2026-05

CAN Bus Sensor Node Network

ESP32-S3 chip-down sensor nodes on a 4-layer board — strain gauge, PT100, and analog acquisition over CAN.

canembeddedaltiumdaq

Overview

Distributed sensor node network for vehicle data acquisition. Each corner node is an ESP32-S3FH4R2 chip-down design with an ADS1220 24-bit ADC for strain gauges and PT100 RTDs, MCP3204 for general analog channels, and a CAN transceiver on a 4-layer stackup.

Architecture

DBC-first development: message layouts defined in a shared DBC, C structs generated with cantools, IDs allocated in 32-ID subsystem blocks.

Add schematic snippets, stackup details, and noise floor measurements.

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