广播的时候是处在那种功耗模式,能进PM2或PM3吗?不然的话一节纽扣电池最多能用几天吧!
Albin Zhang:
就是beacon的应用啊。
广播的时候当然是TX了。之间用deepsleep
你可以用 http://www.ti.com/lit/an/swra478/swra478.pdf 算一下的。广播周期拉长一点,1年没问题的。下面是个例子,还是个connectable beacon (有RX)。
Bluetooth Smart Power consumption – Beta
Hardware
SmartRF06EB + CC2650EMSoftware
SimpleBLEPeripheral (pre-RTM)Supply Voltage
3V
Battery capacity [mAh]
230
Activity 1: Advertising
Standby Current [uA]1
Advertising Interval [ms]
1000
State
Time [µs]
Current [mA]
Re-Charge
83
1.6
132.8
Wake Up & Pre-Processing
898
3.39
3044.22
Radio Preparation
220
3.77
829.4
Transmit (TX)
202
7.19
1452.38
TX to RX transition
111
4.43
491.73
Recieve (RX)
184
6.34
1166.56
RX to TX transition
370
3.40
1258
Transmit (TX)
202
7.09
1432.18
TX to RX transition
111
4.54
503.94
Recieve (RX)
184
6.39
1175.76
RX to TX transition
370
3.36
1243.2
Transmit (TX)
202
6.87
1387.74
TX to RX transition
111
4.45
493.95
Recieve (RX)
184
6.42
1181.28
Post-Processing
409
3.5
1431.5
Going to Standby
230
0.85
195.5
17420.14
Total time of connection event
4071
Average Current draw during advertising event [mA]4.27908
Average current draw accounting for sleep [mA]
0.018416069
Avg. current draw during advertisement:
0.018
mA
Expected battery life:
12489
Hours
Expected battery life:
520
Days
BR. AZ
reere ff:
回复 Albin Zhang:
说的对,谢谢。
reere ff:
回复 Albin Zhang:
大神,你觉得我这样设定广播周期合适不(我是小白 啊,求别嫌弃)
#if 1 uint8 advType = GAP_ADTYPE_ADV_NONCONN_IND; // use non-connectable advertisements#else uint8 advType = GAP_ADTYPE_ADV_DISCOVER_IND; // use scannable unidirected advertisements#endif // Set the GAP Role Parameters GAPRole_SetParameter( GAPROLE_ADVERT_ENABLED, sizeof( uint8 ), &initial_advertising_enable );//使能广播 GAPRole_SetParameter( GAPROLE_ADVERT_OFF_TIME, sizeof( uint16 ), &gapRole_AdvertOffTime );//关十秒
uint16 ls = 1000; GAP_SetParamValue( TGAP_GEN_DISC_ADV_MIN, ls );//广播一秒
循环广播一秒,关十秒。
Albin Zhang:
回复 reere ff:
呵呵,我是代码小白。还是纯白。。。:-P
你可以在电源上串联一个10ohm的采样电阻,然后用示波器看一下电流的样子确认一下吧。
或者等楼下软件的帮你看看。
BR.AZ
da qin zheng sheng:
回复 Albin Zhang:
很好
da qin zheng sheng:
加上太阳能就可以了的!
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