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ESP32-WROOM Programming Jig (Test Fixture / Flashing Jig)

Description:

The ESP32-WROOM Programming Jig is a specialized tool designed for quickly flashing firmware and testing ESP32-WROOM modules (such as ESP32-WROOM-32, WROOM-32D, WROOM-32U, etc.) without soldering. It serves as a pogo-pin-based test fixture that allows for secure, temporary contact with the module's pads, making it ideal for low-volume production, development, or repair workflows.

Simply place the ESP32-WROOM module onto the jig and apply gentle pressure to establish contact with the key programming pins (EN, IO0, TX, RX, GND, and 3.3V). This enables fast and repeatable flashing or functional testing without permanent connections.

Features:

• Designed for ESP32-WROOM modules (standard 38-pad layout)

• Spring-loaded pogo pins for reliable temporary connection

• Access to key signals: TX, RX, EN, IO0, GND, 3.3V, etc.

• Typically includes a CP2102/CH340 USB-to-Serial converter onboard or external

• Pushbuttons for EN (Reset) and IO0 (Boot) control

• Useful for:

  • Firmware flashing

  • Prototype testing

  • Quality control in small-batch production

Specifications:

• Compatible with: ESP32-WROOM-32, WROOM-32D, WROOM-32U, and similar modules

• Power Input: 5V via USB (internally regulated to 3.3V)

• USB interface: Micro USB or Type-C (depends on model)

• Interface: UART (TX/RX) + GPIO control (EN/IO0)

• Jig Dimensions: Varies (~60mm x 40mm typical)

Applications:

• Quick and solder-free firmware uploading

• Functional testing during PCB assembly or repair

• Ideal for developers, QA teams, and hobbyists

• Time-saving tool for batch programming