PCBasPRO_0003_ESP32C3_CAN_SD_GNSS

PCB to Study the feasibility of ESP32 on 0002

NOTE: Ongoing updates on text description, PCB and Schematic

Features:

• 5V input (via CAN or USB)
• Digital power auto-select CAN, or USB or Battery ( in this order)
• Battery charger ready (100mA-500mA configurable, Led and battery manager unpopulated )
• GNSS connector (ongoing pin selection), or GNSS on Board L80 or L80R or L86 (electrolitic capacitor as a bulk and diode unpopulated)
• CAN Input
• Usb input
• SD input
• Esp32C3 with internal PCB antena
• ESD ready (not populated)
• 3v3 LDO
• 19.6x50mm (easybreak for 43.3mm, 46.3mm, 47mm ) PCB (First draft- 31mmX38mm PCB) ufl conection ready (not for L80R, unpopulated)
• VESC pin compatible
  • CAN_TX 1
  • CAN_RX 0
  • MOSI 4
  • MISO 6
  • SCK 5
  • CS_sd 7
  • CS_disp 10
  • UART_TX 21
  • UART_RX 20
  • LED_RED_PIN 2
  • LED_BLUE_PIN 3

Current limitations:

• 3V3 LDO 500mA

My next steps:

• order assemble PCB's (will order with 002)
• test

PCB Status:

TOP:

Bottom:

Second draft TOP:

Second draft Bottom:

First draft TOP: First draft Bottom: