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3
questions
-4
votes
1
answer
166
views
In this circuit, the light intensity sensor (LDR) only senses 3_2 cm. How can I improve the sensitivity of this sensor to reach 1m?
In this circuit, the light intensity sensor (LDR) only senses 3_2 cm. How can I improve the sensitivity of this sensor to reach 1m?
https://ibb.co/c3X1NRS
-1
votes
1
answer
270
views
Reliable sensing method for device inside a parcel to detect when/if the parcel is opened?
I'm wracking my brain for reliable ways for an electronic device to detect when/if the parcel it is sealed inside is opened.
The device will be sealed inside the package and activated via Bluetooth ...
- 483
1
vote
2
answers
154
views
Protecting clock from hacking
We are working with an Raspberry Pi project where the time precision is very important.
Money could be potentially lost if the clock is compromised.
How would you build a tamper-safe clock module?
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