Hi, i am bulding a project of pan tilt.and to control the motors, i typed:
cd
git clone https://github.com/sparkfun/RPi_PanTilt_Camera_Kit.git
python RPi_PanTilt_Camera_Kit/Firmware/pantilt.py &
now,after typind 3 statement,i am getting an error:
Traceback (most recent call last):
File "RPi_PanTilt_Camera_Kit/Firmware/pantilt.py", line 13, in <module>
bus.write_byte_data(addr, 0, 0x20)
IOError: [Errno 121] Remote I/O error
how do i get rid of this?
i have checked my i2c also and its as follows:
i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
i dont know what to do?please can anyone help me asap..
error [121] remote I/O error.
1174 Views - Created 24/03/2020
24/03/2020
Posted by:
chahat
24/03/2020
Posted by:
andrew
Location:
United Kingdom
Hello
According to the source code for the PanTilt firmware, it is looking for a PWM controller device on address 0x40. The only device on your I2C bus is on 0x15 which is why you are getting a remote I/O error.
Do you have a PWM controller like the SparkFun Raspberry Pi Zero W Camera Kit or our Servo Pi installed on your Raspberry Pi?
According to the source code for the PanTilt firmware, it is looking for a PWM controller device on address 0x40. The only device on your I2C bus is on 0x15 which is why you are getting a remote I/O error.
Do you have a PWM controller like the SparkFun Raspberry Pi Zero W Camera Kit or our Servo Pi installed on your Raspberry Pi?
24/03/2020
Posted by:
chahat
sorry,to be honest..i really downt know about this PWM?what is it and what do i do to check if i have it installed or not?
24/03/2020
Posted by:
andrew
Location:
United Kingdom
PWM is short for pulse width modulation which is the type of signal needed to control a servo motor.
You will need to have an expansion card installed that generates the PWM signal.
If you are using the SparkFun PanTilt camera kit you should have an expansion board that looks like this.
Our version of the board is the Servo Pi which looks like this
Without one of these boards installed you will not be able to use the PanTilt software from GitHub.
You will need to have an expansion card installed that generates the PWM signal.
If you are using the SparkFun PanTilt camera kit you should have an expansion board that looks like this.
Our version of the board is the Servo Pi which looks like this
Without one of these boards installed you will not be able to use the PanTilt software from GitHub.
24/03/2020
Posted by:
chahat
oh..ohk..i dont have either of these..thanx alot..i will look into it..but the question is where to attach this..coz i have pi zero with pan tilt and they have been attached together...where does either of these things go that you listed?
24/03/2020
Posted by:
andrew
Location:
United Kingdom
The expansion board plugs into the 40-pin GPIO header on top of the Raspberry Pi Zero. It should look like this when installed.
24/03/2020
Posted by:
chahat
great..thanks alot for help..really appreciate it..:)
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