Zgateway rfm69 (#88)

* some minor correction after coadcy checks

* Put serial communication speed as a parameter in user_config.h

* complete gateway file

receiving ok
sending ko
#32

* add rfm69 to CI

* change receiver key and minor improvments

#32

now ok on receiving and sending with RFM69

* add schema and tested pinout for RFM69/RF/IR wiring

#32

* RFM69 library add

.travis.yml

@@ -31,6 +31,7 @@ install:
   - git clone https://github.com/adafruit/DHT-sensor-library /usr/local/share/arduino/libraries/DHT_sensor_library
   - git clone https://github.com/adafruit/Adafruit_Sensor /usr/local/share/arduino/libraries/Adafruit_Sensor
   - git clone https://github.com/sparkfun/SparkFun_BME280_Arduino_Library /usr/local/share/arduino/libraries/SparkFun_BME280
+  - git clone https://github.com/LowPowerLab/RFM69 /usr/local/share/arduino/libraries/RFM69
   - arduino --pref "boardsmanager.additional.urls=http://arduino.esp8266.com/stable/package_esp8266com_index.json" --save-prefs
   - arduino --install-boards esp8266:esp8266
   - arduino --board $BD --save-prefs