{"id":20770,"date":"2024-06-03T13:46:50","date_gmt":"2024-06-03T20:46:50","guid":{"rendered":"https:\/\/www.vernier.com\/til\/?p=20770"},"modified":"2024-08-05T08:47:03","modified_gmt":"2024-08-05T15:47:03","slug":"why-does-my-go-direct-sensor-data-look-shaded-when-using-the-ti-nspire-dataquest-app","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/20770","title":{"rendered":"Why do my DataQuest App graphs look shaded when using Go Direct sensors via Bluetooth?"},"content":{"rendered":"
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A bug in the TI Bluetooth Adapter<\/a> \"\" firmware (v1.1.0) causes periodic near-zero sensor readings that, when plotted, give the appearance that the graph is shaded.<\/p>\n

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Data for sensors having multiple sensor channels (e.g., Go Direct Force and Acceleration<\/a> and Go Direct Light and Color<\/a>) can show this issue when other-than-default 1<\/a><\/sup> sensor channels are used.<\/p>\n<\/div>\n

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You will not see this issue when using only the default sensor channel, nor when using Go Direct sensors with only a single sensor channel (e.g., Go Direct Temperature<\/a> and Go Direct Gas Pressure<\/a>).<\/p>\n

This is not an issue when Go Direct sensors are connected via USB.<\/strong><\/p>\n

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Resolving the Issue<\/h3>\n

Once you see a sensor exhibiting this behavior, it will be necessary to reset the sensor by pressing and holding the power button until the sensor turns off.<\/p>\n

To prevent the issue from reoccurring, update the firmware on the TI Bluetooth Adapter to v1.1.1.75<\/a> or newer. Files necessary for updating the TI Bluetooth Adapter can be found on the Texas Instruments web site<\/a>.<\/p>\n

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Additional Information<\/h3>\n