Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
Alright, we'll create the schematic step-by-step. Here are the steps to follow in Flux for setting up this schematic:
Step 1: Add Components
Microcontroller: ESP32-WROOM-32
SD Card Module: MicroSD Card Module
DAC: PCM5102
Amplifier: TPA3116D2
Push-buttons: 5 Standard Push-buttons
Pull-down Resistors: 5 Resistors (10kΩ)
Speaker: 1 Speaker
Power Supplies: 3.3V and 12V
Step 2: Place Components
Place the ESP32 centrally to connect all other components.
Arrange the buttons on one side for easy connection to GPIO pins.
Place the SD card module near the ESP32 for the SPI connection.
Place the DAC near the ESP32 for I2S connections.
Place the amplifier near the DAC for easy connection.
Place the speaker output terminals near the amplifier.
Step 3: Make ConnectionsButton Connections:
Connect Button1:1 to ESP32: GPIO0, Button1:2 to GND.
Connect Button2:1 to ESP32: GPIO2, Button2:2 to GND.
Connect Button3:1 to ESP32: GPIO4, Button3:2 to GND.
Connect Button4:1 to ESP32: GPIO5, Button4:2 to GND.
Connect Button5:1 to ESP32: GPIO6, Button5:2 to GND.
Connect one end of each pull-down resistor to Button1:1, Button2:1, Button3:1, Button4:1, Button5:1.
Connect the other end of each resistor to GND.
SD Card Module Connections:
Connect SD_MISO to ESP32: GPIO19.
Connect SD_MOSI to ESP32: GPIO23.
Connect SD_SCLK to ESP32: GPIO18.
Connect SD_CS to ESP32: GPIO5.
Connect VCC to 3.3V.
Connect GND to GND.
DAC Connections (PCM5102):
Connect DAC_SDOUT to ESP32: GPIO25 $($I2S Data Out$)$.
Connect DAC_LRCK to ESP32: GPIO26 $($I2S Left/Right Clock$)$.
Connect DAC_BCK to ESP32: GPIO27 $($I2S Bit Clock$)$.
Connect VDD to 3.3V.
Connect GND to GND.
Amplifier Connections (TPA3116D2):
Connect Amplifier Input+ to DAC Output L+.
Connect Amplifier Input- to DAC Output L-.
Connect Amplifier VDD to 12V.
Connect GND to GND.
Connect Amplifier Output $($L+ and L-$)$ to the speaker terminals.
Step 4: Validate and Export
Validate the connections with the ERC $($Electrical Rule Check$)$ in Flux.
Make sure all components are properly connected and powered.
Export the schematic for PCB design if required.
Once you have all these components placed and connected, you can start routing the connections as per the layout. If you’d like, I can provide a step-by-step mermaid diagram for an easy visual representation. Or do you want me to set up the project directly in Flux?
Since I can't interact with the Flux interface directly, I'll guide you on how to set up the project within Flux. Follow these steps to create your schematic in Flux:
Step 1: Create a New Project
Open Flux and create a new project.
Give your project a meaningful name (e.g., "Audio Player with 5 Buttons").