Arduino Wiring

Wiring the Antenna

Your Feather M0 does not come with an antenna, but there are two ways of wiring one up.

 

For this guide, and to keep the build cost-effective, we soldered a small, 82mm wire to the ANT pad.

  • Antenna Options and installation instructions are detailed on this product's learn guide's antenna options page. 
  • Note: Antenna length differs between regions, make sure you cut the antenna to the correct length for your region.

Add a required jumper wire - Pin 3 is internally connected to pin io0, but we'll need to add a jumper wire between the Feather Digital Pin 6 and Feather Pin io1.

Wiring

Make the following connections between the Feather M0 and the DHT22:

  • Feather 3V to DHT22 Pin 1
  • Feather Pin 10 to DHT22 Pin 2
  • Feather Ground to DHT22 Pin 3
  • Add a 10k ohm resistor between the VCC (DHT Pin 1) and Data Pin (DHT Pin 2) on the DHT22.
Make sure there is a wire connected between Pin 6 and the pin labeled `io1`. Your sketch will not work properly if these are not connected.
This guide was first published on Sep 21, 2018. It was last updated on Sep 21, 2018. This page (Arduino Wiring) was last updated on Nov 29, 2018.