Other Parts Discussed in Thread: HDC2080
Hi Support team.
I am having an issue with the HDC1080 Temp/Hum sensor. I have built 3 PCBS and have tried 2 different parts with the same result
with 3 different software for the Arduino.
I am able to retrieve all the device info and Temperatre as follows :
Measurement Resolution: T=0 (0=14 bit, 1=11 bit) RH=0 (00=14 bit, 01=11 bit, 10=8 bit)
T=28.40C, RH=0.00%
Manufacturer ID=0x5449
Device ID=0x1050
But on both devices I always get RH=0.00%. I have followed the guidelines as follows
Pin 1 = SDA, 4.7K pullup
Pin 2 = GND
Pin 3 = N/C (left floating)
Pin 4 = NC (left floating)
Pin 5 = 3.3V bypased to GND with a .1uF cap
Pin 6 = SCL, 4.7K pullup
Pin 7 (Exposed PAD) soldered to the board but left floating
The only other issues I think it might be is that I am using a SAMD21 (Arduino Bootloader) (Same layout as a Feather M0 Datalogger from Adafruit)
and its a 32 bit device, all references have been to the UNO for Arduino I have seen. I made sure to use no clean flux with my heat gun set below the 260C for ~3 seconds
to melt the solder.
Any insight would be appreciated.
Thanks
mike