Avoidance experiments with the new POC and Benewake TFmini-S

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61

ok because you have not enabled the proximity function, rangefinders are not the same as proximity, you have to set the proximity to use rangefinders by setting PRX1_TYPE = 4 RangeFinder.

https://ardupilot.org/copter/docs/common-rangefinder-setup.html

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i have enabled it and getting error prx1: no data found

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are you getting data on rangefinder1.

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yeah but only on rngfnd1_orient set to down if it is set to another then not

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are you talking about sonar value or rangefinder1 value?

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if the rngfnd1_orient set to down then i got sonar value and rangefinder1 value if i set rngfnd1_orient to forward, left,right,up then i don’t get any value on same sensor

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do you have any other rangefinders configured or connected to it?

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i have two tfluna but testing it only one

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can you share your parameters?

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Screenshot 2025-04-02 183808
Screenshot 2025-04-02 1838081302Γ—783 276 KB

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does it work with prx type set to 0?

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i need to check for this

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after setting prx type to 0 it is behaving same as before , please tell me that why it is not working on rngfnd_orient1 if set to forward, left, right and up

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same as before ? so does it show a value on rangefinder1 if prx1 set to 0?

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hey, issue is resolved after setting forward, back, left, right to the parameters it doesn’t shows te value to the sonar range but shows value to the rangefinder1 and proximity ui.

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Hey, I have connected three tfluna with the help of i2c splitter and it is connected to i2c port of holybro 6c mini. So, issue i am getting that hdop is 100 and satellite is 0 which means no fix. and after disconnecting the sensors gps get back to 3d fix with 30 satellites and 0.5 hdop.

why it is happening is it due to emi from sensors or what?

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Did you change the I2C address for each LIDAR?

Is your GPS hooked up via serial or I2C?

If serial, your lack of fix is likely unrelated to your LIDAR.

If they’re all on I2C they’ll need to have unique addresses (or two i2C channels entirely)

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issue was resolved some times back , these tf luna sensors generate high emi due to which interference in satellites got affected, i have shielded the gps from its bottom side using copper tape / aluminium tape .