Issue 23 (#24)

Add support for Pi4 - use rppal 0.12.0

Author: dmalenic

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 0.2.1
+
+* Support for Raspberry Pi 4
+
+  - upgraded [rppal](https://github.com/golemparts/rppal/) to `0.12.0`. See [Issue #12](https://github.com/rahul-thakoor/rust_gpiozero/issues/23)
+
 ## 0.2.0
 `rust_gpiozero` now uses [rppal](https://github.com/golemparts/rppal/) for gpio access
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rust_gpiozero"
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Rahul Thakoor <[email protected]>"]
 repository = "https://github.com/rahul-thakoor/rust_gpiozero.git"
 homepage = "https://github.com/rahul-thakoor/rust_gpiozero.git"
@@ -15,7 +15,7 @@ edition = "2018"
 
 
 [dependencies]
-rppal = "0.11.1"
+rppal = "0.12.0"
 
 [badges]
 travis-ci = { repository = "rahul-thakoor/rust_gpiozero", branch = "master" }