If a device like one of these can be plugged into the JST UART port on the CrowPanel would it add support for USB HID?
https://www.amazon.com/teensy-usb/s?k=teensy+usb
Goal: Use a Teensy microcontroller to read UART0 data from an ESP32-S3 device (connected via a JST connector) and emulate a USB HID keyboard to send keystrokes to a PC.
Components Needed:
ESP32-S3: Your existing device with a UART0 JST connector.
Teensy Microcontroller: Teensy 3.x, 4.x, or LC models that support USB HID.
JST Connector and Wiring: To connect UART0 from the ESP32-S3 to the Teensy.
USB Cable: To connect the Teensy to the PC.
UART0 on ESP32-S3
UART0 Pins:
TXD0: Transmit Data Pin.
RXD0: Receive Data Pin.
GND: Ground.
VCC: Voltage Supply (usually 3.3V).
JST Connector
A JST connector on your ESP32-S3 device provides access to UART0 pins.
Pinout: Typically, a 4-pin JST connector with the following pins:
Pin 1: VCC (3.3V)
Pin 2: TXD0
Pin 3: RXD0
Pin 4: GND
Power Supply: If both devices are powered separately, do not connect VCC between them. Only connect GND, TXD0, and RXD0.
Common Ground: Ensure both devices share a common ground for reliable communication.
Wiring Steps
Connect GND:
Connect GND (Pin 4) from the ESP32-S3 JST connector to the GND pin on the Teensy.
Connect UART Lines:
ESP32-S3 TXD0 (Pin 2) to Teensy RX1 (Receive pin).
ESP32-S3 RXD0 (Pin 3) to Teensy TX1 (Transmit pin).
Note: On the Teensy, you can use Serial1 (pins vary by model).
Power Considerations:
Option 1: Power both devices separately.
ESP32-S3: Powered via its own power supply.
Teensy: Powered via USB from the PC.
Option 2: Power the ESP32S3 CrowPanel and the Teensy from a single USB power cable.
Comments
If a device like one of these can be plugged into the JST UART port on the CrowPanel would it add support for USB HID?
https://www.amazon.com/teensy-usb/s?k=teensy+usb
Goal: Use a Teensy microcontroller to read UART0 data from an ESP32-S3 device (connected via a JST connector) and emulate a USB HID keyboard to send keystrokes to a PC.
Components Needed:
ESP32-S3: Your existing device with a UART0 JST connector.
Teensy Microcontroller: Teensy 3.x, 4.x, or LC models that support USB HID.
JST Connector and Wiring: To connect UART0 from the ESP32-S3 to the Teensy.
USB Cable: To connect the Teensy to the PC.
UART0 on ESP32-S3
UART0 Pins:
TXD0: Transmit Data Pin.
RXD0: Receive Data Pin.
GND: Ground.
VCC: Voltage Supply (usually 3.3V).
JST Connector
A JST connector on your ESP32-S3 device provides access to UART0 pins.
Pinout: Typically, a 4-pin JST connector with the following pins:
Pin 1: VCC (3.3V)
Pin 2: TXD0
Pin 3: RXD0
Pin 4: GND
ESP32-S3 JST Connector to Teensy
ESP32-S3 JST Pin Description Teensy Pin
VCC (Pin 1) 3.3V Supply Teensy 3.3V Output*
TXD0 (Pin 2) UART0 TX RX Pin on Teensy
RXD0 (Pin 3) UART0 RX TX Pin on Teensy
GND (Pin 4) Ground GND on Teensy
Notes:
Power Supply: If both devices are powered separately, do not connect VCC between them. Only connect GND, TXD0, and RXD0.
Common Ground: Ensure both devices share a common ground for reliable communication.
Wiring Steps
Connect GND:
Connect GND (Pin 4) from the ESP32-S3 JST connector to the GND pin on the Teensy.
Connect UART Lines:
ESP32-S3 TXD0 (Pin 2) to Teensy RX1 (Receive pin).
ESP32-S3 RXD0 (Pin 3) to Teensy TX1 (Transmit pin).
Note: On the Teensy, you can use Serial1 (pins vary by model).
Power Considerations:
Option 1: Power both devices separately.
ESP32-S3: Powered via its own power supply.
Teensy: Powered via USB from the PC.
Option 2: Power the ESP32S3 CrowPanel and the Teensy from a single USB power cable.