MySensorsE32

Custom MySensors [https://github.com/mysensors/MySensors] modifications for the ΕΒΥΤΕ E22-400T30D [https://www.ebyte.com/en/product-view-news.html?id=939] module (LoRa SX1278 SX1276 433MHz rf Module)

Tested with MySensors v.2.3.2 and LoRa_E32_Series_Library [https://github.com/xreef/LoRa_E32_Series_Library] v1.5.0

Insctruction on how to use ebyte e32 with my sensors

1. LoRa_E32_Series_Library

   • Download LoRa_E32_Series_Library from [https://github.com/xreef/LoRa_E32_Series_Library]
   • Place LoRa_E32.cpp, LoRa_E32.h and includes directory (statesNaming.h) in folder \MySensors\hal\transport\E32\driver (create dir if needed)

2. E32 Transport for MySensors

   • Place file MyTransportE32.cpp in folder \MySensors\hal\transport\E32\

3. MySensors config files modifications. Since we define a new transport called 'MY_RADIO_E32' we have to modify the following files

   1. MyConfig.h Add the following definitions

   #define MYLORA_DEFAULT_E32_RX_PIN (9)
   #define MYLORA_DEFAULT_E32_TX_PIN (8)
   #define MYLORA_DEFAULT_E32_AUX_PIN (7)
   #define MYLORA_DEFAULT_E32_M0_PIN (10)
   #define MYLORA_DEFAULT_E32_M1_PIN (11)
   #ifndef MYLORA_E32_RX_PIN 
   #define MYLORA_E32_RX_PIN  MYLORA_DEFAULT_E32_RX_PIN
   #endif
   #ifndef MYLORA_E32_TX_PIN  
   #define MYLORA_E32_TX_PIN  MYLORA_DEFAULT_E32_TX_PIN
   #endif
   #ifndef MYLORA_32_AUX_PIN  
   #define MYLORA_32_AUX_PIN MYLORA_DEFAULT_E32_AUX_PIN
   #endif
   #ifndef MYLORA_E32_M0_PIN  
   #define MYLORA_E32_M0_PIN MYLORA_DEFAULT_E32_M0_PIN
   #endif
   #ifndef MYLORA_E32_M1_PIN  
   #define MYLORA_E32_M1_PIN MYLORA_DEFAULT_E32_M1_PIN
   #endif

   These are the module RX,TX and AUX pin connections.

   Also change line

    // Enable sensor network "feature" if one of the transport types was enabled
    #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB) || defined(MY_RADIO_RFM69) || defined(MY_RADIO_RFM95) || defined(MY_RS485)
   

   to

   // Enable sensor network "feature" if one of the transport types was enabled
   #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB) || defined(MY_RADIO_RFM69) || defined(MY_RADIO_RFM95) || defined(MY_RS485) || defined(MY_RADIO_E32) 
   

   2. MySensors.h

   Change line

   // TRANSPORT INCLUDES
   #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB) || defined(MY_RADIO_RFM69) || defined(MY_RADIO_RFM95) || defined(MY_RS485)
   

   to

   // TRANSPORT INCLUDES
   #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB) || defined(MY_RADIO_RFM69) || defined(MY_RADIO_RFM95) || defined(MY_RS485) || defined(MY_RADIO_E32) 
   

   Also at the section // Transport drivers include the MyTransportE32.cpp driver For example change from

   // Transport drivers
   #if defined(MY_RADIO_RF24)
   #include "hal/transport/RF24/driver/RF24.cpp"
   #include "hal/transport/RF24/MyTransportRF24.cpp"
   

   to

   // Transport drivers
   #if defined(MY_RADIO_RF24)
   #include "hal/transport/RF24/driver/RF24.cpp"
   #include "hal/transport/RF24/MyTransportRF24.cpp"
   #elif defined(MY_RADIO_E32)
   #include "hal/transport/E32/MyTransportE32.cpp"
   

   3. MyCapabilities.h Optional step in // Transport section

   Change line

   #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB)
   #define MY_CAP_RADIO "N"
   

   to

   #if defined(MY_RADIO_RF24) || defined(MY_RADIO_NRF5_ESB)
   #define MY_CAP_RADIO "N"
   #elif defined(MY_RADIO_E32)
   #define MY_CAP_RADIO "E"
   

   4. MySensorsCore.cpp

   Optional step add a 500ms delay in function sendSketchInfo

   Change

    bool sendSketchInfo(const char *name, const char *version, const bool requestEcho)
   {
       bool result = true;
   	if (name) {
   	    result &= _sendRoute(build(_msgTmp, GATEWAY_ADDRESS, NODE_SENSOR_ID, C_INTERNAL, I_SKETCH_NAME,
   	                           requestEcho).set(name));
       }
       if (version) {
   	    result &= _sendRoute(build(_msgTmp, GATEWAY_ADDRESS, NODE_SENSOR_ID, C_INTERNAL, I_SKETCH_VERSION,
   	                           requestEcho).set(version));
       }
       return result;
   }

   to

    bool sendSketchInfo(const char *name, const char *version, const bool requestEcho)
   {
       bool result = true;
   	if (name) {
   	    result &= _sendRoute(build(_msgTmp, GATEWAY_ADDRESS, NODE_SENSOR_ID, C_INTERNAL, I_SKETCH_NAME,
   	                           requestEcho).set(name));
       }
       if (version) {
   	    wait(500);
   	    result &= _sendRoute(build(_msgTmp, GATEWAY_ADDRESS, NODE_SENSOR_ID, C_INTERNAL, I_SKETCH_VERSION,
   	                           requestEcho).set(version));
       }
       return result;
   }

   5. Make sure to include the new transport (E32) to your nodes/ gateway scketches

   #define MY_RADIO_E32

Caution

The ΕΒΥΤΕ E22-400T30D operates on 3.3v If using 5v host e.g., arduino make sure to include proper voltage conversion e.g. 2-Channel Logic Level Converter 3.3V to 5V TTL Bi-directional Module

Example

Sample files garageNode.ino and E32Gateway.ino

Tips

Make sure to include a short delay betwwen communication attemps within your node e.g.

#define SHORT_WAIT 1000
send(msg);
sleep(SHORT_WAIT);
send(msg);