{"product_id":"3446-feetech-ultra-high-torque-high-voltage-digital-giant-servo-ft5335m-fb-with-position-feedback","title":"FEETECH Ultra-High-Torque, High-Voltage Digital Giant Servo FT5335M-FB with Position Feedback","description":"\u003cp\u003eThis version of the 1\/4-scale \u003ca href=\"https:\/\/www.pololu.com\/product\/3429\"\u003eFT5335M ultra-high-torque, high-voltage digital giant servo\u003c\/a\u003e from FEETECH is specially modified to provide access to the feedback potentiometer through a fourth (green) wire, allowing you to directly measure the position of the output.  This extra information enables more complex robotics applications, such as determining when the servo has reached its target, detecting when the output is blocked, or implementing your own higher-level closed-loop position control.\u003c\/p\u003e\n\u003cp\u003eKey specs at 7.4 V: 0.18 sec\/60°, 550 oz-in (40 kg-cm), 180 g.\u003c\/p\u003e\n\u003cbr\u003e\u003ctable class=\"picture_with_caption right\"\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7689.1200.jpg?0bbcc86bcdd52d7c4ae50d311480baaa\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id ultra-high-torque high-voltage digital giant servo ft5335m compared to a standard-size servo. data-picture-id=\"0J7689\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7689.300.jpg?0bbcc86bcdd52d7c4ae50d311480baaa\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe FT5335M-FB is a specially modified version of FEETECH’s \u003ca href=\"https:\/\/www.pololu.com\/product\/3429\"\u003eFT5335M ultra-high-torque, high-voltage digital giant servo\u003c\/a\u003e that provides access to the feedback potentiometer through a fourth (green) wire, which makes it possible to directly measure the output angle.  With this extra information, you can determine when the servo has reached its target position (or detect if something is interfering with its ability to get there).  This feedback also enables more complex closed-loop control of the servo from your main controller.\u003c\/p\u003e\n\u003cp\u003eThe FT5335M-FB is a giant-scale (also called 1\/4-scale or mega-scale) digital servo from FEETECH that can deliver more than twice the torque of our \u003ca href=\"https:\/\/www.pololu.com\/product\/1057\"\u003estrongest standard-size servo\u003c\/a\u003e, offering up to 550 oz-in at 7.4V or 480 oz-in at 6 V (if you need even more torque than this, check out the much larger \u003ca href=\"https:\/\/www.pololu.com\/product\/1390\"\u003eTorxis monster servos\u003c\/a\u003e, and if you need a lot of torque in a smaller size or with more speed, consider the \u003ca href=\"https:\/\/www.pololu.com\/product\/3427\"\u003eFT5121M\u003c\/a\u003e and \u003ca href=\"https:\/\/www.pololu.com\/product\/3428\"\u003eFT5313M high-torque digital servos\u003c\/a\u003e).  The picture on the right shows how the giant-size FT5335M compares to a standard-size servo.\u003c\/p\u003e\n\u003cp\u003eLike the FT5335M, the FT5335M-FB works with standard RC servo pulses, providing a running angle of approximately 120° over a servo pulse range of 900 µs to 2100 µs.  The feedback voltage varies linearly over this range by a couple of volts.  Many hobby servos can be operated beyond their standard ranges by using a wider pulse range, but please note that in our tests, we were not able to expand the range of the FT5335M significantly beyond 120° (the servo did not respond to pulses below around 900 µs or above around 2100 µs).\u003c\/p\u003e\n\u003cp\u003eThe servo signal, power, and ground are provided through a 3-wire servo cable that is terminated with a standard  \u003ca href=\"https:\/\/www.pololu.com\/product\/1924\"\u003eJR-style connector\u003c\/a\u003e, which is Futaba-compatible.  The feedback is accessible through a separate green wire that is terminated like our female \u003ca href=\"https:\/\/www.pololu.com\/category\/65\/premium-jumper-wires\"\u003epremium jumper wires\u003c\/a\u003e and works with standard \u003ca href=\"https:\/\/www.pololu.com\/category\/134\/0.1-2.54-mm-male-headers\"\u003e0.1″ male header pins\u003c\/a\u003e.  These cables are approximately 12″ (30 cm) long. Unlike typical hobby servos, the FT5335M has an operating voltage range of 6 V to 7.4 V.\u003c\/p\u003e\n\u003cp class=\"note_warning\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This servo can draw bursts of current in excess of 9 A at 7.4 V, so please make sure you have an appropriate power supply.  For comparison, a typical standard-size servo might draw around an amp when straining.\u003c\/p\u003e\n\u003ctable class=\"side_by_side_pics\"\u003e\n\t\u003ctr\u003e\n\t\t\u003ctd style=\"vertical-align: bottom;\"\u003e\u003ctable class=\"picture_with_caption center\"\u003e\n\u003ctr\u003e\u003ctd style=\"max-width: 210px\"\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J9680.1200.jpg?cef2d478e9894b613d0db7bf46b0a26a\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id and feedback connectors on the feetech servos with position feedback. data-picture-id=\"0J9680\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J9680.210.jpg?cef2d478e9894b613d0db7bf46b0a26a\"\u003e\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth style=\"max-width: 210px\"\u003e\u003cp\u003eServo and feedback connectors on the FEETECH servos with position feedback.\u003c\/p\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/td\u003e\n\t\t\u003ctd style=\"vertical-align: bottom;\"\u003e\u003ctable class=\"picture_with_caption center\"\u003e\n\u003ctr\u003e\u003ctd style=\"max-width: 370px\"\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7688.1200.jpg?1d056b851cdd2579bc3e29e9225947f3\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id ultra-high-torque high-voltage digital giant servo ft5335m with included hardware might vary data-picture-id=\"0J7688\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7688.370.jpg?1d056b851cdd2579bc3e29e9225947f3\"\u003e\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth style=\"max-width: 370px\"\u003e\u003cp\u003eFEETECH Ultra-High-Torque, High-Voltage Digital Giant Servo FT5335M with included hardware (actual hardware might vary).\u003c\/p\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/td\u003e\n\t\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe included servo horns are plastic, but we also carry a compatible \u003ca href=\"https:\/\/www.pololu.com\/product\/3431\"\u003emetal horn\u003c\/a\u003e (sold separately) that can be used as a more robust lever arm in ultra-high-torque applications:\u003c\/p\u003e\n\u003ctable class=\"side_by_side_pics\"\u003e\n\t\u003ctr\u003e\n\t\t\u003ctd\u003e\u003ctable class=\"picture_with_caption center\"\u003e\n\u003ctr\u003e\u003ctd style=\"max-width: 250px\"\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7965.1200.jpg?d781c0eb0686568a4bbb2ca89974ee25\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id servo horn for the feetech giant ft5335m. data-picture-id=\"0J7965\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7965.250.jpg?d781c0eb0686568a4bbb2ca89974ee25\"\u003e\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth style=\"max-width: 250px\"\u003e\u003cp\u003eMetal servo horn for the FEETECH giant servo FT5335M.\u003c\/p\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/td\u003e\n\t\t\u003ctd\u003e\u003ctable class=\"picture_with_caption center\"\u003e\n\u003ctr\u003e\u003ctd style=\"max-width: 250px\"\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7967.1200.jpg?cdbd96d14b907c5bcf32d77e871097e9\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id servo horn on a feetech giant ft5335m. data-picture-id=\"0J7967\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7967.250.jpg?cdbd96d14b907c5bcf32d77e871097e9\"\u003e\u003c\/a\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth style=\"max-width: 250px\"\u003e\u003cp\u003eMetal servo horn on a FEETECH giant servo FT5335M.\u003c\/p\u003e\u003c\/th\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/td\u003e\n\t\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe picture below shows the all-metal gear train that helps the servo deliver such high torque:\u003c\/p\u003e\n\u003ctable class=\"picture_with_caption center\"\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7690.1200.jpg?4efe541406c4ac8c8d457c7eb699fe19\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id feetech ultra-high-torque high-voltage digital giant servo ft5335m has an all-metal gear train. data-picture-id=\"0J7690\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7690.450.jpg?4efe541406c4ac8c8d457c7eb699fe19\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\n\u003cp\u003eFor more information about this servo, see the \u003ca href=\"\/file\/0J1434\/FT5335M-specs.pdf\"\u003eFT5335M datasheet\u003c\/a\u003e (111k pdf) (please note that this is the datasheet for the standard FT5335M, so it does not include any information about the special feedback modification).\u003c\/p\u003e\n\u003cp class=\"note_warning\"\u003eNote that, as with most hobby servos, stalling or back-driving this servo can damage it.\u003c\/p\u003e\n\u003ch2\u003eComparison to the Power HD 1235MG servo\u003c\/h2\u003e\n\u003cp\u003eThis servo is a lower-cost alternative to the \u003ca href=\"https:\/\/www.pololu.com\/product\/2375\"\u003e1235MG\u003c\/a\u003e from Power HD, which has nearly identical dimensions and similar performance. The two servos should be generally interchangeable for most applications.  The picture below shows both the FT5335M and the 1235MG side by side:\u003c\/p\u003e\n\u003ctable class=\"picture_with_caption center\"\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/a.pololu-files.com\/picture\/0J7691.1200.jpg?0e8e533a78f23a4480f4f23bb798d2c8\" class=\"noscript-fallback\"\u003e\u003cimg alt=\"\" class=\"zoomable\" data-gallery-pictures=\"[{\" id feetech ft5335m and power hd giant servos have very similar dimensions performance. data-picture-id=\"0J7691\" data-picture-longest_side=\"1200\" src=\"https:\/\/a.pololu-files.com\/picture\/0J7691.451.jpg?0e8e533a78f23a4480f4f23bb798d2c8\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\n\u003cp\u003eThe servo output splines have the same number of teeth, but the diameter of the one on the FT5335M is approximately 0.2 mm bigger.  This means that the servo horns included with the FT5335M can be used with the 1235MG, but not the other way around.\u003c\/p\u003e","brand":"FEETECH","offers":[{"title":"2-4 Settimane","offer_id":47696472801625,"sku":"POL-3446","price":77.52,"currency_code":"EUR","in_stock":true},{"title":"1 Giorno","offer_id":47885476757849,"sku":"POL-3446\/A","price":77.52,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/1009\/7753\/files\/0J9686.1200.jpg?v=1705451475","url":"https:\/\/robot-italy.com\/products\/3446-feetech-ultra-high-torque-high-voltage-digital-giant-servo-ft5335m-fb-with-position-feedback","provider":"Robot Italy","version":"1.0","type":"link"}