Nice picture of colored wires but not much use to me in finding your problem. Post an annotated schematic, you will get a better answer. The L293 is an obsolete part, I recommend you start over with a part that has MOSFET outputs. This part has a a bypolar transistor in each leg causing approximately a 3V drop to the motor which is burnt as heat.
Guidelines for Effective Troubleshooting:
Posting an annotated schematic of your circuit is crucial for us to help you effectively. Your schematic should clearly show all connections, power sources, components, and ground connections. Highlight any logic wires longer than 10 inches (25 cm), and provide links to technical information for all hardware components, including motors, shields, and Arduinos. Be sure to include component values, model numbers, and details of all power supplies (e.g., USB power). Posting your code using the forum’s code tags will also be very helpful.
Why This Matters:
Many issues arise from connection or power problems that could be easily identified with a well-drawn schematic and proper technical information. Often, users without schematics spend time troubleshooting through trial and error, which can be frustrating and time-consuming. When a detailed schematic is provided, solutions are often found within a day.
Creating Schematics:
-
What to Include: Show all connections, highlight any potential issues (like long wires), and provide links to component datasheets or technical documentation. This helps us understand your setup and diagnose problems quickly.
-
Acceptable Formats: Hand-drawn schematics are fine as long as they are clear and readable. High-quality photos of your circuit can also be helpful.
-
Schematic Capture Software: Tools like KiCad are popular for creating schematics. KiCad is free and works on Linux, macOS, and Windows. It has a learning curve, but many free online resources can help you get started. KiCad also includes features like a 3D viewer and an integrated SPICE simulator for verifying designs.
Helpful Resources on Schematics:
-
What is a Schematic Diagram? What Is a Schematic Diagram?
-
How to Read a Schematic How to Read Electrical Schematics
-
How to Read a Schematic (Video) https://www.youtube.com/watch?v=4B6feSKfLxo
Tips for Using KiCad or Similar Tools:
-
Start Simple: Begin with small designs to get comfortable with the tool.
-
Customize Components: If you can’t find a specific part, edit existing components to fit your needs.
-
Verification: Use the SPICE simulator and electrical rules checker in KiCad to validate your designs.
For more information and downloads, visit KiCad's Official Site.
Providing a complete schematic with detailed technical links will make troubleshooting easier and faster, helping you find solutions efficiently. Let us know how we can assist further!