Post by bigal on Sept 13, 2019 16:43:52 GMT
I use the I2C to drive additional I/Os (MCP23017). It works most of the times. Sometimes the I2C fails after program update. Then the only way to reactivate the bus is to power-off/power-on the ShieldBuddy.
I use I2C on the pin 20/21 with the supplied Wire-library.
When the bus is not working there is no signal at all on the pins (tested with my oscilloscope)...
Any idea?
Alex
I use I2C on the pin 20/21 with the supplied Wire-library.
When the bus is not working there is no signal at all on the pins (tested with my oscilloscope)...
Any idea?
Alex
