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 motor control and power electronics
STM32 Cricket Bowling Machine Controller
Dual-motor launch-wheel control on STM32F103, from BLDC and converter modelling to the PCB.
Overview
A complete controller for a bowling machine. STM32F103 firmware runs two independent PID loops, reads both encoders with interrupts, takes speed, swing and current through the ADC and drives two PWM power stages. Simulink models cover BLDC commutation and the converters, and EasyEDA holds the schematic and PCB layouts.
The challenge
Ball speed and swing depend on two wheels holding different speeds under load. Each motor must be corrected independently, and the power stage must be designed and reviewed before the first powered test.
Our approach
Key capabilities
- Two independent PID loops with duty-cycle limits
- Interrupt-driven encoder reading and RPM calculation
- ADC channels for speed, swing and current
- Simulink models of BLDC commutation, buck and buck-boost converters
- Schematic and two PCB layouts in EasyEDA
Inside the project
Outcomes
- Firmware, simulation and hardware design delivered as one package
- Dual-motor power stage and buck-boost converter boards designed in 3D
Technology
Try it
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