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Member #1343107

Member Since: April 3, 2018

Country: United States

  • I'm driving 4 large servos from the sparkfun servo hat off a pi3b+. I've removed the solder on the hat. I have powered the Pi and the hat with separate 5v 2.1A usb power supplies. A green light appears on the hat, I'm using python and get the error on the line (bus.write_byte_data(addr, 0, 0x20)). Error: IOError [errono 121] Remote I/O error. Any ideas? I've treid with only pins 1-8 connected from the pi to the hat (jumper leads) and only the sda/scl connected. I get the same error both times. Can someone do a tutorial on removing the solder and which wires need to be connected to the pi at a minimum via jumper leads?

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