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Requirements:
Control 5 brushed DC motors.
Control 3 servos.
Collect Data from 3 quaderature encoders.
Collect Data from 6 proximity sensors.
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Block Diagram:
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Action Items:
Find GPIO Expander
Find Level ShifterGPIO Expander(PCAL9538APWJ)
Level Shifter(Encoders/Servos - NXB0108PWJ)
I2C Level Shifter
Mosfet(BSS138WH6327XTSA1)
Component | Current | Voltage |
|---|---|---|
Proximity Sensor | 30mA | 5V |
temperature-humidity sensor | 2.5mA | 5V |
Analog Soil Moisture Sensor | 35mA | 5V |
Infrared CO2 Sensor | 150mA peak/ 60mA average | 5V |
Servo | 800mA | 5V |
Level Shifter | 100mA | 5V |
MCU | 240mA | 3V3 |
quadrature encoder | 10mA | 5V |