I am attempting to send command packets between a control board and a peripheral. Unfortunately, when I attempt to read the packet on the peripheral device, the message is improperly truncated. Hardware: Command board - Custom 3.3V variant using ATMEGA2560 Peripheral board - Arduino Nano I2C con…

[image] whoneyc: why does it truncate part way through? We recommend not to use Serial functions in a interrupt routine. Because the onReceive handler is called from a interrupt and the Serial functions use interrupts themself. Store the data in a global variable and process the data in the …

Why is my I2C not read correctly?

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StefanL38 June 14, 2021, 8:59pm 2

Whar are the reasons against using a serial connection.
Serial is easier to use than I2C and an Atmega 2560 has 3 hardware-serial ports.

best regards Stefan

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Why is my I2C not read correctly?

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