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.

It works well once you find some software which can drive it easily. Refuses to work with my terminal software but found a web based script which works a treat. Using it to reset a remote reset an arduino.

Bought this to replace a different USB relay that quit working after a month. PLUSES: +Plastic housing. No worries about shorting out the bottom of the PC board. So often you get a circuit board with NO mounting holes or other way to support it. +Wonder of wonders, IT SHIPS WITH A USER GUIDE! ON PAPER! What a concept! Minor gripes: -The housing on this is a little bigger than it needs to be. -The user guide makes no mention of the timing constraint for inputting control strings. Likely a lot of the reviews saying it doesn't work were a result of that. If I hadn't seen the reviews taking about the timing, I'd would have probably returned this. -It's a little weird for this to very loosely be emulating the old smart modem AT command set, but then trading away carriage return to terminate commands and using timing instead. The gripes are pretty minor vs the pluses. I hope this one lasts.

Soms leer je alle dagen bij. Ik wist niet dat dit bestond, maar met die USB-relais word je PCV veel krachtiger. Zijn in verschillende uitvoeringen verkrijgbaar.

■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・・・。

Funktioniert absolut zuverlässig und macht genau das was es soll! Die Programmierung ist super easy, ich nutze das Relais innerhalb eines Autohotkey-Skripts.

Un bon produit qui marche très bien. J’ai écrit 3 programmes en RAD Studio : Delphi et C++ Builder, et un en Dev-C++. Ils peuvent être à la base de programmes plus étoffés. Si vous êtes intéressés vous pouvez laisser un message et je me ferai une joie de vous les partager. Je précise que ces programmes sont dans le domaine public, donc totalement gratuits.