Hello community, I’m trying to interface the HC-SR04 Ultrasonic Distance Sensor with the MaaxBoard OSM93 (based on i.MX93 Cortex-M33). I plan to connect: TRIG pin of HC-SR04 to one GPIO as output (to send the trigger pulse) ECHO pin to another GPIO or timer pin (to measure the pulse duration) However, I’m facing the following issues: I’m not sure which 40-pin header GPIOs support TPM (Timer Input Capture) functionality. Is there a TPM Input Capture SDK example for i.MX93 that works with MaaxBoard OSM93? Where can I get a proper pinmux table for the 40-pin header of MaaxBoard OSM93? Any guidance, pin mappings, or working code examples would be really appreciated! Thank you!

How to Interface HC-SR04 Ultrasonic Sensor with MaaxBoard OSM93 (i.MX93)?

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Forum How to Interface HC-SR04 Ultrasonic Sensor with MaaxBoard OSM93 (i.MX93)?

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Manju123 1 month ago

Hello community,

I’m trying to interface the HC-SR04 Ultrasonic Distance Sensor with the MaaxBoard OSM93 (based on i.MX93 Cortex-M33). I plan to connect:

However, I’m facing the following issues:

I’m not sure which 40-pin header GPIOs support TPM (Timer Input Capture) functionality.
Is there a TPM Input Capture SDK example for i.MX93 that works with MaaxBoard OSM93?
Where can I get a proper pinmux table for the 40-pin header of MaaxBoard OSM93?

Any guidance, pin mappings, or working code examples would be really appreciated!

Thank you!