Firmware for listening command

Budul · July 21, 2025, 6:51pm

hi,
I have a simple firmware for the power module, everything works, now I would like to be able to send a command/value to the module. How do I do it the easiest way? Thank you

hub.martin · July 22, 2025, 7:19am

Hi, since the power module is externally powered, you might initialize radio so it will listen.

Take inspiration from generic FW where the power module is powered and there is radio event handler set

github.com

hardwario/twr-generic-node/blob/main/src/application.c#L215


      
              // static event_param_t flood_detector_event_param = {.next_pub = 0};
              // twr_flood_detector_init(&flood_detector, TWR_FLOOD_DETECTOR_TYPE_LD_81_SENSOR_MODULE_CHANNEL_A);
              // twr_flood_detector_set_event_handler(&flood_detector, flood_detector_event_handler, &flood_detector_event_param);
              // twr_flood_detector_set_update_interval(&flood_detector, FLOOD_DETECTOR_UPDATE_INTERVAL);
          
              static twr_module_pir_t pir;
              twr_module_pir_init(&pir);
              twr_module_pir_set_event_handler(&pir, pir_event_handler, NULL);
          
          #if MODULE_POWER
              twr_radio_set_event_handler(radio_event_handler, NULL);
          
              twr_module_power_init();
              twr_led_strip_init(&led_strip.self, twr_module_power_get_led_strip_driver(), &led_strip_buffer);
          
              twr_module_relay_init(&relay_0_0, TWR_MODULE_RELAY_I2C_ADDRESS_DEFAULT);
              twr_module_relay_init(&relay_0_1, TWR_MODULE_RELAY_I2C_ADDRESS_ALTERNATE);
          
              led_strip.update_task_id = twr_scheduler_register(led_strip_update_task, NULL, TWR_TICK_INFINITY);
          #else
              twr_module_battery_init();