# Pimoroni Melexis MLX90640 Thermal Camera Blank
**URL:** https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059
**Category:** Support
**Created:** [October 16, 2021, 10:17pm UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059 "2021-10-16T22:17:43Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@sumi](https://forums.pimoroni.com/u/sumi)
#### Post date: [October 16, 2021, 10:17pm UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/1 "2021-10-16T22:17:43Z")
I am trying to connect Pimoroni Melexis MLX90640 Thermal Camera to a Raspberry Pi 3 B+, however after trying several attempts using python programs, the camera only showed “Figure 1” blank.
Can you please share your thoughts?
Thank you in advance for your help.
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### Author:  [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)
#### Post date: [October 17, 2021, 8:38am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/2 "2021-10-17T08:38:42Z")
How is it connected?
If you do an i2c scan is it detected?
`sudo i2cdetect -y 1`
Any error messages when you run your python program?
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### Author:  [@sumi](https://forums.pimoroni.com/u/sumi)
#### Post date: [October 18, 2021, 1:45am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/3 "2021-10-18T01:45:38Z")
Thank you for your kind response.
Mlx90640 is connected directly to raspberrypi 3 b+ pin out 3.6V, SDA, SCl, NC, and GND.
sudo i2cdetect -y 1 detected “33”
There was no error message when I run the python program, only display Figure 1 and blank.
Anything should I adjust on the mlx90640?
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### Author:  [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)
#### Post date: [October 18, 2021, 9:05am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/4 "2021-10-18T09:05:29Z")
If the camera has a pull off protective cover, make sure you removed it.
Is this the guide your following?
[mlx90640-library/examples/src at master · pimoroni/mlx90640-library (github.com)](https://github.com/pimoroni/mlx90640-library/tree/master/examples/src)
I don’t own one, just so you know. I do use a ton of Pimoroni i2c breakouts though. And several camera setups using the Pi Foundation camera.
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### Author:  [@sumi](https://forums.pimoroni.com/u/sumi)
#### Post date: [October 22, 2021, 9:21pm UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/5 "2021-10-22T21:21:05Z")
# Thank you for your kind guidance. I have tried to follow “the guide” However, it appeared this error {AttributeError: ‘SMBus’ object has no attribute ‘msg’}
# pi@raspberrypi:~/seeed\_ircamera $ sudo python3 seeed\_python\_ircamera.py libEGL warning: DRI2: failed to authenticate QStandardPaths: XDG\_RUNTIME\_DIR not set, defaulting to ‘/tmp/runtime-root’ Traceback (most recent call last): File “seeed\_python\_ircamera.py”, line 322, in run() File “seeed\_python\_ircamera.py”, line 316, in run dataThread = DataReader(port) File “seeed\_python\_ircamera.py”, line 66, in **init** self.dataHandle = seeed\_mlx90640.grove\_mxl90640() File “/usr/local/lib/python3.7/dist-packages/seeed\_mlx90640.py”, line 58, in **init** self.refresh\_rate = RefreshRate.REFRESH\_0\_5\_HZ File “/usr/local/lib/python3.7/dist-packages/seeed\_mlx90640.py”, line 83, in refresh\_rate self.\_I2CReadWords(0x800D, controlRegister) File “/usr/local/lib/python3.7/dist-packages/seeed\_mlx90640.py”, line 699, in \_I2CReadWords write = self.bus.msg.write(self.addr,[addr\>\>8,addr&0xFF]) File “/usr/local/lib/python3.7/dist-packages/grove/i2c.py”, line 51, in **getattr** return getattr(self.instance, name) AttributeError: ‘SMBus’ object has no attribute ‘msg’
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### Author:  [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)
#### Post date: [October 23, 2021, 7:55am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/6 "2021-10-23T07:55:20Z")
Are you running it from an IDE or from terminal?
Python 2 or python 3?
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### Author:  [@sumi](https://forums.pimoroni.com/u/sumi)
#### Post date: [October 24, 2021, 2:33am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/7 "2021-10-24T02:33:03Z")
I am running it from a terminal with Python3
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### Author:  [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)
#### Post date: [October 24, 2021, 9:56am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/8 "2021-10-24T09:56:26Z")
Wish I had more but I’m at the end of my skill level with this one. =(
Hel Gibbons might be able to help though. @hel
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### Author:  [@hel](https://forums.pimoroni.com/u/hel)
#### Post date: [October 25, 2021, 9:21am UTC](https://forums.pimoroni.com/t/pimoroni-melexis-mlx90640-thermal-camera-blank/18059/9 "2021-10-25T09:21:10Z")
It looks like you’re trying to use a Seeed library there, not the [Pimoroni one](https://github.com/pimoroni/mlx90640-library)?
I found this Github issue that might be of help: [MLX9060 I2C lib issue: AttributeError: 'SMBus' object has no attribute 'msg' · Issue #2 · Seeed-Studio/Seeed\_Python\_MLX9064x · GitHub](https://github.com/Seeed-Studio/Seeed_Python_MLX9064x/issues/2) - sounds like it might be worth trying uninstalling and reinstalling [grove.py](https://github.com/Seeed-Studio/grove.py)?