Need help with extended range temp/humidity sensor

GeorgieC

Member
Yes, that's the trouble, it won't power up even with the old chip replaced. That middle light never starts blinking.
 

GeorgieC

Member
That's bad. Where did you get the chip from?
My:Ro Control. And he will give me a refund if I mail it back but I'm still out 2 boards. I'm just wondering how the chip could have done this and if there's a way to reset these boards somehow.
 

GeorgieC

Member
Yeah, I just don't get it. Granted, I haven't worked on these type of boards before, but I've never had something like this happen replacing an eprom. I don't know what to make of it.

I think at this point my best bet is to replace my board with another off ebay. I'm not ready to scrap my system yet!
 

dwalt

Active Member
Don't worry about the 4.0 chip. Just make sure the new board has a chip higher than 2.8.
2.16 was around for a while and the 3. series was as well.
 

GeorgieC

Member
Well, I found an HAI board in great condition and I've got everything working again. It works with the latest PC Access and I can connect via the usb/serial adapter with no problem. So that was an interesting experience, I'm just glad to have everything working again.
 
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