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
To connect the RP2040 microcontroller (U1) to the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), you'll need to connect the SPI interface, the display control signals, and the power supply. Here's a suggested connection list:
SPI interface:
U1.GPIO12 (SPI0_MISO) ⟶ U2.MISO
U1.GPIO11 (SPI0_SCK) ⟶ U2.SCK
U1.GPIO10 (SPI0_MOSI) ⟶ U2.MOSI
Display control signals:
U1.GPIO9 ⟶ U2.D/C
U1.GPIO8 ⟶ U2.RESET
U1.GPIO7 ⟶ U2.CS
Touchscreen SPI interface (optional, if you want to use the touchscreen feature):
U1.GPIO6 ⟶ U2.T_CS
U1.GPIO11 (SPI0_SCK) ⟶ U2.T_CLK
U1.GPIO10 (SPI0_MOSI) ⟶ U2.T_DIN
U1.GPIO12 (SPI0_MISO) ⟶ U2.T_DO
U1.GPIO5 ⟶ U2.T_IRQ
Power supply:
Connect a 3.3V power source to U2.VCC and U1.IOVDD.
Connect GND to both U1.GND and U2.GND.
For the LED backlight, connect U2.LED to a 3.3V power source through a current-limiting resistor (typically 100 Ohm to 150 Ohm).
Note: This connection list assumes you're using SPI0 of the RP2040. You can choose other GPIO pins for the display control signals and touchscreen SPI interface if needed, but make sure to update your software accordingly.
To connect the RP2040 microcontroller (U1) to the Adafruit SPI TFT LCD Display Touch ILI9341 (U2), follow these connections:
Connect U1:GPIO18 (MOSI) to U2:MOSI.
Connect U1:GPIO19 (SCK) to U2:SCK.
Connect U1:GPIO16 to U2:CS.
Connect U1:GPIO17 to U2:D/C.
Connect U1:GPIO20 to U2:RESET.
Connect U1:GPIO21 to U2:T_CS (Touch CS).
Connect U1:GPIO22 to U2:T_CLK (Touch CLK).
Connect U1:GPIO23 to U2:T_DIN (Touch DIN).
Connect U1:GPIO24 to U2:T_DO (Touch DO).
Connect U1:GPIO25 to U2:T_IRQ (Touch IRQ).
You can connect the VCC and GND pins of the display to the appropriate power supply and ground connections on your board. Also, make sure to connect the LED pin of the display to a suitable current-limiting resistor and then to the power supply.
Please let me know if you need help with any other connections or have any questions.
No, GPIO16 on U1 (RP2040) is not pulled down in the current circuit. Instead, it is connected to a 500Ω resistor (R1) which is then connected to the DVDD power rail. This configuration is effectively pulling GPIO16 up, not down.
I cannot determine if GPIO16 on U1 (RP2040) is correctly pulled down because there is no schematic or netlist information provided for me to analyze. Please provide more information or upload the schematic so I can check the connection.
I cannot determine that without seeing your schematic. Please upload an image of your schematic or provide relevant information about the connections to GPIO16.
I cannot verify the connections in your schematic or PCB layout without more information or a visual representation. Please provide more details or a screenshot of your schematic, and I'll be happy to help you check if GPIO16 is correctly pulled down.
1y
how should I connect this pt100 sensor to u3 for a 3 wire measurement?
To connect the Adafruit ILI9341 SPI TFT LCD Display (U2) to the RP2040 microcontroller (U1), you can use the following connections:
Power and Ground:
U2 VCC -> U1 IOVDD
U2 GND -> U1 GND
SPI Interface:
U2 SCK -> U1 GPIO18 (SPI0_SCK)
U2 MOSI -> U1 GPIO19 (SPI0_MOSI)
U2 MISO -> U1 GPIO16 (SPI0_MISO)
U2 CS -> U1 GPIO17 (SPI0_CS)
ILI9341 Control Signals:
U2 D/C -> U1 GPIO (e.g., GPIO20)
U2 RESET -> U1 GPIO (e.g., GPIO21)
Touchscreen SPI Interface (optional, if using the touchscreen):
U2 T_IRQ -> U1 GPIO (e.g., GPIO22)
U2 T_DO -> U1 GPIO16 (SPI0_MISO)
U2 T_DIN -> U1 GPIO19 (SPI0_MOSI)
U2 T_CS -> U1 GPIO (e.g., GPIO23)
U2 T_CLK -> U1 GPIO18 (SPI0_SCK)
SD Card SPI Interface (optional, if using the SD card slot):
U2 SD_CS -> U1 GPIO (e.g., GPIO24)
U2 SD_MOSI -> U1 GPIO19 (SPI0_MOSI)
U2 SD_MISO -> U1 GPIO16 (SPI0_MISO)
U2 SD_SCK -> U1 GPIO18 (SPI0_SCK)
Note that you can use different GPIO pins for the control signals (D/C, RESET, T_IRQ, T_CS, and SD_CS) and adjust them accordingly in your software configuration.
To connect U3 (Adafruit ILI9341 Display) and U4 (RP2040 Microcontroller), you can follow this suggested pin mapping:
VCC (U3) - IOVDD (U4): Connect the power supply.
GND (U3) - GND (U4): Connect the ground.
CS (U3) - GPIOx (U4): Choose an available GPIO pin for Chip Select.
RESET (U3) - GPIOy (U4): Choose another available GPIO pin for Reset.
D/C (U3) - GPIOz (U4): Choose another available GPIO pin for Data/Command.
MOSI (U3) - GPIO10 (U4): Connect the SPI MOSI.
SCK (U3) - GPIO11 (U4): Connect the SPI SCK.
MISO (U3) - GPIO12 (U4): Connect the SPI MISO.
LED (U3) - GPIOa (U4): Choose another available GPIO pin for controlling the display backlight.
For the touch controller, connect these pins:
T_IRQ (U3) - GPIOb (U4): Choose another available GPIO for the touch interrupt.
T_CS (U3) - GPIOc (U4): Choose another available GPIO for the touch controller's Chip Select.
T_CLK (U3) - GPIO11 (U4): Connect to the same SPI SCK as the display.
T_DIN (U3) - GPIO10 (U4): Connect to the same SPI MOSI as the display.
T_DO (U3) - GPIO12 (U4): Connect to the same SPI MISO as the display.
Note: Replace x, y, z, a, b, and c with available GPIO pins on U4 that are not already in use. Make sure to update the firmware to use the correct GPIO pins for each function.
1y
can you tell me how to connect the sd card interface on u2 to u1
To connect the Adafruit ILI9341 SPI TFT LCD Display (U2) to the RP2040 microcontroller (U1), you'll need to decide which GPIO pins on the RP2040 will be used for the SPI interface, as well as control signals such as D/C, RESET, and CS. Here's an example of how you can connect the two components:
Connect the SPI interface:
U1:GPIO2 (MOSI) -> U2:MOSI
U1:GPIO3 (MISO) -> U2:MISO
U1:GPIO4 (SCK) -> U2:SCK
Connect the control signals:
U1:GPIO5 -> U2:D/C
U1:GPIO6 -> U2:RESET
U1:GPIO7 -> U2:CS
Connect the power supply:
U1:IOVDD -> U2:VCC
U1:GND -> U2:GND
Connect the display backlight:
U1:GPIO8 -> U2:LED
If you plan to use the touch feature, you'll also need to connect the touch controller SPI interface and the T_IRQ pin:
U1:GPIO9 (T_MOSI) -> U2:T_DIN
U1:GPIO10 (T_MISO) -> U2:T_DO
U1:GPIO11 (T_SCK) -> U2:T_CLK
U1:GPIO12 -> U2:T_CS
U1:GPIO13 -> U2:T_IRQ
If you plan to use the SD card feature, you'll also need to connect the SD card SPI interface:
U1:GPIO14 (SD_MOSI) -> U2:SD_MOSI
U1:GPIO15 (SD_MISO) -> U2:SD_MISO
U1:GPIO16 (SD_SCK) -> U2:SD_SCK
U1:GPIO17 -> U2:SD_CS
Make sure to update the netlist with the new connections.
To connect the Adafruit ILI9341 TFT LCD Display (U2) to the RP2040 microcontroller (U1), follow these connections:
U2.VCC to U1.IOVDD
U2.GND to U1.GND
U2.SCK to U1.GPIO18 (SPI0_SCK)
U2.MOSI to U1.GPIO19 (SPI0_MOSI)
U2.MISO to U1.GPIO16 (SPI0_MISO)
U2.CS to U1.GPIO17 (SPI0_SS)
U2.D/C to U1.GPIO20 (or any available GPIO)
U2.RESET to U1.GPIO21 (or any available GPIO)
U2.LED to a current-limiting resistor, then to U1.IOVDD (for backlight control)
U2.SD_CS, U2.SD_MOSI, U2.SD_MISO, and U2.SD_SCK can be connected to other GPIOs or left unconnected if the SD card functionality is not needed.
U2.T_CS, U2.T_DIN, U2.T_DO, U2.T_CLK, and U2.T_IRQ can be connected to available GPIOs if the touch functionality is needed.
Please note that these connections are based on using SPI0 on the RP2040. You can use other SPI peripherals or GPIO pins if needed, just make sure to update the connections accordingly and configure the microcontroller in your firmware.
1y
how would you connect the sd card interface on u2 to u1
To connect the SD card interface on U2 (Adafruit ILI9341) to U1 (RP2040), you can use the following connections:
U2_SD_CS -> U1_GPIO_PIN (Choose an available GPIO pin on U1 for SD_CS, e.g., U1_GPIO10)
U2_SD_MOSI -> U1_GPIO15 (SPI0_TX, SPI MOSI)
U2_SD_MISO -> U1_GPIO14 (SPI0_RX, SPI MISO)
U2_SD_SCK -> U1_GPIO12 (SPI0_SCK, SPI Clock)
Here, I've selected U1_GPIO10 as an example for the SD card chip select (SD_CS) connection. You can choose any available GPIO pin on U1 that meets your design requirements. Make sure to configure the chosen GPIO pin as an output and set it up for SPI communication in your firmware.
To connect the RP2040 microcontroller (U1) to the Adafruit ILI9341 SPI TFT LCD Display Touch (U2), you need to make the following connections:
Connect U1:GPIO18 (MOSI) to U2:MOSI
Connect U1:GPIO19 (MISO) to U2:MISO
Connect U1:GPIO20 (SCK) to U2:SCK
Connect U1:GPIO21 (SPI0 CS) to U2:CS
For the display control signals:
Connect U1:GPIO22 to U2:D/C
Connect U1:GPIO23 to U2:RESET
Connect U1:GPIO24 to U2:LED
For the touch controller:
Connect U1:GPIO25 to U2:T_CS
Connect U1:GPIO26/ADC0 to U2:T_IRQ
Connect U1:GPIO27/ADC1 to U2:T_DO
Connect U1:GPIO28/ADC2 to U2:T_DIN
Connect U1:GPIO29/ADC3 to U2:T_CLK
For power:
Connect U1:3.3V to U2:VCC
Connect U1:GND to U2:GND
For the SD card (optional):
Connect U1:GPIO12 to U2:SD_CS
Connect U1:GPIO8 (SPI1 MOSI) to U2:SD_MOSI
Connect U1:GPIO9 (SPI1 MISO) to U2:SD_MISO
Connect U1:GPIO10 (SPI1 SCK) to U2:SD_SCK
After making these connections, your netlist should look like the following:
Net 0 connects U1:GPIO18, U2:MOSI
Net 1 connects U1:GPIO19, U2:MISO
Net 2 connects U1:GPIO20, U2:SCK
Net 3 connects U1:GPIO21, U2:CS
Net 4 connects U1:GPIO22, U2:D/C
Net 5 connects U1:GPIO23, U2:RESET
Net 6 connects U1:GPIO24, U2:LED
Net 7 connects U1:GPIO25, U2:T_CS
Net 8 connects U1:GPIO26/ADC0, U2:T_IRQ
Net 9 connects U1:GPIO27/ADC1, U2:T_DO
Net 10 connects U1:GPIO28/ADC2, U2:T_DIN
Net 11 connects U1:GPIO29/ADC3, U2:T_CLK
Net 12 connects U1:3.3V, U2:VCC
Net 13 connects U1:GND, U2:GND
Net 14 connects U1:GPIO12, U2:SD_CS
Net 15 connects U1:GPIO8, U2:SD_MOSI
Net 16 connects U1:GPIO9, U2:SD_MISO
Net 17 connects U1:GPIO10, U2:SD_SCK
1y
how could i connect the sd card interface on u2 to u1
Sure, I can suggest a connection between the RP2040 (U1) and the Adafruit SPI TFT LCD Display Touch ILI9341 (U2). Here's a proposed connection:
U1:GPIO18 (MOSI) to U2:MOSI
U1:GPIO19 (SCK) to U2:SCK
U1:GPIO20 (CS) to U2:CS
U1:GPIO21 (D/C) to U2:D/C
U1:GPIO22 (RESET) to U2:RESET
U1:GPIO23 (T_CS) to U2:T_CS
U1:GPIO24 (MISO) to U2:MISO
U1:GPIO25 (SD_CS) to U2:SD_CS
U1:GPIO27/ADC1 (T_CLK) to U2:T_CLK
U1:GPIO28/ADC2 (T_DO) to U2:T_DO
U1:GPIO29/ADC3 (T_DIN) to U2:T_DIN
Please note that you might need to adjust the pin assignments based on your specific application requirements. If necessary, you can use any available GPIO pin for the control signals (CS, D/C, RESET, T_CS, SD_CS, T_CLK, T_DO, and T_DIN).
Certainly! To connect an SD card to the RP2040 (U1), you can use the following connections:
U1:GPIO18 (MOSI) to SD_CARD:MOSI
U1:GPIO19 (SCK) to SD_CARD:SCK
U1:GPIO26 (SD_CS) to SD_CARD:CS
U1:GPIO24 (MISO) to SD_CARD:MISO
For power and ground connections, connect the following:
U1:IOVDD to SD_CARD:VCC
U1:GND to SD_CARD:GND
Please note that I changed the GPIO25 (previously assigned to SD_CS) to GPIO26 for the SD card's CS pin. This is because GPIO25 is being used for the display's SD_CS pin. Make sure to update the code accordingly.
1y
ok, i want to use u3 as a second display for u1. can you wire that for me pleas...
Hey, I'm copilot! I can help you with all kinds of stuff in your project. Reach me at any time by tagging me on comments or in the chat with my handle, @copilot.
kofron
copilot
U1.GPIO12
(SPI0_MISO) ⟶U2.MISO
U1.GPIO11
(SPI0_SCK) ⟶U2.SCK
U1.GPIO10
(SPI0_MOSI) ⟶U2.MOSI
U1.GPIO9
⟶U2.D/C
U1.GPIO8
⟶U2.RESET
U1.GPIO7
⟶U2.CS
U1.GPIO6
⟶U2.T_CS
U1.GPIO11
(SPI0_SCK) ⟶U2.T_CLK
U1.GPIO10
(SPI0_MOSI) ⟶U2.T_DIN
U1.GPIO12
(SPI0_MISO) ⟶U2.T_DO
U1.GPIO5
⟶U2.T_IRQ
U2.VCC
andU1.IOVDD
.U1.GND
andU2.GND
.U2.LED
to a 3.3V power source through a current-limiting resistor (typically 100 Ohm to 150 Ohm).