Hello, I have an aht20 sensor from adafruit and an rtc ds3221, the 2 sensors are i2c, except that I am taking this course academy.nordicsemi.com/.../, but the course in question they used a shield for i2c communication, already for me I don't think it was the best example, can you help me? Thanks.
Hi, I relied on the datasheet of the soc nrf5340, what I can see is that the pins from 0 to 31 of port 0 and 1 can be configured for by the psel register in order to select the sda and the scl? I came across this code on github https://github.com/crfosse/ncs_projects/tree/main/peripheral_zephyr/i2c where it scanned the i2c devices, I configured pins 2 for the sda and 1 for the scl as you can see in my overlay, but I can't see the devices, I I'm new, maybe I'm having trouble, I hope I can find a solution, you have the screenshots with the result in terminal.
datasheet
i2c devices scan code
overlay DT
Terminal
Sorry, Finally I was wrong, I can't found my aht20 i2c device, my nrf i2c@9000 controller seen a 0x38 address with and without any device cause of this overlay propertie(reg = < 0x38 >;), so this not work for me. I've anable internal Pull-upps resistors still not working, i've disable internall pull-upps and use external 10kohm resistors for the both line still not working. I can corfim that this adafruit aht20 sensor work smoothly with my arduino mkr1000 device. I hope you'll help please :)
Arduino Board
Sorry, Finally I was wrong, I can't found my aht20 i2c device, my nrf i2c@9000 controller seen a 0x38 address with and without any device cause of this overlay propertie(reg = < 0x38 >;), so this not work for me. I've anable internal Pull-upps resistors still not working, i've disable internall pull-upps and use external 10kohm resistors for the both line still not working. I can corfim that this adafruit aht20 sensor work smoothly with my arduino mkr1000 device. I hope you'll help please :)
Arduino Board
