Technical section 02
Networking
Scentinel uses the particle.io platform to transmit data from the device to the cloud.
Compute and connectivity
Particle B524 SoM
The B524 SoM combines a Nordic nRF52840 microcontroller with a Quectel EG91-E LTE Cat 1 modem and an embedded Particle EtherSIM. It connects to the main board through an M.2 socket, allowing it to read sensors and publish data to the Particle cloud.
B524 datasheet →Scentinel deviceSamples sensors
Cellular networkTransmits data
Particle cloudReceives the device
publication
WebhookForwards each published event to
database
SQLite databaseStores Scentinel data, ML
model outputs, and user votes
User interfaceQueries APIs and renders the
dashboard
Machine learningUses stored gas
fingerprints and votes for model training