https://github.com/nopnop2002/esp8266_ethernet
Example of using SPI Ethernet module with esp8266
https://github.com/nopnop2002/esp8266_ethernet
arduino enc28j60 esp8266 ethernet platformio w5100 w5500
Last synced: 3 months ago
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Example of using SPI Ethernet module with esp8266
- Host: GitHub
- URL: https://github.com/nopnop2002/esp8266_ethernet
- Owner: nopnop2002
- License: mit
- Created: 2020-05-28T08:18:03.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2024-11-26T00:43:18.000Z (7 months ago)
- Last Synced: 2025-02-27T09:12:37.163Z (4 months ago)
- Topics: arduino, enc28j60, esp8266, ethernet, platformio, w5100, w5500
- Language: C++
- Homepage:
- Size: 58.6 KB
- Stars: 44
- Watchers: 3
- Forks: 7
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# esp8266_ethernet
Example of using SPI Ethernet module with esp8266.
Arduino core for ESP8266 uses [lwip](https://savannah.nongnu.org/projects/lwip/) for TCP/IP protocol stack.
The hierarchy of programs that use WiFi is as follows:
```
+----------------+
| Application |
+----------------+
| Network Object |
+----------------+
| lwip |
+----------------+
| WiFi Driver |
+----------------+
```
Arduino Core for ESP8266 Ver3.0.2 officially supports SPI External Ethernet.
__You don't need any libraries.__
The hierarchy of programs that use Ethernet is as follows:
```
+----------------+
| Application |
+----------------+
| Network Object |
+----------------+
| lwip |
+----------------+
| Ethernet Driver|
+----------------+
```
# Hardware requiment
SPI Ethernet module using this chip.
- ENC28J60
- W5100
- W5500
# Software requiment
- Arduino core for ESP8266 __V3.0.2__ or later
You can check the Core version using ESP.getFullVersion() or ESP.getCoreVersion().
This is mine:
```
ESP.getFullVersion=SDK:2.2.2-dev(38a443e)/Core:3.0.2=30002000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:6105635
ESP.getCoreVersion=3.0.2
```
# Wireing
|SPI PHY|---|ESP8266|
|:-:|:-:|:-:|
|SCK|---|GPIO14(D5)|
|MISO|---|GPIO12(D6)|
|MOSI|---|GPIO13(D7)|
|CS|---|GPIO16(D0)(*)|
|RST|---|RESET|
|3.3V|---|3.3V|
|GND|---|GND|
(*) You can change it to any GPIO.
# Selecting the Ethernet module
- Using W5500:
```
#include
Wiznet5500lwIP eth(CSPIN);
```
- Using W5100:
```
#include
Wiznet5100lwIP eth(CSPIN);
```
- Using ENC28J60:
```
#include
ENC28J60lwIP eth(CSPIN);
```
# Using PlatformIO
```
$ git clone https://github.com/nopnop2002/esp8266_ethernet
$ cd esp8266_ethernet/connectEthernet/
$ pio init -b d1_mini
$ cp connectEthernet.ino src/
$ pio run -t upload && pio device monitor -b 115200
==================================== [SUCCESS] Took 25.50 seconds ====================================
--- Available filters and text transformations: colorize, debug, default, direct, esp8266_exception_decoder, hexlify, log2file, nocontrol, printable, send_on_enter, time
--- More details at https://bit.ly/pio-monitor-filters
--- Miniterm on /dev/ttyUSB0 115200,8,N,1 ---
--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
SDK:2.2.2-dev(38a443e)/Core:3.0.2=30002000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:6105635
connecting ethernet..
ethernet ip address: 192.168.10.128
ethernet subnetMask: 255.255.255.0
ethernet gateway: 192.168.10.1
```
# How to convert from WiFi to Ethernet
- WiFi
```
#include
const char* SSID = "ssid_of_your_router";
const char* PASSWORD = "password_of_your_router";
void setup() {
delay(1000);
Serial.begin(115200);
Serial.println();
Serial.print(ESP.getFullVersion());
Serial.println();
Serial.print("connecting wifi");
WiFi.mode(WIFI_STA);
WiFi.begin(SSID, PASSWORD);
while (1) {
uint8_t status = WiFi.status();
Serial.print("status=");
Serial.println(status);
if (status == WL_CONNECTED) break;
Serial.print(".");
delay(500);
}
Serial.println();
Serial.print("WiFi ip address: ");
Serial.println(WiFi.localIP());
Serial.print("Wifi subnetMask: ");
Serial.println(WiFi.subnetMask());
Serial.print("WiFi.gatewayIP: ");
Serial.println(WiFi.gatewayIP());
Serial.print("WiFi.dnsIP: ");
Serial.println(WiFi.dnsIP());
}
void loop() {
}
```
- Ethernet
```
#include
#include
#include
//#include
//#include
#define CSPIN 16
Wiznet5500lwIP eth(CSPIN);
//Wiznet5100lwIP eth(CSPIN);
//ENC28J60lwIP eth(CSPIN);
byte mac[] = {0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02};
void setup() {
delay(1000);
Serial.begin(115200);
Serial.println();
Serial.print(ESP.getFullVersion());
Serial.println();
SPI.begin();
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.setFrequency(4000000);
eth.setDefault(); // use ethernet for default route
int present = eth.begin(mac);
if (!present) {
Serial.println("no ethernet hardware present");
while(1);
}
Serial.print("connecting ethernet");
while (!eth.connected()) {
Serial.print(".");
delay(1000);
}
Serial.println();
Serial.print("ethernet ip address: ");
Serial.println(eth.localIP());
Serial.print("ethernet subnetMask: ");
Serial.println(eth.subnetMask());
Serial.print("ethernet gateway: ");
Serial.println(eth.gatewayIP());
}
void loop() {
}
```
# WiFi examples
https://github.com/esp8266/Arduino/tree/master/libraries/ESP8266WiFi/examples