Hi,
I have just assembled my Waveshare JetBot AI Kit with the Jetson Nano onboard.
I have installed the jetbot_image_v0p3p2.zip image, connected a HDMI monitor, USB mouse and keyboard, charged the 3x 18650 batteries and was able to establish a WLAN connection .
Then I disconnected the peripherals and tried to connect my laptop via WLAN with the JetBot WLAN module. The display on the expansion board of the JetBot didn’t show anything, so I had to use an IP scanner to find the address, which worked out and I was able to establish a connection on port 8888 with the Jupyter Notebook. Unfortunately when I ran the notebook cell with “robot = Robot()” I received a timeout error (see below).
So it seems only the WLAN module and the SD-card work, but I don’t get any connection with the robot.
I have attached two pictures.
What am I doing wrong?!
Thanks in advance!
Best regards
KwF
Error Message:
TimeoutError Traceback (most recent call last)
in
----> 1 robot = Robot()
/usr/local/lib/python3.6/dist-packages/jetbot-0.3.0-py3.6.egg/jetbot/robot.py in init(self, *args, **kwargs)
20 def init(self, *args, **kwargs):
21 super(Robot, self).init(*args, **kwargs)
—> 22 self.motor_driver = Adafruit_MotorHAT(i2c_bus=self.i2c_bus)
23 self.left_motor = Motor(self.motor_driver, channel=self.left_motor_channel, alpha=self.left_motor_alpha)
24 self.right_motor = Motor(self.motor_driver, channel=self.right_motor_channel, alpha=self.right_motor_alpha)
/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_MotorHAT_Motors.py in init(self, addr, freq, i2c, i2c_bus)
229 self.motors = [ Adafruit_DCMotor(self, m) for m in range(4) ]
230 self.steppers = [ Adafruit_StepperMotor(self, 1), Adafruit_StepperMotor(self, 2) ]
→ 231 self._pwm = PWM(addr, debug=False, i2c=i2c, i2c_bus=i2c_bus)
232 self._pwm.setPWMFreq(self._frequency)
233
/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py in init(self, address, debug, i2c, i2c_bus)
57 self.i2c = get_i2c_device(address, i2c, i2c_bus)
58 logger.debug(“Reseting PCA9685 MODE1 (without SLEEP) and MODE2”)
—> 59 self.setAllPWM(0, 0)
60 self.i2c.write8(self.__MODE2, self.__OUTDRV)
61 self.i2c.write8(self.__MODE1, self.__ALLCALL)
/usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_PWM_Servo_Driver.py in setAllPWM(self, on, off)
93 def setAllPWM(self, on, off):
94 “Sets a all PWM channels”
—> 95 self.i2c.write8(self.__ALL_LED_ON_L, on & 0xFF)
96 self.i2c.write8(self.__ALL_LED_ON_H, on >> 8)
97 self.i2c.write8(self.__ALL_LED_OFF_L, off & 0xFF)
/usr/local/lib/python3.6/dist-packages/Adafruit_GPIO-1.0.4-py3.6.egg/Adafruit_GPIO/I2C.py in write8(self, register, value)
114 “”“Write an 8-bit value to the specified register.”“”
115 value = value & 0xFF
→ 116 self._bus.write_byte_data(self._address, register, value)
117 self._logger.debug(“Wrote 0x%02X to register 0x%02X”,
118 value, register)
/usr/local/lib/python3.6/dist-packages/Adafruit_PureIO-1.0.4-py3.6.egg/Adafruit_PureIO/smbus.py in write_byte_data(self, addr, cmd, val)
266 # Send the data to the device.
267 self._select_device(addr)
→ 268 self._device.write(data)
269
270 def write_word_data(self, addr, cmd, val):
TimeoutError: [Errno 110] Connection timed out