| Electronics > Beginners |
| Lwmesh Power saving |
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| Peili:
My application uses Watch Dog Timer interrupt other than Halsleep function.. My scenario is End Device wakeup and send it's App_Addr to nearest Router and go for sleep. WDT is 2seconds.. only that much i need. no need for routing.. Just Wakeup ,Send and Sleep.... But for that scenario the device take 4milliseconds ON time.. My End Device is a Battery powered device(atmega256rfr2). I can't afford this type of power consumption... What are the factors affecting the power Consumption and how can i reduce it by code wise? I'm really stuck into it :-\ Here i'm attaching my Wsndemo for EndDevice the configuration file and sleep function |
| ataradov:
How did you measure that 4 ms time? It takes some time to send a frame and receive an ACK. I don't know if 4 ms is justified or not in this case. You need to measure different part of the process and see what takes the longest time and eliminate that. |
| Peili:
--- Quote from: ataradov on September 18, 2019, 05:01:38 am ---How did you measure that 4 ms time? It takes some time to send a frame and receive an ACK. I don't know if 4 ms is justified or not in this case. You need to measure different part of the process and see what takes the longest time and eliminate that. --- End quote --- Measured it by switching one Pin in my board in sleep --- Code: --- case APP_STATE_SLEEP: { PORTD&=~(1<<PD6);//sleep HAL_Sleep(APP_SENDING_INTERVAL); appState = APP_STATE_WAKEUP; } break; case APP_STATE_WAKEUP: { NWK_WakeupReq(); PORTD|=(1<<PD6);//sleep appState = APP_STATE_SEND; } break; --- End code --- here PD6 is the pin I'm switching and measuring... |
| ataradov:
Ok, now do the same for all steps of the sending process and see what takes all this time. I don't know what could be taking that long. |
| Peili:
Ok i will check and update you sir |
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