I am currently designing a device that will take measurements from a load cell that is in tension. I am using a v1.0 NodeMCU device that features an HX711 load cell amplifier and is running off of battery power. In order to conserve that power, I am wanting to be able to put as many parts of the device as possible into a sleep of some level when there is not a load on the cell. Then, I would like the device to be a be able to wake up when a load is applied and it goes into use. Going into a sleep will be simple enough, if the device is getting a reading around zero for a period time, it can enter sleep. Other notable hardware involved on the device will be a real-time-clock and an accelerometer.
From what I have already tried to look up, there doesn't seem to be any good way to use the load cell to get this action. The only idea I have been able to come up with for how to activate the device without having to wake it up extremely often other than a manual switch or checks very often came from this question. It suggests using a vibration sensor like this, which is how bathroom scales put themselves to sleep.
While I think it might be possible to use a vibration sensor to wake up the device, I am not sure if the loads involved and use case will disallow me from using one. Are there any other sensors or methods that could be used to achieve goals that I have for this device?