Industrial Pulse
Industrial IoT condition monitoring
From sensor to screen: equipment telemetry over MQTT, stored in PostgreSQL and monitored live on a bilingual dashboard.
Embedded instrumentation
STM32 E-Scooter Instrumentation
Encoder, ADC and PWM measurement chain on STM32F1 with PI/PID control and UART diagnostics.
Overview
Measurement and control firmware for an e-scooter drive. It reads the quadrature encoder with interrupts, samples setpoint, current and voltage through the ADC, closes a PI/PID loop to a PWM motor command and streams diagnostics over UART. An Arduino version is included for comparison.
The challenge
Speed, current and voltage must be measured accurately enough to close a control loop and diagnose faults, using only the resources of an STM32F1.
Our approach
Key capabilities
- Interrupt-driven quadrature encoder reading
- Speed from pulse count and timing
- ADC setpoint, current and voltage sampling
- PI/PID loop to PWM motor command
- UART diagnostics and an Arduino reference build
Inside the project
Outcomes
- Complete sensing-to-actuation chain on one microcontroller
- Live diagnostics stream for tuning and fault finding
Technology
Try it
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