add details for firmware update issues
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@ -248,6 +248,10 @@ Steps:
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- Scan for devices. All 12 motors should appear.
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- Scan for devices. All 12 motors should appear.
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- Select the motors one by one and move the arm. Check that the graphical indicator near the top right shows the movement.
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- Select the motors one by one and move the arm. Check that the graphical indicator near the top right shows the movement.
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** There is a common issue with the Dynamixel XL430-W250 motors where the motors become undiscoverable after their upgrading their firmware from Mac and Windows Dynamixel Wizard2 applications. When this occurs, it is required to do a firmware recovery (Select `DYNAMIXEL Firmware Recovery` and follow the prompts). There are two known workarounds to conduct this firmware reset:
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1) Install the Dynamixel Wizard on a linux machine and complete the firmware reset
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2) Use the Dynamixel U2D2 in order to perform the reset. This U2D2 can be purchased [here](https://www.robotis.us/u2d2/).
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**Read and Write with DynamixelMotorsBus**
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**Read and Write with DynamixelMotorsBus**
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To get familiar with how `DynamixelMotorsBus` communicates with the motors, you can start by reading data from them. Copy past this code in the same interactive python session:
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To get familiar with how `DynamixelMotorsBus` communicates with the motors, you can start by reading data from them. Copy past this code in the same interactive python session:
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