Added filtering of ascent speed: In the previous version the ascent speed was simply calculated based of the last measured pressure values. This may lead to unexpected colorchanges of the depth value. To smooth this behavior a filter has been added which evaluates if a movment direction is valid for a certain period of time. If the condition direction is stable then the ascend speed is provided.

checksum_final_add_fletcher.exe OSTC4_firmware_upload.bin OSTC4_FONT_upload.bin OSTC4_RTE_upload.bin