The Hookup

This fritzing breadboard diagram is straight forward. Here is the line by line summary:

MCU Power:

  • Feather [3V] --> Breadboard VCC [Red Power Rail]
  • Feather [GND] --> Breadboard GND [Blue Ground Rail]

Mic:

  • Max9814 [GND] --> Breadboard [GND]
  • Max9814 [Vdd] --> Breadboard [VCC]
  • Max9814 [Gain] --> Breadboard [VCC]
  • Max9814 [OUT] --> Feather [A0] (analog)

Heart Rate:

  • Polar F5 [GND] --> Breadboard [GND]
  • Polar F5 [VCC] --> Breadboard [VCC]
  • Polar F5 [OUT] --> Feather #11 (digital in)

Light:

  • TSL2561 [Vin] --> Breadboard [VCC]
  • TSL2561 [GND] --> Breadboard [GND]
  • TSL2561 [SDA] --> Feather #2 [SDA]
  • TSL2561 [SCL] --> Feather #3 [SCL]

Temp/Humidity:

  • DHT22 [VCC] --> Breadboard [VCC]
  • DHT22 [OUT] --> Feather #5
    Also connect through a 10k Resistor --> Breadboard [VCC]
  • DHT22 [GND] --> Breadboard [GND]

The wiring and pin connects can be seen a little easier with the OLED display removed.

adafruit_io_schluff-breadboard-feather-exposed.jpg
Schluff - The Sleep Monitor [Display Wing Removed]

The Feather 32u4 BLE datasheet summary can be helpful so I've included it below. 

This guide was first published on Nov 19, 2016. It was last updated on Nov 19, 2016. This page (The Hookup) was last updated on Nov 13, 2019.