I’m having an issue with the ScrollPhat. I’ve read other replies and posts in the forums but no solutions have yet worked.
When I try to run any of the examples after installation (which all works fine) I get errors. Specifically, when running test-all.py I get:
Traceback (most recent call last):
File “test-all.py”, line 7, in
File “/usr/lib/python2.7/dist-packages/scrollphat/init.py”, line 20, in
controller = IS31FL3730(smbus, font)
File “/usr/lib/python2.7/dist-packages/scrollphat/IS31FL3730.py”, line 21, in init
File “/usr/lib/python2.7/dist-packages/scrollphat/IS31FL3730.py”, line 62, in set_mode
self.bus.write_i2c_block_data(self.i2cConstants.I2C_ADDR, self.i2cConstants.CMD_SET_MODE, [self.i2cConstants.MODE_5X11])
IOError: [Errno 5] Input/output error
I’ve double checked all pins (and yes, the header is soldered on!) and performed continuity checks but can’t find a problem.
Is this usually a hardware or a software issue? And is there any other checks I should make?
Hope you can help!