page 34 and 35 in datasheet https://www.mouser.com/datasheet/2/783/BST-BME280-DS002-1509607.pdf
1. How many byte MCU send to read sensor data
2. How many byte MCU receive from sensor
![1583080735375.png]()
Its looks like MCU sends two bytes to read one byte data. MCU sends two bytes ( register address and data register) and received two bytes ( register address and data register)
1. How many byte MCU send to read sensor data
2. How many byte MCU receive from sensor
Its looks like MCU sends two bytes to read one byte data. MCU sends two bytes ( register address and data register) and received two bytes ( register address and data register)
