io-setup.md

Documentation index

• Addressing
  • set_id device_id get_bus_id set_bus_id get_mac set_mac
• Configuration
  • set_communication_mode set_shared_network set_router include_sender_info set_crc_32 set_packet_auto_deletion set_acknowledge set_packet_id include_port include_mac
• Data reception
  • set_receiver receive
• Data structures
  • PJON_Endpoint PJON_Packet_Info
• Data transmission
  • begin reply reply_blocking send send_packet send_packet_blocking send_repeatedly reply reply_blocking forward forward_blocking
• Error handling
  • set_error
• Routing
  • PJONSimpleSwitch PJONSwitch PJONRouter PJONDynamicRouter PJONInteractiveRouter
• IO setup
  • strategy

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IO setup

The physical layer configuration is handled by the strategy entity, if you want to communicate bi-directionally on a single pin with SoftwareBitBang or AnalogSampling use:

 PJONSoftwareBitBang bus;
 bus.strategy.set_pin(12);

With this setup it is possible to communicate in PJON_HALF_DUPLEX mode with up to 254 different devices on the same physical pin. If for some reason you need to keep separate the two lines, for example if using OverSampling with separate radio transmitter and receiver modules, you can pass 2 separate pins:

 PJONOverSampling bus;
 bus.strategy.set_pins(11, 12);

If you don't need bidirectional communication and you have only the transmitter on one side and the receiver on the other side you can use the PJON_NOT_ASSIGNED constant:

 PJONOverSampling bus;
 // Operate in simplex mode
 bus.set_communication_mode(PJON_SIMPLEX);
  // Use only receiver pin
 bus.strategy.set_pins(11, PJON_NOT_ASSIGNED);

See the readme of the strategy you are using to have additional information on its dedicated physical layer configuration.