Sensor Hub MCU, STM32F334R, of Clover.
With a new circuit design, this project has been built from the ground.
A couple of these MCU embedded circuits are attached on Clover, one on the front and the other on the rear and serve as follows.
- Read hall effect Wheel Speed Sensor(”WSS”)
- Process PWM pulse generated from two WSSs in form of RPM(Revolution Per Minute.).
- Check for the duty ratio of each wheel if they are out of a predetermined range, implying the measurement is executed abnormally.
- Send two pairs, one pair for the left wheel and the other for the right, of a measured RPM value and its range check result to Infineon TriCore275 VCU through a CAN2.0B bus.
- Read Shock Absorber Contraction.
- Process voltage signal - analog signal ranging from 0 to 5V - through ADC.
- 2 linear potentiometers per wheel, summing to 4 per circuit.
- Send those 4 values to an Infineon Tricore275 Datalogger through a CAN2.0B bus.
- Conversion from the saturation of the linear potentiometers to the actual movement of wheels shall be processed externally during post-race analysis.
- I2C Expansion Ready.
- Though we do not have any I2C peripherals in Clover yet, the circuit has port enabled for an I2C device.
- Wheel Speed Sensor
Vendor: ZF(aka Cherry)
Code: GS101205
Datasheet:
- Linear Potentiometer
Miran KPM16-SL-J
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Terry Yoon - 윤성배
Team of Electric Control, Race 29th.
🗃️ blog.terrysyoon.com
STM32CubeIDE: V1.10.0
STM32F334R FW: STM32Cube FW_F3 V1.11.3
Windows 10 PC
Readme V1.0
Jan 9th, 2023
@Terry Yoon