ESP32 - Complex Waveform Generator V2

Setting Up The App

ESP32 Complex Waveform Generator - Arrangement for WROOM-32 or WROVER-E (DevKit-C)

# PARTS Required

• 1 - ESP32 (WROOM-32 or WROVER-32) with 16 exposed pins
• 1 - ES32 Breakout Board or equivalent pin header block
• 7 - Rotary Encoders (i.e. KY-040 Rotary Encoder Module CYT1062)
  • TODO: add >= 2 more for Elongation adjustments.
• 1 - +5VREG 1A Power Supply for ESP32 (i.e. ATX PowerSupply)
  

Installation Prerequisites

Install ESP Libraries in Arduino-IDE

ArduinoJson
ESP32Encoder
```

###

ArduinoJson
ESP32Encoder

Step 1. Open Esp32Full.ino and set Wifi Credentials
```

// #### Change Me - Local Wifi Info ####

const char *SSID = "NETGEAR";

const char *PWD = "12345678";
```

###

Step 2. Configure free local LAN  IP address

Check your Router for more information
```

// #### CHANGE ME ####

// Set your Static IP address to a free IP in your local network

IPAddress local_IP(192, 168, 1, 8);

// Set your Gateway IP address

IPAddress gateway(192, 168, 1, 1);


IPAddress subnet(255, 255, 255, 0);

IPAddress primaryDNS(8, 8, 8, 8);   //optional

IPAddress secondaryDNS(8, 8, 4, 4); //optional
```

###

Step 3. Configure ESP_HOST in Javascript File

Edit `./assets/espwavegen.js` and set the IP address used in Step 2 above.
######

TODO: Make configurable in the web interface
```

 

# Set this to the ESP32's IP address

ESP_HOST = "http://192.168.1.8";
```

Save and close the file

###

Step 4. Upload The code in `Esp32Full.ino`

Paste the code into your Arduino-IDE and upload it to your ESP32

###

Step 5. Access the WebApp in your Web Browser

Open Web Browser

Open `index.html` in the `WebApp` directory below this file
```

• File -> Open -> Browse to WebApp/index.html -> Open
  ```

Interface is now displayed!

Enjoy!!

##  Additional Troubleshooting / Customization

##### Optional: Configure alternate Output Pins
--

• Output will be on Pins D2 and D4 by default
  ```
  

// #### Output Pins ####

int pinChannel1 = 2;

int pinChannel2 = 4;
```

####

Optional: Adjust Encoder Pins if needed
```

int pulseCount_EncoderPIN1 = 14;

int pulseCount_EncoderPIN2 = 13;

int pulseWidth_EncoderPIN1 = 35;

int pulseWidth_EncoderPIN2 = 34;

int pulseSpace_EncoderPIN1 = 19;

int pulseSpace_EncoderPIN2 = 18;

int gate_freq_EncoderPIN1 = 22;

int gate_freq_EncoderPIN2 = 23;


int pulseWidthModifier_EncoderPIN1 = 27;

int pulseWidthModifier_EncoderPIN2 = 26;

int pulseSpaceModifier_EncoderPIN1 = 5;

int pulseSpaceModifier_EncoderPIN2 = 32;

int gateModifier_EncoderPIN1 = 25;

int gateModifier_EncoderPIN2 = 33;
```

ESP C+ Code

Git Repo: https://bitbucket.org/cbake6807/esp32-complex-waveform-generator/src/master/

Troubleshooting:

View the Console Log for errors in your browser while clicking the app's sliders buttons etc..

https://www.browserstack.com/guide/inspect-element-in-chrome#:~:text=One%20of%20the%20easiest%20ways,%2C%20Sources%2C%20and%20other%20tools.

Confirm the ESP is a connected host in your network and was given the IP you specified

https://www.wikihow.com/See-Who-Is-Connected-to-Your-Wireless-Network