I have a generic apds-9660 sensor which is working perfectly with an Argon but refuses to work with a Photon. I’ve tried adding 4.7K pullup resistors which aren’t required on the Argon. Double checked cabling and even switched SDA and SCL for poops and giggles. Both the Spark and Adafruit libraries error at init and begin respectively. I’ve tried firmware 1.5 and 1.44 on the Photon.
I’m unsure what to try next? I’ve seen there’s a history of issues with i2c on the Photon but they appear to have been resolved with 0.44.
Thanks for any pointers!