{"action":"created","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/10264","repository_url":"https://api.github.com/repos/PX4/Firmware","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/10264/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/10264/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/10264/events","html_url":"https://github.com/PX4/Firmware/issues/10264","id":351905231,"node_id":"MDU6SXNzdWUzNTE5MDUyMzE=","number":10264,"title":"Tfmini rangefinder detection have huge delay when use  the telem1 is enable as a radio link ","user":{"login":"eleboss","id":19730939,"node_id":"MDQ6VXNlcjE5NzMwOTM5","avatar_url":"https://avatars2.githubusercontent.com/u/19730939?v=4","gravatar_id":"","url":"https://api.github.com/users/eleboss","html_url":"https://github.com/eleboss","followers_url":"https://api.github.com/users/eleboss/followers","following_url":"https://api.github.com/users/eleboss/following{/other_user}","gists_url":"https://api.github.com/users/eleboss/gists{/gist_id}","starred_url":"https://api.github.com/users/eleboss/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eleboss/subscriptions","organizations_url":"https://api.github.com/users/eleboss/orgs","repos_url":"https://api.github.com/users/eleboss/repos","events_url":"https://api.github.com/users/eleboss/events{/privacy}","received_events_url":"https://api.github.com/users/eleboss/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-08-19T14:00:51Z","updated_at":"2018-08-19T15:33:46Z","closed_at":null,"author_association":"NONE","body":"**Describe the bug**\r\n**Tfmini rangefinder detection have huge delay when use  the telem1 is enable as a radio link .**\r\n\r\nWhen using the Tfmini rangefinder at telem2 with default setting and using radio link in telem1 at the same time, the rangefinder will not work well, and the range detection will drop to from a very high rate to about 2s per detection. This can be directly view from QGC Analyze.\r\n\r\n**To Reproduce**\r\nSteps to reproduce the behavior:\r\n1. Start the pixhawk4\r\n2.plug the radio link in telem1 and tfmini in telem2\r\n3. enable tfmini in param setting\r\n4. use the radio link and QGC analyze can see a huge delay of range detection.\r\n5.unplug the radio link the detection rate will back to normal.\r\n\r\n**Expected behavior**\r\nThe tfmini should work in about 100hz rate.\r\n\r\n**Log Files and Screenshots**\r\n\r\n\r\n**Drone (please complete the following information):**\r\n- Pixhawk4 with 1.8.0 PX4 FIRMWARE.\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/PX4/Firmware/issues/comments/414135552","html_url":"https://github.com/PX4/Firmware/issues/10264#issuecomment-414135552","issue_url":"https://api.github.com/repos/PX4/Firmware/issues/10264","id":414135552,"node_id":"MDEyOklzc3VlQ29tbWVudDQxNDEzNTU1Mg==","user":{"login":"eleboss","id":19730939,"node_id":"MDQ6VXNlcjE5NzMwOTM5","avatar_url":"https://avatars2.githubusercontent.com/u/19730939?v=4","gravatar_id":"","url":"https://api.github.com/users/eleboss","html_url":"https://github.com/eleboss","followers_url":"https://api.github.com/users/eleboss/followers","following_url":"https://api.github.com/users/eleboss/following{/other_user}","gists_url":"https://api.github.com/users/eleboss/gists{/gist_id}","starred_url":"https://api.github.com/users/eleboss/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eleboss/subscriptions","organizations_url":"https://api.github.com/users/eleboss/orgs","repos_url":"https://api.github.com/users/eleboss/repos","events_url":"https://api.github.com/users/eleboss/events{/privacy}","received_events_url":"https://api.github.com/users/eleboss/received_events","type":"User","site_admin":false},"created_at":"2018-08-19T15:33:46Z","updated_at":"2018-08-19T15:33:46Z","author_association":"NONE","body":"Also the update of data(unplug the radio link), does not look like100hz(many frame have same range when move the drone up and down very quick), compared with the data visualize from directly connect the tfmini to my windows computer and read data from the official software provide by benewake.\r\n\r\nI can post picture is needed."}}
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