Smart network devices

A first device comprising a computer including a processor and a memory, the memory including instructions to program the processor such that the processor is programmed to:

• identify that a second device on a communications bus is one and only one of (1) a calibration device programmed to control two-way communications with the first device, (2) a local interconnect network (LIN) master device programmed to control two-way communications with the first device and (3) a custom master device programmed to only receive messages from the first device, wherein to identify the second device on the communications bus, the processor is further programmed to:
• detect a power up;
• and
• set a communications speed for receiving, on the communications bus, either (1) a calibration message from the calibration device or (2) a LIN message from the LIN master device;
• and
• select an operating mode specified for communication with the identified one of the calibration device, the LIN master device, and the custom master device.

A system comprising:

• a communications bus;
• a first device including a first computer including a first processor and a first memory, the first memory including first instructions such that the first processor is programmed to:
• identify a configuration on the communications bus comprising one and only one of (1) a first bus configuration including the first device and a local interconnect network (LIN) device and no custom device, (2) a second bus configuration including the first device and a custom device, and no LIN device, and (3) a third bus configuration including the first device and both the LIN device and the custom device, wherein the LIN device is a two-way communications device programmed to receive and respond to LIN messages from the first device and the custom device is a one-way communications device programmed only to transmit messages to the first device, wherein, to identify the communications bus configuration, the processor is programmed to:
• detect a power-up;
• and
• operate in a receive mode to await receipt of a custom message from the custom device for a first predetermined amount of time after detecting the power-up;
• select an operating mode specified for communications with the identified bus configuration;
• and
• control send and receive times of the first device based on the selected operating mode;
• and
• a second device including a second computer including a second processor and a second memory, the second memory including second instructions to program the second processor such that the second processor is programmed to:
• identify that a third device on the communications bus is one and only one of (1) a calibration device programmed to control two-way communications with the second device, (2) a LIN master device programmed to control two-way communications with the second device and (3) a custom master device programmed to only receive messages from the second device;
• and
• select an operating mode specified for communication with the identified one of the calibration device, the LIN master device and the custom master device, wherein the third device and the first device may be a same device.