Adding Recharge Port for Battery
add the LSM6DS3 low-power accelerometer from manufacturers like Bosch Sensortec and then link this to a power switch to the cellular chip, only allow connection to cellular power draw if item is moved to activate the link this will also require a small processeoto manage the timer, that closes the cellular chip for 12 hours
Thought for 1 min 2 sec
To implement a motion-activated power-gating circuit for your cellular module:
- Add the Bosch Sensortec LSM6DS3 accelerometer for motion detection.
- Add a low-power microcontroller to monitor the LSM6DS3’s interrupt output and run a 12 h timer.
- Add a P-channel MOSFET high-side switch to gate the cellular module’s power rail.
- Include pull-ups on the accelerometer interrupt pin, reverse-polarity protection on the power path, and a gate-drive resistor on the MOSFET (based on Flux knowledge-base guidance for gate-drive circuits).
Shall I add these components and wire:
- INT1 of LSM6DS3 → MCU interrupt pin (with pull-up resistor)
- MCU GPIO → MOSFET gate (through resistor)
- MOSFET source to battery, drain to cellular power net
- MCU power from 3.3 V rail, with decoupling cap
Let me know, and I’ll place and wire them.
Select MCU
Select MOSFET
Find pull-up resistor
Add power protection diode
Decide timer source
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