[Errno 121] Remote I/O error

[Kishwar]

Hello Sunfounder,

I am getting following error. Could you please help me on this?

Thanks.

pi@raspberrypi:~/Sunfounder_Smart_Video_Car_Kit_for_RaspberryPi/server $ python cali_server.py
offset_x = 11
offset_y = 0
offset = 0
turning0 = True
turning1 = True
[Errno 121] Remote I/O error

Your Pi Rivision is: 3 Module B
I2C bus number is: 1
Checking I2C device:
Commands "ls /dev/i2c-1" output:
/dev/i2c-1
I2C device setup OK
Your PCA9685 address is set to 0x40
i2cdetect output:
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: 70 -- -- -- -- -- -- --
Conneceted i2c device:
0x40
0x70
Wierd, I2C device is connected. Try to run the program again. If the problem's still, email the error message to [email protected]
pi@raspberrypi:~/Sunfounder_Smart_Video_Car_Kit_for_RaspberryPi/server $

[Kishwar]

Solved. It was power problem.

[pavana27]

How did the error resolve, please elaborate!

[RomanPanaget]

@Kishwar can you explain a little bit more ?