expanding readme with debug notes

CHANGELOG.md

@@ -7,6 +7,11 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.1.3] - 2020-07-28
+- Added [@isramos](https://github.com/isramos) frequency option
+- Added note about running `rpi-update` to README
+- Color flair for `rtl_433` installer helper
+
 ## [0.1.2] - 2020-03-01
 - Improved and rename the `install-rtl_433-app`. Fixed links in README to the
   script

README.md

@@ -34,25 +34,21 @@ rtl_433 -F json
 
 Success looks like the command running and capturing decoded messages from devices chirping.
 
-#### Raspberry Pi firmware update
-
-Recommend updating your raspberry pi to latest firmware if you have an older RPi
-you are using.  This can help prevent USB resets forcing you to unplug/replug
-the USB rtlsdrl:
-
-`sudo rpi-update` 
-
 ### Install the node
 
-**recommended**: Install the node via the NodeRED palette manager.
+**recommended**: 
+Install the node via the NodeRED palette manager.
 
-**Local clone**: If you want to hack on the code you can clone this repository locally and run the following command in your Node-RED user directory - typically
-`~/.node-red`
+**Local clone**: 
+If you want to hack on the code you can clone this repository locally you can clone project
+and install it into your local Node-RED user directory, which is typically `~/.node-red`.
 
 Example:
 ```
+cd ~/projects
+git clone https://github.com/dayne/node-red-contrib-rtl_433
 cd ~/.node-red
-npm i node-red-contrib-rtl_433
+npm i ~/projects/node-red-contrib-rtl_433
 ```
 
 ### Usage
@@ -61,6 +57,37 @@ Install the node and then start writing flows. More examples later once folks co
 
 * `config.frequency` can be used to pass a specific frequency for `rtl_433` listen on.
 
+
+## Debugging help
+
+This node is developed/tested on two primary platforms: Ubuntu x86 and Raspbian
+on an RPi4. Here are a few notes people have tossed back on making their system
+more stable:
+
+#### Raspberry Pi firmware update
+
+Recommend updating your raspberry pi to latest firmware if you have an older RPi
+you are using.  This can help prevent USB resets forcing you to unplug/replug
+the USB rtlsdrl:
+
+`sudo rpi-update` 
+
+#### rtl install failing: `usb_open error -3`
+
+The rtl installer helper app tries to make bootstrapping the `rtl_433`
+dependancy easy on Debian/Ubuntu/Raspbian system. It is by no means perfect. 
+
+```
+usb_open error -3
+Please fix the device permissions, e.g. by installing the udev rules file
+rtl-sdr.rules
+```
+
+A possible fix is to copy https://github.com/keenerd/rtl-sdr/blob/master/rtl-sdr.rules
+to /etc/udev/rules.d/rtl-sdr.rules and rebooting the pi.
+
+More debug discussion on this with @isramos at [issue #4](https://github.com/dayne/node-red-contrib-rtl_433/issues/2)
+
 ### Credits
 
 This node is derived from the [`node-red-daemon`](https://github.com/node-red/node-red-nodes/blob/master/utility/daemon/daemon.js) node and focused on the specific command `rtl_433` usage.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-red-contrib-rtl_433",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "RTL_433 nodeRED node outputs message payloads from the rtl_433 tool.",
   "main": "rtl_433/rtl_433.js",
   "scripts": {