The Robotic Hand Activity can be found in the Building Machines that Emulate Humans lesson plan. This lesson plan explores anatomy and the biomechanics of the human hand. Students build a sensorized glove and a straw robotic hand to aid in the learning process. When building the project, students may run into some problems. Here are some troubleshooting tips to help them get unstuck:
Problem - All flex sensors show -1 on Data In workbook tab.
Solution - Glove and hand connectors are reversed.
Problem - My sensorized finger doesn't move on the robotic hand.
Solution - The sensor could be faulty in the glove. If so, remove and replace or acquire one that's working to check that the leads are working.
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The servo motor is fried—replace it.
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The servo connector is backwards—switch all servo connections into your breadboard.
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Clear plastic servo arm holding the thread may have fallen off or is loose.
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Make sure that your microcontroller is flashed using the correct code.
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Make sure that you're using the correct Excel Workbook—each Hacking STEM project comes with its own customized workbook.
Problem - Excel Round 4 and 5 icons don't change.
Solution - Set Data channels to 22 or higher in the Workbook Settings tab.
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