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Would recommend100% J'accepte
Good value100% J'accepte
Good quality100% J'accepte
2 avis
This is the the best RS-232 relay module on eBay
I have purchased a lot of RS-232 relay modules on E-bay (I actually think I have them all ;-) this is the best unit in all ways!
The module good build quality.
The protocol is easy:
Send 255,1,1 to control Relay 1. Send 255,3,1 to control Relay 3 and 255,0,1 to control all of them)
On last thing - I ordered on Monday and received the modules on Wednesday - very fast!
This is just perfect!!!Lire l'avis complet...
Achat vérifié : Oui | État : neuf | Vendu par : sigma-shop
Good product...tech support, not so much
Had a problem making this work with DOS. All drivers supplied on the website assume Windows or Lynix. Emailed and was told a crossover cable was needed. This information turned out to be untrue. What did work was using a straight through serial cable, and shorting the data lines which clear the computer to send data. Accomplished this with a serial "Y" adapter and a 9 pin plug, with the appropriate data lines shorted. This went to one port on the "Y" adapter, with the other port open to go to the box. I think the manufacturer would be well served to include something on their website indicating how to wire it for DOS, other that just listing the command strings needed.Lire l'avis complet...
Achat vérifié : Oui | État : neuf | Vendu par : kmtronic2010