Eval¶

• Big LEDs to test outputs / Backlight-PWM
• Amplified Buzzer to test buzzer output directly on MCU
• PWM output to test buzzers; 3V; normal and amplified
• Test for CANBus-cables;
  • MCU with 4 inputs
  • 4 outputs to control which line to be tested to detect shortcuts
  • 4 outputs for LEDs to indicate errornous wire
  • How detect shortcuts
  • Button to reset
• Durchgangsprüfer ( buzzer-out / Buzzer-in )
  • Do i really need this? Dont want to setup an multimeter
  • Does not cost much
  • The signal is already there. It might be usefull to inspect the board

Buchsen¶

• GND
• Durchgang
• PWM out
• PWM in to buzzer
• LED/BL in to big LED

• 2xJST-4; Kabeltest

Stiftleiste

• GND
• 3V
• 5V
• LED in 1
• LED in 2
• LED in 3
• LED in 4

• 2 Buzzers
• 1 Big LED
• Heardbeat
• User
• 1 Buzzer reset test
• 4 LEDs "open connection"

MCU Pins¶

• 4 GPIO out cable-test
• 4 GPIO Input test
• 4 GPIO LEDs
• 1 LED "Running" amber
• 1 LED "Good" green
• 1 LED "Failed" red
• 1 LED "Not 1:1" orange
• PWM buzzer
• Button start testing
• 2 LEDs HB, User

20 Pins; STM32G030C8T6 Cheap and boring LQFP48;

2 Uart
2 I2C
2 Pow