LEDShim [Errno 11] Resource temporarily unavailable

Support
1

I receoved a new ledshim and whem trying tpo get working i get the following error

return self._register(_CONFIG_BANK, _SHUTDOWN_REGISTER, not value)
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File “/usr/local/lib/python3.11/dist-packages/ledshim/is31fl3731.py”, line 305, in _register
self._bank(bank)
File “/usr/local/lib/python3.11/dist-packages/ledshim/is31fl3731.py”, line 301, in _bank
self.i2c.write_i2c_block_data(self.address, _BANK_ADDRESS, [bank])
BlockingIOError: [Errno 11] Resource temporarily unavailable

Can anyone help to advise what the issue might be. I have the ledshim soldered onto a header.
I have checked the soldering incase of any contact between pins.
I also use a multi meter to check continuity from the top of the header to the botom and thats fine.

2

What version Pi OS is installed?
And what example are you trying to run?

3

I have multiple ledshim’s, all work apart from 2.
The example i am running

sudo rm /usr/lib/python3.11/EXTERNALLY-MANAGED

sudo curl https://get.pimoroni.com/ledshim | bash

sudo python3 /home/pi/Pimoroni/ledshim/examples/rainbow.py
4

If others work, that implies hardware rather than software - I’d suggest getting some clear (in focus!) pictures of your soldering.

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5

The LED-shim is declared as fraction-fit and doesn’t need soldering. Which is a promise that cannot be fulfilled. The time you save by not soldering will be wasted for tracking down errors.

If yo don’t want to solder: make at least sure that the I2C and power-pins connect. I usually put a female socket above the led-shim to make sure it is really pressed down and the pins line up.

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