Robotic Arm Electrical Interface

1 The electrical interface of the manipulator base

1.1 Introduction to the base

​ A. The front interface of the base is shown in Figure 1-1 :

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​ Figure 1-1 Front view of the base

​ B. The interface on the base is shown in Figure 1-2 :

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​ Figure 1 - 2 The top view of the base

C. The interface on the right side of the base is shown in Figure 1-3 :

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​ Figure 1 - 3 Right side view of the base

1.2 Base interface description

Note: The functional interface groups are all 2.54mm DuPont interfaces, and 2.54mm DuPont cables can be used externally .

​ A. Figure 1-4, Figure 1-5, Figure 1-6, and Figure 1-7 are the signal names of the four expansion interface groups on the front of the base, which are used to connect different Arduino development boards.

​ Expansion interface group 1 and expansion interface group 4 Can be used to expand the same development board as Arduino UNO interface, such as: Arduino UNO, Arduino MEGA 2560 , etc;

​ Expansion interface group 2 and expansion interface group 3 It can be used to extend the pin for the Arduino MKR W iFi 1010 interface consistent development board ;

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​ Figure 1 - 4 Signal names of extended interface group 1

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​ Figure 1 - 5 Signal names of extended interface group 2

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​ Figure 1-6 Signal names of extended interface group 3

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​ Figure 1 - 7 Signal names of extended interface group 4

​ B. Figure 1-8 shows the signal names of the expansion interface group 5 on the base. This part of the interface corresponds to each functional interface of the connected Arduino development board.

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​ Figure 1 - 8 Signal names of extended interface group 5

​ C. Power DC interface: use DC power socket, outer diameter 6.5mm , inner diameter 2.0mm ;Can use the 8.4V 5A DC power adapter provided by the manufacturer to mycobot 280 for power supply.

2 Electrical interface at the end of the robotic arm

2.1 Introduction to the end of the robotic arm

A. The schematic diagram of the side interface at the end of the robot arm is shown in Figure 2-1 and Figure 2-2 :

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​ Figure 2-1 Side view of the end of the robotic arm

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​ Figure 2-2 Side view of the end of the robotic arm

2.2 Terminal interface description

​ A. _ Table 2-1 shows the definition of each interface in the functional interface group.

label name signal name Function Remark
5V0 5V0 Power supply, D C5V
GND GND Mainboard power signal ground
3V3 3V3 DC 3.3V power supply
twenty two GPIO 22 3.3V-OUT-PNP output/3.3V-INT input
19 GPIO 19 3.3V-OUT-PNP output/3.3V-INT input
twenty three GPIO 23 3.3V-OUT-PNP output/3.3V-INT input
33 GPIO 33 3.3V-OUT-PNP output/3.3V-INT input

​ table 2-1 Function interface group four

​ B. Type C interface : It can be used to communicate with PC terminal and update firmware.

​ C. Grove interface 4: The definition of Grove interface 4 is shown in Figure 2-3

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​ Figure 2 - 3 Grove Interface 4

​ D. Servo interface: used when expanding the gripper at the end, and currently supports the use of the matching adaptive gripper.

​ E. A tom: for 5X5 R GB LED (G 27 ) display and key function (G 39 )

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