How to use SHT1x sensor?

[sosse]

I just figured it out it is not I2C protocol. I need to write all the command by Bit-Bang mode. How can I send/receive data with manual bit command to SHT1x sensor? Can anybody share any library for SHT1x sensor or Bit-Bang mode?? I am using nrf51822 with SDK11 (S130). THank you!

[John]

Hi,

I've had to bit-bang an SHT75 and SHT1x interface on several processors including the nRF5x chips. Unfortunately that code belongs to my employer and I cannot share it. That said, it is a simple matter of controlling a couple of GPIO pins to do the work. The folks at Sensirion do provide example code for you though. Take a look here:

SHT example code

Good luck!

John

[sosse]

I just figured out what was wrong. Here is my code for reading SHT1x sensor value with nrf51822.

https://github.com/kimyd/SHT1X_on_nrf51822

[RobYouYou]

Hi Sosse - any hints as to what was going wrong with your nrf51822?  I'm trying your code on an nrf52832 and not having any luck - I don't see any ack after I enter the command (i.e. data line never goes low).  Any tips would be greatly appreciated.