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how to connect U1 to U2 and J1
calamity1504

calamity1504

@copilot how to connect U1 to U2 and J1
3y

copilot

The connection between U1 (MCP23017-E/SP), U2 (COM-09032), and J1 (USB TYPE C) would depend on the functional requirements of your design. Here's a general way to connect these components:
  1. Power Supply Connection:
    • MCP23017-E/SP (U1) has two power supply pins: VDD and VSS. You would typically connect VDD to a positive supply voltage (like 3.3V or 5V) and VSS to the ground.
    • COM-09032 (U2) has two power pins: V+ and V-. Connect V+ to the same positive supply voltage as U1 and V- to the ground.
    • USB TYPE C (J1) has a VBUS pin which can provide a 5V supply. This can be used to power U1 and U2. Connect VBUS to VDD of U1 and V+ of U2. Connect the GND pin of J1 to the VSS of U1 and V- of U2.
  2. Data Connection:
    • MCP23017-E/SP (U1) uses I2C for communication, which requires SDA (data line) and SCK (clock line).
    • COM-09032 (U2) has various output pins (H, H+, H-, V, V+, V-) that can be connected to the I/O pins of U1 (like GPB0-GPB7 or GPA0-GPA7) based on the requirements.
    • USB TYPE C (J1) has D+ and D- pins for data, which need to be interfaced with a USB to I2C converter circuit or a microcontroller that has USB and I2C capabilities.
Please note that this is a general connection scheme, the exact way to connect these components will depend on the specific requirements of your project. Also, ensure to use appropriate pull-up resistors for the I2C lines and take necessary precautions for USB data line protection.
3y
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hoe to connect J1 to U1
calamity1504

calamity1504

@copilot hoe to connect J1 to U1
3y

copilot

To connect the USB Type C connector (J1) to the MCP23017-E/SP integrated circuit (U1), you'll typically want to connect the data lines (D+ and D-) to the SDA and SCK pins, respectively. The VBUS line from J1 should be connected to the VDD line of U1, and one of the GND pins should be connected to the VSS pin of U1.
Here is the connection map:
  • J1:D+ to U1:SDA.
  • J1:D- to U1:SCK.
  • J1:VBUS to U1:VDD.
  • J1:GND to U1:VSS.
Please note that in some cases, you may need to use pull-up resistors for the SDA and SCK lines. Additionally, the actual connection might vary depending on the details of the USB communication protocol your design uses. Always check the datasheet of the components to ensure correct connections.
3y
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