ESP32 to 4-20mA Transmitter for AI Agent Skills

ESP32 to 4-20mA Transmitter for AI Agent Skills

This AI agent skill enables an ESP32 microcontroller to drive a 4-20 mA current loop, functioning as a transmitter for PLC integration, valve commands, or two-wire loops. It involves the appropriate handling of XTR116-class parts, loop power, signal isolation, and adherence to the live-zero rule for reliable system indications.

What this skill does

• Facilitates the configuration of an ESP32 device to output 4-20 mA through a current loop.
• Implements the live-zero standard where 4 mA represents zero and 20 mA represents full scale; 0 mA is detected as a fault condition.
• Provides options for below-range and above-range fault indication according to NAMUR NE43 standards.
• Supports various techniques to drive the current loop, including XTR116/XTR117 for two-wire systems, op-amp and transistor methods, and dedicated drivers for isolated long-distance applications.

Who it is for

• Developers working with AI coding agents such as Claude Code, Cursor, and Codex.
• Engineering teams focused on automation, industrial control systems, or embedded systems development.
• Technicians involved in integrating AI agent-derived signals into existing PLC frameworks.

Use cases

• Integrating AI-processed data into PLC systems for industrial automation purposes via current loop transmission.
• Controlling actuators or valves based on AI agent outcomes within a 4-20 mA loop control system.
• Ensuring signal integrity and fault detection in system monitoring applications by employing live-zero detection.

Technical details

• Utilizes agent skills compatible with Claude Code, Cursor, and Codex platforms.
• Supports XTR116/XTR117 two-wire transmitters powered by the loop itself, requiring a DAC and a resistor for operation.
• Includes practical considerations for loop compliance and voltage drop across system components.
• Accuracy is contingent upon the DAC's reference value, with an emphasis on maintaining a 1% reference accuracy in the loop.

Source & Licence

This package is built on open-source work published by Esmail-sarhadi (Esmail-sarhadi/esp32-agent-skills) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.