https://community.nxp.com/t5/Sensors/MMA8453Q-accelerometer-with-I2C/m-p/1805371#M7923 <P>hello</P><P><SPAN>Following testing of an MMA8453Q accelerometer with I2C, it's been noted that all registers consistently yield either 0xFF or 0x00. However, the expected value of register CTRL_REG1 is 0x19. Could someone provide insight into why this discrepancy is occurring and suggest potential solutions?</SPAN></P> Tue, 03 Feb 2026 21:37:16 GMT mezri 2026-02-03T21:37:16Z https://community.nxp.com/t5/Sensors/MMA8453Q-accelerometer-with-I2C/m-p/1805371#M7923 <P>hello</P><P><SPAN>Following testing of an MMA8453Q accelerometer with I2C, it's been noted that all registers consistently yield either 0xFF or 0x00. However, the expected value of register CTRL_REG1 is 0x19. Could someone provide insight into why this discrepancy is occurring and suggest potential solutions?</SPAN></P> Tue, 03 Feb 2026 21:37:16 GMT https://community.nxp.com/t5/Sensors/MMA8453Q-accelerometer-with-I2C/m-p/1805371#M7923 mezri 2026-02-03T21:37:16Z https://community.nxp.com/t5/Sensors/MMA8453Q-accelerometer-with-I2C/m-p/1805492#M7926 <P>Hello,</P><P>Please check this post:&nbsp;<A href="https://community.nxp.com/t5/LPC-Microcontrollers/I2C-not-working-between-LPC824-and-MMA8453Q/m-p/926905" target="_blank">https://community.nxp.com/t5/LPC-Microcontrollers/I2C-not-working-between-LPC824-and-MMA8453Q/m-p/926905</A></P> Mon, 12 Feb 2024 21:04:59 GMT https://community.nxp.com/t5/Sensors/MMA8453Q-accelerometer-with-I2C/m-p/1805492#M7926 ErikaC 2024-02-12T21:04:59Z