ESP8266 WiFi gateway port for MySensors

[scalz]

@hek : cool so you think it could be useful too.
yes I use this lib, nice features and simple to use.
so, even if someone has already done something, maybe I will dig a little for fun, time to time...

[hek]

I haven't done anything yet. The old head is just constantly spinning ideas you know ;)

So please go ahead and see if you can create a MyGatewayTransportWebsocket.cpp

[ErrK]

@scalz @hek you can look at socket.io if you are thinking of using websockets.

[hek]

@ErrK said:

socket.io

Yep, use it on my dayjob. Allows downgrade to polling which (I guess) the Arduino library doesn't support. Might be better to use raw websocket on the server side in this case.

[scalz]

@ErrK : yes I saw it too. but here a discussion about socket.io with esp websockets https://github.com/Links2004/arduinoWebSockets/issues/42
very interesting ;)

[Yveaux]

@scalz @hek a local server on the ESP serving gateway status overview (connected clients, routing table, sensors presented by clients, data etc) would be a very nice addition to any gateway IMHO.
The ESP has enough power/flash to implement this.

[ErrK]

@hek: Yes, it has fallbacks to use other protocols. I think there is a setting if you don't want to use all the default protocols.
@scalz: interesting discussion. It looks like the best way shuld be to only use the websockets :)

[scalz]

@Yveaux: exactly what I was thinking ;) for monitoring :) and it could be fun to be able to show something on the phone without a controller (for instance when I visit my not geek friends, it looks more simple if something on the phone instead of setting up a controller).
I started to look at dev branch last night but was too tired.... I visualize where are the changes to do, but maybe not all, I will ask you if I have some problems ;) A cool thing in websocket lib is broadcasting client is already implemented in it.

[A R]

Hi,
I am working on a sensor system. Sensors feed to ESP8266 which feed to NodeMCU ESP8266. I saw in the intro to GatewayESP8266.ino on GitHub your code which says:

• The EthernetGateway sends data received from sensors to the WiFi link.
• The gateway also accepts input on ethernet interface, which is then sent out to the radio network.

Does that mean Ethernet Gateway receiving data from WiFi?
Thanking you in anticipation.
Riaz Ahmed

[Yveaux]

@A-R said:

Does that mean Ethernet Gateway receiving data from WiFi?

As the topic indicates this is a WiFi gateway for mysensors. That means that it converts sensor data from the MySensors network to WiFi and vice versa.
When sending data to a sensor, a controller will send data over WiFi to the gateway, which then sends the data on to a MySensors sensor (using nRF24L01+ or RFM69HW radio).
Seen from the controller, it will communicate to the WiFi gateway exactly the same way as it would when connecting to a wired ethernet gateway.

[A R]

@Yveaux Thanks for the reply. Let me elaborate please. My sensor sends data to ESP8266 which sends it to NodeMCU ESP8266. From there I want the NodeMCU ESP8266 to send data through a wired Ethernet. (from there i want it be sent to a router).

So my question is can the GatewayESP8266.ino be used to send data from NodeMCU to Ethernet?

[Yveaux]

@A-R said:

can the GatewayESP8266.ino be used to send data from NodeMCU to Ethernet?

How do you plan to connect the wired ethernet to the NodeMCU board?
You could probably connect a W5100 module through SPI, but why bother?

[A R]

@Yveaux I am using W5100. Its a system requirement. I want wifi connectivity with sensors through ESPs but the final data is to be routed through ethernet for security.

[Yveaux]

@A-R But do you use any MySensors parts then?

[A R]

@Yveaux No. I asked a simple question: can the GatewayESP8266.ino be used to send data from NodeMCU to Ethernet? If you have an answer then do reply.

[Yveaux]

@A-R No need to get all grumpy! I'm just trying to understand what you want to achieve, and help you out.
You are posting to a MySensors forum, so I assumed you are using MySensors software in your project.
Answer to your question: No.

[scalz]

@A-R : it depends of what you are connecting to esp8266, you didn't give details. esp8266 lacks of io, so it depends...I think you have not googled?? esp8266 w5100 for instance, you will find things...then if it is to use radio+w5100 with esp8266, sure it's possible but depends of available io...software spi you would have to double io, hardware spi, need manage your cs lines...some work. If it's just esp8266+w5100 there are already things on google...

[Robban]

@rapzak said:

Hi,

I have added som support, where the gateway can upload data to emoncms, transparant to other functions (not fully testet):

in gatewayutil add this in top of file, after the ARDUINO check:

#define EMONCMS

#ifdef EMONCMS
static WiFiClient emon_client;
const char* emon_host = "emoncms.org";  
const int emon_httpPort = 80; 
const int emon_addr_offset = 10;
#endif

---

Change this function to:

void incomingMessage(const MyMessage &message) {
//  if (mGetCommand(message) == C_PRESENTATION && inclusionMode) {
//	gw.rxBlink(3);
//   } else {
//	gw.rxBlink(1);
//   }
   // Pass along the message from sensors to serial line
   serial(PSTR("%d;%d;%d;%d;%d;%s\n"),message.sender, message.sensor, mGetCommand(message), mGetAck(message), message.type, message.getString(convBuf));
#ifdef EMONCMS
     if (!emon_client.connect(emon_host, emon_httpPort)) {
      Serial.println("emoncms connection failed");
      }

      emon_client.print(String("GET /emoncms/input/post.json?&node="+ String(message.sender+emon_addr_offset)+"&json={"+String(message.sensor)+":"+message.getString(convBuf)+"}&apikey=XXXXXXXXXXXXXXXXXXXXXXXXXXXX\r\n"));
      Serial.println(String("GET /emoncms/input/post.json?&node="+ String(message.sender+emon_addr_offset)+"&json={"+String(message.sensor)+":"+message.getString(convBuf)+"}&apikey=XXXXXXXXXXXXXXXXXXXXXXXXXXXX\r\n"));
#endif
} 

It will upload data with NODE ID and Sensor ID from the network, with an offset of emon_addr_offset...

/Rapzak

Are there any one that can help me implement this in the dev version? Have a nodemcu 1-0 and got errors uploading the 1.5 version so i cant use that. Tried to fix it but ended up with the dev version.

[bkenobi]

Can anyone provide the correct wiring for NodeMCU (ESP-12E) to RFM69HW? I have seen several different guides that show connections for RFM69, but there are several different patterns and none have worked so far. Perhaps I didn't get it right, but this is what I've seen and tried:

someburner/esp-rfm69

RFM69->	ESP-12E
MISO	GPIO12
MOSI	GPIO13
SCK		GPIO14
CS/SS	GPIO15
DIO0	GPIO5
VCC		3V3
GND		GND
ANA		<antenna>

halburd/NodeMCU-Gateway

RFM69->	NodeMCU
NSS		GPIO2 (J2P5)
SCK		SCK (J1P9)
MISO	MISO (J1P8)
MOSI	MOSI (J1P6)
DIO0	SS (J1P7)
VCC		3V3
GND		GND
ANA		<antenna>

I've also determined that the following should also be correct, though again, they all don't match.

RFM69	ESP-12E	WEMOS D1	NodeMCUv3
MISO	GPIO12	D6/D12		D6
MOSI	GPIO13	D7/D11		D7
SCK		GPIO14	D5/D13		D5
CS/SS	GPIO15	D10			D8
DIO0	GPIO5	D3/D15		D1

I've also tried to figure out how to use the nRF24L0+ wiring, but that doesn't quite match either. If someone could simply post a working config, I could get some traction on my project.

[bkenobi]

Looking at the different charts, I've located some errors (I think).

Looking at someburner's setup, it looks like he is opting to use software SPI rather than hardware as the ESP pins for SPI are not on GPIO12-15.

Looking at halburd's code, it appears that he's opted to use GPIO2 for slave select and connect the actual SS to DIO0. I'm not clear why this is done, but it seems odd.

I lost the reference to the last chart. It also uses GPIO's for SPI rather than the built-in hardware SPI. The guide in this sketch is only documented for nRF24L01+, so it doesn't match exactly. But, it also uses GPIO 4, 12, 13, 14, 15. It seems odd to use those rather than the SPI pins.