QTPy49

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Tindie-mediums.png

QTPy49 P18254-720px.jpg

Features[edit]

  • CPU choices are
  • Socketed CPU
  • Connectors/Headers
    • DC Power
    • AD0 GVS
    • AD1 GVS
    • AD2 GVS
    • AD3 GVS
    • I2C with ground/VCC
    • TX/RX with ground/VCC
    • SPI with ground/VCC
  • QTPy49 can be powered from with either the USB C or DC jack
    • Automatic Schottky diode power switching between
      • 5V from USB C
      • 5V on external DC jack
      • 7-12V on DC jack
  • 49x49mm ODAS form factor
  • (4) 4-40 mounting holes

CPU Pinouts[edit]

Adafruit QT Py SAMD[edit]

Adafruit products Adafruit QT Py SAMD21 pinout.png

Seeed Studio XAIO SAMD[edit]

Seeeduino-XIAO-pin-out.jpg

Adafruit QT Py RP2040[edit]

Adafruit products qtpy-rp2040-pins.png

Seeed Studio XAIO RP2040[edit]

Seeed-xinpin-rp2040.jpg

Connectors/Headers[edit]

QTPy49-P18253-720pxV.jpg

  • Ground, Voltage, Signal (GVS) connections

J1 - DC In[edit]

  • QTPy49 can be powered from with either the USB C or DV jack
    • Automatic Schottky diode power switching
    • 7-12V if regulator is installed
    • 5V if regulator is not installed (install J2 jumper if not using regulator)
  • Center positive

J2 - Short Regulator[edit]

  • Install if J1 has 5V
  • No need to install U2 regulator

J3 - SPI[edit]

  1. GND
  2. 3.3V
  3. SS, AD3
  4. MOSI, S10
  5. MISO, D9
  6. SCK, D8

J4 - UART[edit]

  1. GND
  2. 3.3V
  3. TX, D6
  4. RX, D7

J5 - I2C[edit]

  1. GND
  2. 3.3V
  3. D4, SDA
  4. D5, SCL

J6 - AD3[edit]

  • Digital I/O 3
  • Analog In 3
  • PWM output
  • Capacitive touch input
  • Pinout
  1. GND
  2. 3.3V
  3. AD3

J7 - AD2[edit]

  • Digital I/O 2
  • Analog In 2
  • PWM
  • Capacitive touch input
  • Pinout
  1. GND
  2. 3.3V
  3. AD2

J8 - AD1[edit]

  • Digital I/O 1
  • Analog In 1
  • Capacitive touch input
  • AREF pin
  • Pinout
  1. GND
  2. 3.3V
  3. AD1

J9 - AD0[edit]

  • Digital I/O 0
  • Analog In 0
  • True analog output with 10 bit precision
  • Does not have PWM
  • Capacitive touch input
  • Pinout
  1. GND
  2. 3.3V
  3. AD0

Prototype[edit]

  • Built on GRID49 card
  • Breaks out QY Py pins to (2) 1x7 headers
  • Power/ground distribution on 2x8 header
  • Limit: Must be powered from USB C connector

QTPy Proto P18238-720px.jpg

Mechanicals[edit]

QTPy49 MECHS.PNG

Assembly Sheet[edit]