You have a raspberry pi connected to all the sensors and a code running to trigger if the sensors are triggered. Each sensor and keypad would run to a different input on the pi. They should al be able to be powered with a single cell lipo. Is that what you are asking?
Answer: Information
Explanation: Information flows consist of data related to demand, shipments, orders, returns, and schedules, as well as changes in any of these data.
Money market?? i think anyway.
Answer:
kinda look it up!!!
Explanation:
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