Electrical Interface of myCobot 280 Jetson Nano 2020

1 Introduction

1.1 Pedestal

A. Figure 2.1.3.2-1 shows the front ports and buttons of the pedestal:

2.1.3.2-1

Figure 2.1.3.2-1 Front view of the base

  • ① Switch
  • ② DC Interface of power
  • ③ Functional Interface Group 1
  • ④ Type C interface
  • ⑤ HDMI interface
  • ⑥ USB3.0
  • ⑦ USB2.0
  • ⑧ The network interface
  • ⑨ Micro USB interface

1.2 Introduction to Interfaces on Pedestal

Notice: Functional interface group is Dupont interface of 2.54mm, and 2.54mm Dupont wire can be used externally.

  • A. Table 2.1.3.2-1 shows the definition of each interface of the functional interface group 1.
Table 2.1.3.2-1
Label Signal Type Function Remark
GND GND p GND
26 GPIO26 I/O GPIO26
19 GPIO19 I/O GPIO19
13 GPIO13 I/O GPIO13
06 GPIO6 I/O GPIO6
05 GPIO5 I/O GPIO5
00 GPIO0 I/O GPIO0
GND GND p GND
11 GPIO11 I/O GPIO11
09 GPIO9 I/O GPIO9
10 GPIO10 I/O GPIO10
3.3 3.3V P DC 3.3V
22 GPIO22 I/O GPIO22
27 GPIO27 I/O GPIO27
17 GPIO17 I/O GPIO17 PAD serial port occupation
GND GND p GND
04 GPIO4 I/O GPIO4
03 GPIO3 I/O GPIO3 Occupied by SCL (serial clock line) in the I2C bus
NC NC - - Currently not supported
3.3 3.3V P DC 3.3V
21 GPIO21 I/O GPIO21
20 GPIO20 I/O GPIO20
16 GPIO16 I/O GPIO16
GND GND p GND
12 GPIO12 I/O GPIO12
GND GND p GND
01 GPIO1 I/O GPIO1
07 GPIO7 I/O GPIO7
08 GPIO8 I/O GPIO8
25 GPIO25 I/O GPIO25
GND GND p GND
24 GPIO24 I/O GPIO24
23 GPIO23 I/O GPIO23
GND GND p GND
18 GPIO18 I/O GPIO18 PAD serial port occupation
NC NC - - Currently not supported
NC NC - - Currently not supported
GND GND p GND
5V 5V P DC 5V
5V 5V P DC 5V

Notice:

  1. I/O: This function signal includes input and output combination.

  2. When the single tube corner is set as the output terminal, it will output 3.3V voltage.

  3. The source current of a single tube angle decreases with the increase of the number of pins, from about 40mA to 29mA.

  4. If a certain GPIO is set to the output mode and outputs a high level signal, the circuit connected to the LED is shown in Figure 2.1.3.2-2, and the LED will light up.

2.1.3.2-2

Figure 2.1.3.2-2

  1. In the case of using other functions, the IO function is unavailable, and the other function table of the function interface is shown in Figure 2.1.3.2-3.

2.1.3.2-3

Figure 2.1.3.2-3

  • B. Power DC interface: It is a DC power socket with an outer diameter of 6.5 mm and an inner diameter of 2.0 mm; the 8.4V 5A DC power adapter provided by the manufacturer can be used to power the mycobot280.

  • C. Switch: After pressing it, the internal power turnes on, and the key lights up with a white light; when it is pressed again, the white light turns off, so does the internal power.

  • D. Type C interface: It can be used to connect and communicate with the PC.

  • E. HDMI interface: This interface is HDMI type A interface. If you want to display the robot operation interface, show the operation page to other equipment terminals by connecting the HDMI display interface.

  • F. USB2.0 interface: it is an interface for data connection conforming to the standard of main interface of 2.0; The USB port is used to copy program files and connect peripherals such as mouse and keyboard.

  • G. USB3.0 interface: it is an interface for data connection conforming to the standard of main interface of 3.0; The USB port is used to copy program files and connect peripherals such as mouse and keyboard.

    2.1.3.2-4

    Figure 2.1.3.2-4

  • H. The network interface. They are (as shown in figure 2.1.3.2-5) ports for network data connection. Ethernet interfaces can be used for communication between a PC and a robotic system or for Ethernet communication with other devices.

    2.1.3.2-5

    Figure 2.1.3.2-5

  • I. Micro USB interface: it is an interface for data connection conforming to the standard of main interface of 2.0; users can use the Android cable to copy program files.

2 Electrical Interface of the End

2.1 Introduction to the End

  • A. Figure 2.1.3.2-7 and Figure 2.1.5.2-8 show the side interface of the end:

    2.1.3.2-6

    Figure 2.1.3.2-6 Side view of the end of the robotic arm

    • ① Servo Interface
    • ② Atom

    2.1.3.2-7

    Figure 2.1.3.2-7 Side view of the end of the robotic arm

    • ① Functional InterFace Group 2
    • ② Grove
    • ③ Type C

2.2 Terminal Electrical Ports

  • A. The definitions of each interface of functional interface group 2 are shown in Table 2.1.3.2-2:
Table 2.1.3.2-2
Label Signal Type Function Remark
5V 5V P DC 5V
GND GND P GND
3V3 3V3 P DC 3.3V
G22 G22 I/O GPIO22
G19 G19 I/O GPIO19
G23 G23 I/O GPIO23
G33 G33 I/O GPIO33

Notice:

  1. I: input only.

  2. I/O: This function signal includes input and output combination.

  3. When the single tube corner is set as the output terminal, it will output 3.3V voltage.

  4. The source current of a single tube angle decreases with the increase of the number of pins, from about 40mA to 29mA.

  5. If a certain GPIO is set to the output mode and outputs a high level signal, the circuit connected to the LED is shown in Figure 2.1.3.2-8, and the LED will light up.

2.1.3.2-8

Figure 2.1.3.2-8

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

  • C. Grove interface : The definition of Grove interface is shown in Figure 2.1.3.2-9

    2.1.3.2-9

​ Figure 2.1.3.2-9 Grove

  • D. Servo Interface. It is used when expanding the gripper at the end, and currently supports the use of the matchable adaptive gripper.

  • E. Atom. Displaying 5X5 RGB LED (G27) and key function (G39).

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