ESP32 Programming Jig | Best Programmer for ESP32 Modules  

The ESP32 WROOM Programming Jig is a dedicated development and flashing fixture designed to simplify programming, testing, and debugging of ESP32-WROOM modules. It provides a stable socket-style interface that eliminates the need for repeated soldering and desoldering during firmware development. The jig exposes all essential GPIOs, power pins, and communication lines, making it ideal for rapid prototyping, production testing, and educational use.

Technical Specifications:

• Compatible module: ESP32-WROOM series
• Power input: 5V via Micro USB
• On-board voltage regulation: 5V to 3.3V
• Programming interface: UART (TXD, RXD)
• Control buttons: RESET, PROG (BOOT)
• Switch: Power ON/OFF
• Pin access: GPIOs, EN, IO0, IO2, IO15, IO34–IO35, IO32–IO33, IO25–IO27, IO14, IO12, IO16–IO23, IO4–IO5
• Dimensions: Approx. 5 cm × 4.5 cm
• Mounting: Screw holes for stable fixing
• Connector type: Header pin contacts for ESP32 module

Features:

• Tool-free programming without soldering
• Easy access to all major ESP32 GPIO pins
• Dedicated RESET and PROG buttons for flashing mode
• On-board power regulation for safe operation
• Compact and sturdy design for repeated use
• Suitable for both development and production environments

Applications:

• ESP32 firmware development and debugging
• Rapid prototyping and testing
• Manufacturing and batch programming
• Educational and training labs
• IoT product development and validation