SparkFun Forums 

Where electronics enthusiasts find answers.

If the product you are working with is retired, post here. Keep in mind that SFE Technical Support Moderators can provide limited support in this category & retired products.
Hi everyone,

i have a HTU21D-F humidity and temperature sensor. I want to take data from this sensor on I2C and transformed to UART with SC16IS750 breakout board. And i want to see this signal on oscilloscope.I've tried this before, and i saw just a straight line on the oscilloscope.By the way i didn't use any microcontroller. I used power supply. Anyboy try this before?
Thanks for posting your question in the forums!

Unfortunately you can't just connect these two devices together and get a serial output. You'd need a microcontroller connected to both to pull data from the HTU12D and then send that data to the SC16IS750 to convert it to serial. Since most small microcontrollers have a UART built into them, it would probably be easier to skip the SC16IS750 altogether and just use the UART on the microcontroller instead.