Sensebender Micro
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Are there any recommendations for a low power temperature, humidity sensor regarding the update cycle.
Currently I plan to wake up the sensor each 10 minutes instead of each 1 minute to update the values. This should increase the duration of the battery. A complete update of all values if performed each 30 minutes as usual.
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I would probably choose 5 minutes interval instead.. I have updated the sensebendermicro sketch tonight (just waiting for @hek to approve it). so it holds of on the transmissions a bit. Now the temperature needs to change more than 0.5 degrees from the previous transmitted value. OR
humidity needs to change more than 0.5, measured with a moving average. OR
30 minutes since last transmission. -
I found that when I power the micro from 2 batteries I get the following error:
T: 23.21 H: 50 send: 104-104-0-0 s=1,c=1,t=0,pt=7,l=5,st=fail:23.2 send: 104-104-0-0 s=2,c=1,t=1,pt=2,l=2,st=fail:50This does not happen when I power it from the FTDI programmer.
Does anybody have any ideas?
The batteries have a voltage of 3.25VI did not have this issues with my arduino nano sensors. and i did use the same radio modules.
When I check the modules they seem to be real nrf24l01+ modules:
STATUS = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0 RX_ADDR_P0-1 x00 = 0xe7e7e7e7e7 0xf0f0f0f0d2 RX_ADDR_P2-5 x00 = 0xc3 0xc4 0xc5 0xc6 TX_ADDR = 0xe7e7e7e7e7 RX_PW_P0-6 x00 = 0x00 0x20 0x00 0x00 0x00 0x00 EN_AA = 0x3f EN_RXADDR x00 = 0x03 RF_CH = 0x4c RF_SETUP x00 = 0x07 CONFIG = 0x0f DYNPD/FEATURE x00 = 0x00 0x00 Data Rate = 1MBPS Model = nRF24L01+ CRC Length = 16 bits PA Power = PA_HIGH -
I have a batch of 5 sensebender and actually I build 3 and one of them doesn't work properly. Lot of st:fail when I put my finger on the board it works better so I try to make all solder one more time but it's not ok. I try with few radios and same radios work well on the others sensbender.
Any idea or way to exchange with Itead ? -
no, message are not recieve. I find someting :
When I touch the NRF24 antenna (just a little it sifficient), it works. fine.
Strange, same radio on other sensebender doesn't need this and other radio on this sensebender need to bo "touch".
I try with 10uF additionnal on NRF but no change ... -
@Fabien it seems that you have the same problem as me. I ordered a new set of radio modules to test if it is the fault of the radios. I will give feedback here about my progress.
I aleady tried to add capacitors on the radio module but this did not help.
There is also no difference if I power the micro from the FTDI or the battery connector. -
Here are some quite nice repair guides
http://www.circuitrework.com/guides/guides.shtmlMore specifically
http://www.circuitrework.com/guides/5-1.shtml
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