Analysing Signals from SHT1X Software Module

RE: Analysing Signals from SHT1X Software Module

michaelwylie — Sat, 11 Apr 2015 18:47:58 GMT

Lucie;

I really enjoyed reading your post. Good work. How big is the pullup on the line, 10 kΩ? I completely understand the frustration of writing the software for these modules as I've written the bit banging routines as well. Sensirion does give example code for some modules, dd you start with those when working on your sensor? I see you are running your lines at about 10 Hz? I wonder what would happen if you sped up the communication? Personally, I wouldn't worry about the drop if it's within spec.

Mike

RE: Analysing Signals from SHT1X Software Module

DAB — Fri, 10 Apr 2015 19:14:06 GMT

Very good post Lucie.

You might want to use a pull up resistor on the signal that comes up a little low. It sounds like the device is pulling too much current causing the voltage drop.

As for rat's nest wiring, I have seen much worse.

Your desk is way cleaner than mine, and I too like Anime. [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0777a0d3-7ccf-4ca5-8f51-0b3da595549a/contentimage_5F00_1.png:16:16]

Keep up the good work, I look forward to your next post.

DAB

RE: Analysing Signals from SHT1X Software Module

jw0752 — Fri, 10 Apr 2015 15:16:17 GMT

Hi Lucie,

I enjoyed your presentation. Good job on figuring out a way to communicate with that sensor. It looks like you have a really nice shop too.

John

RE: Analysing Signals from SHT1X Software Module

clem57 — Fri, 10 Apr 2015 15:03:16 GMT

Good job getting into the reasons for the circuit signals on the scope. I learned a lot reading your blog. Thanks [mention:37679057c057401e80d436c0669d99b4:e9ed411860ed4f2ba0265705b8793d05] (Lucie)

Clem