Personal project / Electronics / Embedded Systems
Precision Temperature Acquisition & CAN Sensor Platform
A multi-channel thermistor acquisition concept focused on analogue integrity, calibrated conversion and dependable CAN output.
- Work type
- Personal project
- Status
- Engineering concept / prototype
- Period
- Undisclosed
- Scope
- Electronics / Embedded Systems
01
Context
Useful temperature data depends on the whole measurement chain: excitation, analogue range, ADC behaviour, component tolerance, conversion method, sampling and communications.
02
Engineering problem
Build a repeatable path from thermistor resistance through ADC measurement and calibrated temperature conversion to networked CAN data.
03
My responsibility
- Measurement-chain architecture
- ADC and thermistor interface
- Conversion and calibration strategy
- CAN message and validation approach
04
System architecture
01ThermistorsMulti-channel input
02Analogue front endExcite · protect · scale
03ADCSample
04ESP32-S3Convert · calibrate
05CANPublish · validate
05
Engineering approach
- Budgeted error across the full analogue chain
- Used explicit LUT/calibration handling
- Decoupled sampling from CAN publication
- Defined comparison measurements for validation
06
Implementation
- ESP32-S3 control platform
- Multi-channel ADC acquisition
- Thermistor LUT/calibration
- CAN output
07
Validation
- Known-resistance input checks
- Reference-temperature comparison
- Sampling repeatability
- CAN payload and update-rate verification
08
Outcome
- A defined precision measurement architecture
- Traceable conversion from sensor input to network signal
- A platform suitable for continued prototype validation
09
Technologies / methods
10