RainMaker library: Minor changes

- Use Serial.print instead of log_i for QR code helper information,
  so that it is always printed by default.
- Expose the RainMaker factory reset and wifi reset APIs.
- Simplify example to have only a Switch device.
- Enable push button based Factory reset and Wi-Fi reset.
- Moved API doc to RainMaker library's top level README.
- Other minor doc changes.

Author: shahpiyushv

Diff for: libraries/RainMaker/README.md

@@ -0,0 +1,27 @@
+# ESP RainMaker Switch
+
+This example demonstrates how to build a switch device to be used with ESP RainMaker.
+
+## What to expect in this example?
+
+- This example sketch uses the on board Boot button and GPIO16 to demonstrate an ESP RainMaker switch device.
+- After compiling and flashing the example, add your device using the [ESP RainMaker phone apps](https://rainmaker.espressif.com/docs/quick-links.html#phone-apps) by scanning the QR code.
+- Toggling the state from the phone app will toggle the switch state (GPIO16).
+- Pressing the Boot button will toggle the switch state (GPIO16) and the same will reflect on the phone app.
+
+### Output
+
+```
+[    63][I][RMaker.cpp:13] event_handler(): RainMaker Initialised.
+[    69][I][WiFiProv.cpp:158] beginProvision(): Already Provisioned
+[    69][I][WiFiProv.cpp:162] beginProvision(): Attempting connect to AP: Viking007_2GEXT
+
+Toggle State to false.
+[  8182][I][RMakerDevice.cpp:162] updateAndReportParam(): Device : Switch, Param Name : Power, Val : false
+Toggle State to true.
+[  9835][I][RMakerDevice.cpp:162] updateAndReportParam(): Device : Switch, Param Name : Power, Val : true
+Received value = false for Switch - Power
+Received value = true for Switch - Power
+Toggle State to false.
+[ 29937][I][RMakerDevice.cpp:162] updateAndReportParam(): Device : Switch, Param Name : Power, Val : false
+```

Diff for: libraries/RainMaker/examples/README.md

@@ -1,34 +1,31 @@
-//This example demonstrates the ESP RainMaker with the custom device and standard Switch device.
+//This example demonstrates the ESP RainMaker with a standard Switch device.
 #include "RMaker.h"
 #include "WiFi.h"
 #include "WiFiProv.h"
 
-#define DEFAULT_FAN_SPEED 4
 #define DEFAULT_POWER_MODE true
-const char *service_name = "Prov_1234";
+const char *service_name = "PROV_1234";
 const char *pop = "abcd1234";
 
 //GPIO for push button
 static int gpio_0 = 0;
 //GPIO for virtual device
 static int gpio_switch = 16;
-static int gpio_fan = 17;
 /* Variable for reading pin status*/
 bool switch_state = true;
-bool fan_state = true;
 
 //The framework provides some standard device types like switch, lightbulb, fan, temperaturesensor.
 static Switch my_switch("Switch", &gpio_switch);
-//You can also define custom devices using the 'Device' base class object, as shown here
-static Device my_device("Fan", ESP_RMAKER_DEVICE_FAN, &gpio_fan);
 
 void sysProvEvent(arduino_event_t *sys_event)
 {
     switch (sys_event->event_id) {      
         case ARDUINO_EVENT_PROV_START:
 #if CONFIG_IDF_TARGET_ESP32
+        Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on BLE\n", service_name, pop);
         printQR(service_name, pop, "ble");
 #else
+        Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on SoftAP\n", service_name, pop);
         printQR(service_name, pop, "softap");
 #endif        
         break;
@@ -41,51 +38,36 @@ void write_callback(Device *device, Param *param, const param_val_t val, void *p
     const char *param_name = param->getParamName();
 
     if(strcmp(param_name, "Power") == 0) {
-        Serial.printf("\nReceived value = %s for %s - %s\n", val.val.b? "true" : "false", device_name, param_name);
-        if(strcmp(device_name, "Switch") == 0) {
-            switch_state = val.val.b;
-            (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
-        }
-        if(strcmp(device_name, "Fan") == 0) {
-            fan_state = val.val.b;
-            (fan_state == false) ? digitalWrite(gpio_fan, LOW) : digitalWrite(gpio_fan, HIGH);
-        }
-    }
-    else if(strcmp(param_name, "Speed") == 0) {
-        Serial.printf("\nReceived value = %d for %s - %s\n", val.val.i, device_name, param_name);
+        Serial.printf("Received value = %s for %s - %s\n", val.val.b? "true" : "false", device_name, param_name);
+        switch_state = val.val.b;
+        (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
+        param->updateAndReport(val);
     }
-    param->updateAndReport(val);
 }
 
 void setup()
 {
     Serial.begin(115200);
     pinMode(gpio_0, INPUT);
     pinMode(gpio_switch, OUTPUT);
-    pinMode(gpio_fan, OUTPUT);
 
     Node my_node;    
     my_node = RMaker.initNode("ESP RainMaker Node");
 
     //Standard switch device
     my_switch.addCb(write_callback);
 
-    //Creating custom fan device
-    my_device.addNameParam();
-    my_device.addPowerParam(DEFAULT_POWER_MODE);
-    my_device.addSpeedParam(DEFAULT_FAN_SPEED);
-    my_device.assignPrimaryParam(my_device.getParamByName(ESP_RMAKER_DEF_POWER_NAME));
-    my_device.addCb(write_callback);
-    
-    //Add switch and fan device to the node   
+    //Add switch device to the node   
     my_node.addDevice(my_switch);
-    my_node.addDevice(my_device);
 
     //This is optional 
     RMaker.enableOTA(OTA_USING_PARAMS);
     //If you want to enable scheduling, set time zone for your region using setTimeZone(). 
     //The list of available values are provided here https://rainmaker.espressif.com/docs/time-service.html
-    RMaker.setTimeZone("Asia/Shanghai");
+    // RMaker.setTimeZone("Asia/Shanghai");
+    // Alternatively, enable the Timezone service and let the phone apps set the appropriate timezone
+    RMaker.enableTZService();
+
     RMaker.enableSchedule();
 
     RMaker.start();
@@ -96,18 +78,33 @@ void setup()
 #else
     WiFiProv.beginProvision(WIFI_PROV_SCHEME_SOFTAP, WIFI_PROV_SCHEME_HANDLER_NONE, WIFI_PROV_SECURITY_1, pop, service_name);
 #endif
-
 }
 
 void loop()
 {
-    if(digitalRead(gpio_0) == LOW) { //Push button 
-        switch_state = !switch_state;
-        fan_state = !fan_state;
-        my_switch.updateAndReportParam(ESP_RMAKER_DEF_POWER_NAME, switch_state);
-        my_device.updateAndReportParam(ESP_RMAKER_DEF_POWER_NAME, fan_state);
-        (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
-        (fan_state == false) ? digitalWrite(gpio_fan, LOW) : digitalWrite(gpio_fan, HIGH); 
+    if(digitalRead(gpio_0) == LOW) { //Push button pressed
+
+        // Key debounce handling
+        delay(100);
+        int startTime = millis();
+        while(digitalRead(gpio_0) == LOW) delay(50);
+        int endTime = millis();
+
+        if ((endTime - startTime) > 10000) {
+          // If key pressed for more than 10secs, reset all
+          Serial.printf("Reset to factory.\n");
+          RMakerFactoryReset(2);
+        } else if ((endTime - startTime) > 3000) {
+          Serial.printf("Reset Wi-Fi.\n");
+          // If key pressed for more than 3secs, but less than 10, reset Wi-Fi
+          RMakerWiFiReset(2);
+        } else {
+          // Toggle device state
+          switch_state = !switch_state;
+          Serial.printf("Toggle State to %s.\n", switch_state ? "true" : "false");
+          my_switch.updateAndReportParam(ESP_RMAKER_DEF_POWER_NAME, switch_state);
+          (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
+      }
     }
     delay(100);
 }

Diff for: libraries/RainMaker/examples/RMakerDevice/README.md

@@ -4,6 +4,7 @@
 #include "Arduino.h"
 #include "RMakerNode.h"
 #include "RMakerQR.h"
+#include "RMakerUtils.h"
 #include <esp_rmaker_standard_types.h>
 
 class RMakerClass
@@ -25,4 +26,4 @@ class RMakerClass
 
 extern RMakerClass RMaker;
 
-#endif
+#endif

Diff for: libraries/RainMaker/examples/RMakerDevice/.skip.esp32c3 renamed to libraries/RainMaker/examples/RMakerSwitch/.skip.esp32c3

@@ -16,9 +16,9 @@ static void printQR(const char *name, const char *pop, const char *transport)
     snprintf(payload, sizeof(payload), "{\"ver\":\"%s\",\"name\":\"%s\"" \
                     ",\"pop\":\"%s\",\"transport\":\"%s\"}",
                     PROV_QR_VERSION, name, pop, transport);
-    log_i("Scan this QR code from the phone app for Provisioning.");
+    Serial.printf("Scan this QR code from the ESP RainMaker phone app.\n");
     qrcode_display(payload);
-    log_i("If QR code is not visible, copy paste the below URL in a browser.\n%s?data=%s", QRCODE_BASE_URL, payload);
+    Serial.printf("If QR code is not visible, copy paste the below URL in a browser.\n%s?data=%s\n", QRCODE_BASE_URL, payload);
 }
 
-#endif
+#endif

Diff for: libraries/RainMaker/examples/RMakerDevice/.skip.esp32s2 renamed to libraries/RainMaker/examples/RMakerSwitch/.skip.esp32s2

@@ -0,0 +1,16 @@
+#include "esp_system.h"
+#if ESP_IDF_VERSION_MAJOR >= 4 && CONFIG_IDF_TARGET_ESP32
+
+#include <esp_rmaker_utils.h>
+
+static void RMakerFactoryReset(int seconds)
+{
+    esp_rmaker_factory_reset(seconds);
+}
+
+static void RMakerWiFiReset(int seconds)
+{
+    esp_rmaker_wifi_reset(seconds);
+}
+
+#endif