https://github.com/namnamiot/esp32_canopus
Example for Modbus RTU, Modbus TCP/IP, MQTT run in ESP32 Canopus board
https://github.com/namnamiot/esp32_canopus
esp32 ethernet hardware iot lan8720a modbus modbus-master modbus-rtu modbus-slave modbus-tcp wifi
Last synced: about 1 year ago
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Example for Modbus RTU, Modbus TCP/IP, MQTT run in ESP32 Canopus board
- Host: GitHub
- URL: https://github.com/namnamiot/esp32_canopus
- Owner: NamNamIoT
- Created: 2023-03-14T18:17:37.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2024-06-10T03:37:43.000Z (about 2 years ago)
- Last Synced: 2025-04-06T04:09:15.697Z (about 1 year ago)
- Topics: esp32, ethernet, hardware, iot, lan8720a, modbus, modbus-master, modbus-rtu, modbus-slave, modbus-tcp, wifi
- Language: C++
- Homepage: https://canopus-iot.com/
- Size: 99.6 KB
- Stars: 1
- Watchers: 1
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
Awesome Lists containing this project
README
# ESP32_Canopus Module Quick Start Guide
## ✌️✌️ Welcome! ✌️✌️
Hi, im Namnam 🕴🏼.
Please contact me if you need to develop ioT products.
### Information ESP32_Canopus board
#### 🕵🏻♀️Version 1.0
| **Object** | **Detail conponent** | **Note** |
| ----------------- | ------------------------------ | ----------------------|
| Power | MC34063A | 5-35VDC |
| Ethernet | LAN8720A (RJ45: HR911105A) | - |
| RS485 | SP485EE | Serial2, auto DERE |
| I2C | - | SDA = IO33, SCL = IO4 |
| Led blue | - | PIN IO15 |
| Led yellow | - | PIN IO2 |
| Button | - | PIN IO36 |
| ESP32 | ESP32 WROOM 32D | - |
| Case | Plastic | Mount dinrail |
#### 🧑🏻🔧 Hardware Setup
-Cable USB type C for power and upload code.
-Power 5-24VDC.
There's really no need because we used 5V power via type C cable.
Both type C cable and power supply via terminal can be connected at the same time.
-Cable ethernet, Use for ethernet demos.
#### 🧑🏼💻 Software Setup
+Install IDE arduino. Follow [this](https://support.arduino.cc/hc/en-us/articles/360019833020-Download-and-install-Arduino-IDE), skip if you done.
##### ⚠️ WARNING: Install in Document folder.
+Install driver CH340. Follow [this](https://electropeak.com/learn/how-to-install-ch340-driver/), skip if you done.
+Install ESP32 in manager board:
- Down load this folder: [hardware](https://mega.nz/file/e3wlwIAI#vFoR5nT5x3zT5wkQSVknqihluzf_9Ng89H5CxPmu3Io)
- Extract at ...\Documents\Arduino. Ex my computer: C:\Users\NamPC\Documents\Arduino
- Go to ...\Documents\Arduino\hardware\espressif\esp32\tools
- Click get and gen:
+ Check it in IDE:
## At here , you are ready 👌 to execute the sample code for the ESP32_CANOPUS board
#### ⚠️ WARNING: Prepare yourself a cup of coffee ☕☕☕, because the next is a fascinating journey with Canopus board 🤪.
You will be stronger after working through the next 12 examples.
#### [Blink led](#Blink)
#### [Read modbus slave via RTU](#Modbus_Slave)
Read modbus slave via TCP/IP
Serve master RTU
Serve master TCP/IP
Auto switch WiFi-Ethernet
Auto switch many WiFi in list
Push value modbus to MQTT
On/off led via MQTT
FOTA - update firmware via Internet with FTP
WATCHDOG timmer
Deep sleep
#### Blink
```c
#define LED_YELLOW 2 //Pin led color yellow is IO2
void setup() {
// initialize digital pin LED_YELLOW as an output.
pinMode(LED_YELLOW, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_YELLOW, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_YELLOW, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
```
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### Modbus_Slave
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 3. Read modbus slave via TCP/IP
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 4. Serve master RTU (board is slave)
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 5. Serve master TCP/IP (board is slave)
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 6. Auto switch WiFi-Ethernet
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 7. Auto switch many WiFi in list
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 8. Push value modbus to MQTT
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 9. On/off led via MQTT
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 10. FOTA - update firmware via Internet with FTP
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 11. WATCHDOG timmer
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)
#### 12. Deep sleep
You can find it in examples: [Download](https://github.com/NamNamIoT/ESP32_CANOPUS/tree/master/examples)