Nova Kit Battery Power and storage question
trustnoone 2014-03-31 00:51:28 4200 Views3 Replies Hi guys, so I saw the nova and it looks really good, from what I understand I can essentially use it as an arduino with an accelerometer right?
The thing is I want to obtain accelerometer data sampled at 10 times per second, and I wanted this to go on for about 3 to 7 days. I was wondering how I could go about checking whether the Nova battery would be able to stay on that long? For example is there a data sheet I can check out for the accelerometer to check battery usage?
I was also hoping to save this data at about twice per minute so I guess that would use about 4 bytes per int of accelerometer data which would mean 8 bytes per minute and say over three days I would get about 35kbytes, from what I understand the ATmega will only hold 32kbytes of ISP flash, so would that mean I won't be able to get all my data to fit?
Thanks heaps for your response.
The thing is I want to obtain accelerometer data sampled at 10 times per second, and I wanted this to go on for about 3 to 7 days. I was wondering how I could go about checking whether the Nova battery would be able to stay on that long? For example is there a data sheet I can check out for the accelerometer to check battery usage?
I was also hoping to save this data at about twice per minute so I guess that would use about 4 bytes per int of accelerometer data which would mean 8 bytes per minute and say over three days I would get about 35kbytes, from what I understand the ATmega will only hold 32kbytes of ISP flash, so would that mean I won't be able to get all my data to fit?
Thanks heaps for your response.
2014-04-01 01:48:08 the Nova kit comes with a little connector board you can use to attach any other sensor.
Not sure if that is what you mean by daughter board. the wires can be used to connect any of our sensors with our 3 wire standard. Jose
Not sure if that is what you mean by daughter board. the wires can be used to connect any of our sensors with our 3 wire standard.
Jose 2014-04-01 00:35:54 [quote="Jose"]
Welcome Trustnoone,
Yeah its using ADXL345 accelerometer, you can find the datasheet here:
https://www.dfrobot.com/index.php?route= ... uct_id=383
Your Arduino will need quite a bit of space for the sketch, so 32kbytes would be the total. For using the internal memory as a storage medium it will be drastically less than that. Most likely, unless you compress the data somehow, you will need to use external sd card or something like that.
As for battery, I can't really tell. Depends a lot on how you program the sketch and how you set your ATmega. Perhaps using the sleep mode will help.
I am still trying to figure out the purpose, so not sure if sleep will be an option or not. Perhaps using some low power wireless method to update the data will be more useful than storing it.
[/quote]
Thanks heaps mate, apologies, unfortunately I left it quite open ended as I'm a little unsure what specifically I'm doing with it, I did find the data sheet for the ATmega and with the help of the ADXL345 data sheet it definitely helped a lot in getting approximate power consumption.
Yeah definitely, I'm thinking of making a daughter board possibly to connect similar to the shield and then use that to connect an extra storage.
Thanks for your reply, much appreciated!! trustnoone
Welcome Trustnoone,
Yeah its using ADXL345 accelerometer, you can find the datasheet here:
https://www.dfrobot.com/index.php?route= ... uct_id=383
Your Arduino will need quite a bit of space for the sketch, so 32kbytes would be the total. For using the internal memory as a storage medium it will be drastically less than that. Most likely, unless you compress the data somehow, you will need to use external sd card or something like that.
As for battery, I can't really tell. Depends a lot on how you program the sketch and how you set your ATmega. Perhaps using the sleep mode will help.
I am still trying to figure out the purpose, so not sure if sleep will be an option or not. Perhaps using some low power wireless method to update the data will be more useful than storing it.
[/quote]
Thanks heaps mate, apologies, unfortunately I left it quite open ended as I'm a little unsure what specifically I'm doing with it, I did find the data sheet for the ATmega and with the help of the ADXL345 data sheet it definitely helped a lot in getting approximate power consumption.
Yeah definitely, I'm thinking of making a daughter board possibly to connect similar to the shield and then use that to connect an extra storage.
Thanks for your reply, much appreciated!!
trustnoone 2014-03-31 23:00:32 Welcome Trustnoone,
Yeah its using ADXL345 accelerometer, you can find the datasheet here:
https://www.dfrobot.com/index.php?route= ... uct_id=383
Your Arduino will need quite a bit of space for the sketch, so 32kbytes would be the total. For using the internal memory as a storage medium it will be drastically less than that. Most likely, unless you compress the data somehow, you will need to use external sd card or something like that.
As for battery, I can't really tell. Depends a lot on how you program the sketch and how you set your ATmega. Perhaps using the sleep mode will help.
I am still trying to figure out the purpose, so not sure if sleep will be an option or not. Perhaps using some low power wireless method to update the data will be more useful than storing it. Jose
Yeah its using ADXL345 accelerometer, you can find the datasheet here:
https://www.dfrobot.com/index.php?route= ... uct_id=383
Your Arduino will need quite a bit of space for the sketch, so 32kbytes would be the total. For using the internal memory as a storage medium it will be drastically less than that. Most likely, unless you compress the data somehow, you will need to use external sd card or something like that.
As for battery, I can't really tell. Depends a lot on how you program the sketch and how you set your ATmega. Perhaps using the sleep mode will help.
I am still trying to figure out the purpose, so not sure if sleep will be an option or not. Perhaps using some low power wireless method to update the data will be more useful than storing it.
Jose 