I need to develop a ring (actually, can be also a 2-finger ring), to measure light changes and accelerations, and then send the accelerometer data info to a computer in order to use that in LabView. The process would be something like:
1- When the LDR detects that the light is low, enable the accelerometer data adquisition, and send that data to the computer using XBee.
2- When the LDR detects that the light is high again, turn off the accelerometer.
My questions are related with the power compsumition of all the systems. How can I provide enough power for all the circuits, a 3V button cell would be enough? How much time do you think this system can run without changing the battery?
2- When the LDR detects that the light is high again, turn off the accelerometer.
Why? Did you mean stop sending data, instead?
My questions are related with the power compsumition of all the systems. How can I provide enough power for all the circuits, a 3V button cell would be enough? How much time do you think this system can run without changing the battery?
Less than 5 minutes. The XBee is the biggest power consumer in the mix. It will deplete your tiny battery in nothing flat.
PaulS:
Less than 5 minutes. The XBee is the biggest power consumer in the mix. It will deplete your tiny battery in nothing flat.
Wow, that's horrible Any ideas how can I improve that? maybe it's a good idea to have a phone battery in the top of the hand? Or maybe are other wireless transmitting devices with less power compsumition?
PaulS:
Some clue as to what you are really trying to accomplish might be useful.
I'll try to explain: In one industrial process, one manual operation is joining together two pieces. In the moment of the clipping, there are a small acceleration of the fingers. I want to detect that acceleration and send it to the computer in order to detect if the clipping has been correctly done or not. That's why I need to send the data wiressly, and has to be as light and low power as possible :~
Any ideas how can I improve that? maybe it's a good idea to have a phone battery in the top of the hand? Or maybe are other wireless transmitting devices with less power compsumition?