RPI-CONSOLE-U

Features

• Console port lets you talk to your Raspberry Pi over USB without a keyboard/mouse/monitor or Ethernet connection.
  • 115200 baud
• USB Micro-B connector
  • Mounted on the bottom of the card
  • See also our USB Mini connector version
• Real FTDi FT230XS
• Jumper selectable - power the Pi from your computer's USB port.
  • Some nwere Pi cards may take too much power
• Transmit/receive LEDs
• 26-pin connector works with Model A and Model B Pis

Options

Extended 26-pin Connector

From RPI-CONSOLE page

Extended 40-pin Connector

From RPI-CONSOLE page

Low profile 26-pin Connector

Driver

Windows Driver setup

Prototype Qualification Tests

Qualification Testing

Factory Acceptance Tests

Procedure to test RPI-Console-U card

GVSDuino wired to custom board

• Custom RASPI-PLUS-GVS-CFG Test card to GVSDuino card wiring
  • Wire V5-1 header pin S (pin 3) to GVSDuino GVS pin D3 SIG (TX)
  • Wire V5-2 header pin S (pin 3) to GVSDuino GVS pin D2 SIG (RX)
  • Wire V5-1 header pin GND (pin 1) to GVSDuino GVS pin D2 GND
  • Wire V5-2 header pin GND (pin 1) to GVSDuino GVS pin D3 GND
  • Wire V5-1 header pin +5V (pin 2) to GVSDuino GVS pin D2 +5V power
  • Wire V5-2 header pin +5V (pin 2) to GVSDuino GVS pin D3 +5V power
• GVS-Switch to GVSDuino wiring
  • GVS-Switch Pin 1 (GND) to GVSDuino J3 pin 6
  • GVS-Switch Pin 2 (VCC) to GVSDuino J3 pin 2
  • GVS-Switch Pin 3 (RESET*) to GVSDuino J3 pin 7

Test Software

• Push button to reset on GVSDuino to send out canned message
• Poll for receive character
  • When character is received, echo back character
• Loop forever
• Code on GitHub

Test Procedure

• Test setup as above
• Test setup powered down
• Install UUT (RPI-Console-U card being tested)
• Connect USB Micro cable from Test Computer to UUT
• Boards should power up
• Look in Device manager to make sure COM port was added
• Run putty on Test Computer
  • Select COM port in putty
  • 9600, n, 8, 1
  • No handshake
• Hit reset on GVS-Switch card on 830 point breadboard
• Verify the message comes back

The quick brown fox jumped over the lazy dog
0123456789
asdfghjkl
Hit keys to test

• Type and verify that the character comes back
• Disconnect USB to RPI-Console

Custom wired RASPI-PLUS-GVS-CFG bare board

• Card is connected to act as a Raspberry Pi emulator
  • Install 20x2 male header going up on board to board connector at top of the board
  • Install the TXS0108EWPR 3.3V<>5V Voltage Translator at U2
  • Install F1 (5V fuse)
  • Install 3.3V regulator at C2 position

• Wire the Vreg
  • VReg pin 1 goes to ground side of C2
  • VReg pin 2 goes to +3.3V side of C2
  • Jumper tab to VReg pin 2
  • Wire VReg pin 3 to V5-8 pin 2 (+5V)
• Add 47 uF cap from IO16-2 (+5V) and IO16-1 (GND)
• Install 330 Ohm resistor at R4
• Install 3mm LED at W jumper (J22-1 to J22-2) position (Cathode of LED to pin 1 of J22)
• Add wire from UART connector pin 3 to V3-1 pin (TXD on CFG card) (Serial out from Pi)
• Add wire from UART connector pin 4 to V3-2 pin (RXD on CFG card) (Serial in to Pi)
• Install 2x3 header at V5-1/V5-2 position
  • V5-1 (pin 1 = GND, pin 2 = +5V, pin 3 = TxD - Serial out from the Arduino)
  • V5-2 (pin 1 = GND, pin 2 = +5V, pin 3 = RxD - Serial in to the Arduino)

Specs

• 26-pin stacking connector
• 40-pin stacking connector

External links

• Adafruit tutorial
• NOOBS without a display
• How COM Ports Are Allocated On Driver Installation

Rev X3 (vs X2)

• Moved "Power Pi from USB" connector to center of card
• Rev X2 (vs X1)
• Moved connector slightly closer to the edge
• Made USB connector PWB pads longer
• Adds ID resistor pads to USB pin
  • Not populated

Rev X1 Checkout

• Micro USB mounting holes fit well
• Connector could be slightly farther to the edge
• USB connector PWB pads were too short - trimmed pins to fit
• Ordered 3 more from OshPark new X2 rev

Assembly Sheet

• RPI-CONSOLE-U Assembly Sheet