DSD TECH SH-UR01A USB Relay Controller for Computer and laptop(1CH)

This worked fine for the project that I was working on. However the unit only comes with a very basic control software which is basically a 9600 dumb terminal into which you have to enter +AT commands to control the relay. I wrote my own front end which for me worked great. I now have an ON/OFF button that I can press.

Ok this is not a relay simply "on" when USB power is applied. The relay is controlled "ON/OFF" using serial commands, as many have already stated. I had no driver issue, as windows already had the driver - probably due to me installing many multiple devices in the past. I however wanted a simply Windows command line to turn the relay on or off. After lots of searching I made a batch file to simply turn on (or off) the relay. For those of you not wanting to use terminal programs, here is how I'm doing it through windows command line: (for the below ,the COM port my relay is installed to is COM8)1st set the com port speed/info >mode COM8 BAUD=9600 PARITY=n DATA=82nd send the command >set /p x="AT+CH1=1" <nul >\\.\COM8to turn it off, send the same command in line 2, but with AT+CH1=0 (not AT+CH1=1).I dont think you need to set the mode every time, but I put the 2 lines in a batch file just in case. So far its working exactly as I need it to. I made 2 batch files (1 for on, and 1 for off). Hope this helps someone.

Everything does what is advertised.The only thing that could be improved is a download link to a PDF version of the "manual" sheet. It is easier storing these on disk instead of in a paper archive.

Ho comprato questo prodotto perchè avevo bisogno di un relè comandato da USB per poter accendere un paio di casse collegate al televisore senza aver bisogno di girare manualmente la manopola dell'amplificatore. Questo prodotto in realtà non nasce per questo scopo o analoghi. In breve, si tratta di un dispositivo che una volta configurato (scaricando il driver prima su PC assieme a un programma di connessione via protocollo seriale 232) può essere comandato inviandogli delle stringhe:- AT -> restituisce OK- AT+CH1=1 -> chiude il relè- AT+CH1=0 -> apre il relè(inutile utilizzare Putty allo scopo, esiste però un programma grauito scaricabile dal sito del costruttore)Scritto al costruttore per maggiorni informazioni: il prodotto è configurato in modalità NA all'accensione e giocherellare coi i comandi sperando di cambiare questa impostazione è una perdita di tempo. A loro dire occorre modificare il firmware.Per ottenere ciò che mi serviva, ho ponticellato i +5Vcc dell'USB con il PIN 2 del relè, come mostrato in figura. Ora quando la porta USB del televisione è alimentata, il relè chiude consentendo di avviare anche l'amplificatore. Bastano un saldatore da stagno con punta sottile e un cavetto.

■手動起動①SH-UR01Aで検索してドライバを入手、導入。②TERATERMで当該シリアルポートに接続。③メニュー「コントロール(O)」の「ブロードキャストコマンド(B)」を開く。④「Enterキー」チェック外す。「リアルタイム」チェック外す。⑤フォーム下部のポート一覧から接続したCOMポートを行選択。⑥フォーム上部のテキストボックスに「AT+CH1=1」を入力し「送信」を押下。⑦フォーム上部のテキストボックスに「AT+CH1=0」を入力し「送信」を押下。■自動実行ttpmacroでマクロファイルを作成実行。--あとは耐久性ですか・・・。

The device looks fine, it probably would work if the driver were included (it was not.) The packaging directs the user to download the driver from a website. The website (both the link and the main page of the website) no longer exist on the Internet. My attempts to find a duplicate of the driver elsewhere were unsuccessful.