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
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
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
General Purpose Thick Film Standard Power
and High-Power Chip Resistor
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film
Features:
- RMCF – standard power ratings
- RMCP – high power ratings
- Nickel barrier terminations standard
- Power derating from 100% at 70ºC to zero at +155ºC
- RoHS compliant, REACH compliant, and halogen free
- AEC-Q200 compliant
Learn how to use AI Auto Layout on this ESP32 Espresso Smart Scale! In one click you’ll see AI Auto Layout perform magic. Pay close attention to how we recommend creating rulesets, zones, and fanouts. By copying the setup in this example on your own project, you’ll have a fully routed board in no time!
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor
Qty 1
Arrow
$3.85–$6.43
Digi-Key
$6.29–$10.05
LCSC
$7.43–$8.36
Mouser
$11.10
TME
$1.57
Verical
$2.88–$3.94
Controls
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