Delay after soft reset

Author: mnishiguchi

README.md

@@ -1,7 +1,7 @@
 # AHT20
 
 [![Hex.pm](https://img.shields.io/hexpm/v/aht20.svg)](https://hex.pm/packages/aht20)
-[![API docs](https://img.shields.io/hexpm/v/aht20.svg?label=docs)](https://hexdocs.pm/aht20/AHT20.html)
+[![API docs](https://img.shields.io/hexpm/v/aht20.svg?label=docs)](https://hexdocs.pm/aht20)
 ![CI](https://github.com/mnishiguchi/AHT20/workflows/CI/badge.svg)
 
 Use [AHT20](http://www.aosong.com/en/products-32.html) temperature & humidity sensor in Elixir.

lib/aht20/sensor.ex

@@ -58,18 +58,24 @@ defmodule AHT20.Sensor do
     Process.sleep(40)
     :ok = reset(aht20)
     :ok = init(aht20)
+
     {:ok, aht20}
   rescue
     e -> {:error, e}
   end
 
   @doc """
   Restarts the sensor system without having to turn off and turn on the power again.
+  Soft reset takes no longer than 20ms.
   For more info. please refer to the data sheet (section 5.5).
   """
   @spec reset(t) :: :ok | {:error, any}
   def reset(%{i2c_ref: i2c_ref, i2c_address: i2c_address}) do
-    Circuits.I2C.write(i2c_ref, i2c_address, [@aht20_cmd_soft_reset])
+    :ok = Circuits.I2C.write(i2c_ref, i2c_address, [@aht20_cmd_soft_reset])
+    Process.sleep(20)
+    :ok
+  rescue
+    e -> {:error, e}
   end
 
   # Initialize the sensor system.

mix.exs

@@ -1,7 +1,7 @@
 defmodule AHT20.MixProject do
   use Mix.Project
 
-  @version "0.1.0"
+  @version "0.1.1"
   @source_url "https://github.com/mnishiguchi/aht20"
 
   def project do