Add modem example (serialhost)

.travis.yml

@@ -13,13 +13,16 @@ env:
 install:
 - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
 - ( cd ${HOME} && curl -O https://downloads.arduino.cc/arduino-${ARDUINO_VERSION}-linux64.tar.xz && tar xvf arduino-${ARDUINO_VERSION}-linux64.tar.xz )
+- ( cd ${HOME} && wget -q -O SoftwareSerial.zip https://github.com/plerup/espsoftwareserial/archive/097712eb07f5b3a70ef419b6e7a7ed2ada5aab85.zip && unzip -q SoftwareSerial.zip
+  && rm -rf SoftwareSerial.zip && mv espsoftwareserial-* SoftwareSerial)
 - git clone --branch ${ARDUINO_ESP8266_VERSION} https://github.com/esp8266/Arduino.git ${ARDUINO_ESP8266_ROOT}
 - git submodule init && git submodule update
 - ( cd ${ARDUINO_ESP8266_ROOT}/tools && python get.py )
 before_script:
 - mkdir -p ${ARDUINO_HOME}/libraries
-- ( cd ${ARDUINO_HOME}/libraries && ln -s ${TRAVIS_BUILD_DIR} firebase-arduino && ln -s ${TRAVIS_BUILD_DIR}/src/third-party/arduino-json-5.2 ArduinoJson )
+- ( cd ${ARDUINO_HOME}/libraries && ln -s ${TRAVIS_BUILD_DIR} firebase-arduino && ln -s ${TRAVIS_BUILD_DIR}/src/third-party/arduino-json-5.2 ArduinoJson && ln -s ${HOME}/SoftwareSerial SoftwareSerial )
 script:
 - ${ARDUINO_ROOT}/arduino-builder -verbose  -hardware ${ARDUINO_ROOT}/hardware/ -tools ${ARDUINO_ESP8266_ROOT}/tools/ -tools ${ARDUINO_ROOT}/tools-builder/ -fqbn esp8266com:esp8266:nodemcuv2 -libraries ${ARDUINO_HOME}/libraries/ -prefs build.flash_ld=${ARDUINO_ESP8266_ROOT}/tools/sdk/ld/eagle.flash.4m.ld -prefs build.flash_freq=40 -prefs build.flash_size=4M examples/FirebaseDemo_ESP8266/FirebaseDemo_ESP8266.ino
+- ${ARDUINO_ROOT}/arduino-builder -verbose  -hardware ${ARDUINO_ROOT}/hardware/ -tools ${ARDUINO_ESP8266_ROOT}/tools/ -tools ${ARDUINO_ROOT}/tools-builder/ -fqbn esp8266com:esp8266:nodemcuv2 -libraries ${ARDUINO_HOME}/libraries/ -prefs build.flash_ld=${ARDUINO_ESP8266_ROOT}/tools/sdk/ld/eagle.flash.4m.ld -prefs build.flash_freq=40 -prefs build.flash_size=4M examples/FirebaseSerialHost_ESP8266/FirebaseSerialHost_ESP8266.ino
 - (cd test && make check)
 - (cd test/modem/ && make test)

examples/FirebaseSerialHost_ESP8266/FirebaseSerialHost_ESP8266.ino

@@ -0,0 +1,67 @@
+//
+// Copyright 2015 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+
+// A sample that will start our serial transciever listening on a software
+// port and allow debug over the main serial port.
+//
+// A suggested setup for testing this example would be a USB to TTL cable
+// with the green wire connected to pin 5 and the white wire connected to
+// pin 4 (on the huzzah feather esp8266).
+// First edit begin.txt and put in your host and secret.
+// Then run the following commands to setup the serial port in linux:
+// stty -F /dev/ttyUSB0 9600 raw -echo -echoe -echok
+// Then on one console do:
+// cat /dev/ttyUSB0 &
+// This console will now read all responses from the modem. Then do:
+// cat begin.txt > /dev/ttyUSB0
+// You should see +OK and you can now feed in the other example commmands.
+
+#include <SoftwareSerial.h>
+#include <ESP8266WiFi.h>
+
+#include <Firebase.h>
+#include <SerialTransceiver.h>
+
+SoftwareSerial data_serial(5 /*RX*/, 4/*TX*/);
+firebase::modem::SerialTransceiver transceiver;
+
+void setup() {
+  Serial.begin(9600);
+
+  // connect to wifi.
+  WiFi.begin("SSID", "PASSWORD");
+  Serial.print("connecting");
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print(".");
+    delay(500);
+  }
+  Serial.println();
+  Serial.print("connected: ");
+  Serial.println(WiFi.localIP());
+
+  data_serial.begin(9600);
+  while (!data_serial) {
+    Serial.println("Error initilizing serial.");
+    delay(5000);
+  }
+
+  transceiver.begin(&data_serial);
+}
+
+void loop() {
+  transceiver.loop();
+}

examples/FirebaseSerialHost_ESP8266/begin.txt

@@ -0,0 +1,2 @@
+BEGIN $YOUR_HOST $YOUR_SECRET
+

examples/FirebaseSerialHost_ESP8266/begin_stream.txt

@@ -0,0 +1,2 @@
+BEGIN_STREAM /serial/test
+

examples/FirebaseSerialHost_ESP8266/end_stream.txt

@@ -0,0 +1,2 @@
+END_STREAM
+

examples/FirebaseSerialHost_ESP8266/get.txt

@@ -0,0 +1,2 @@
+GET /serial/test
+

examples/FirebaseSerialHost_ESP8266/get_push.txt

@@ -0,0 +1 @@
+GET /serial/push_test

examples/FirebaseSerialHost_ESP8266/push.txt

@@ -0,0 +1 @@
+PUSH /seria/push_test "this is a test string \ "

examples/FirebaseSerialHost_ESP8266/remove.txt

@@ -0,0 +1 @@
+REMOVE /serial/test

examples/FirebaseSerialHost_ESP8266/set.txt

@@ -0,0 +1,2 @@
+SET /serial/test this is a test string \ "
+