The ESP32 Programming Jig is a high-performance test fixture and development programmer designed to simplify flashing firmware onto surface-mount ESP32 Wi-Fi + Bluetooth modules. Micro-USB / Type-C USB port for power delivery and serial data communication.
The ESP32 Programming Jig is a high-performance test fixture and development programmer designed to simplify flashing firmware onto surface-mount ESP32 Wi-Fi + Bluetooth modules. Featuring durable spring-loaded pogo pins, this fixture securely holds bare ESP32 chips (such as ESP-WROOM-32, ESP32-S, and ESP32-WROVER) in place without requiring permanent soldering or tedious jumper wire setups.
Built with an onboard USB-to-UART serial bridge IC (CP2102/CH340) and automatic bootloader control circuitry, the jig automatically toggles GPIO0 and EN/RST lines during firmware upload. This enables seamless, single-click flashing directly from the Arduino IDE, ESP-IDF, PlatformIO, or NodeMCU Flasher. Dedicated tactile switches for manual Reset (EN) and Boot (IO0) selection are also provided for manual debugging.
Equipped with a Micro-USB / Type-C interface and an onboard 3.3V voltage regulator, the board delivers steady, high-current power required during intensive Wi-Fi and Bluetooth transmission. All ESP32 GPIO pins are broken out to standard 2.54mm pitch dual-row headers, making it fully compatible with ESP32 modules, Arduino IDE, ESP-IDF, and custom IoT prototyping setups.
| Core USB-UART IC | CP2102 / CH340 USB-to-Serial TTL Converter |
|---|---|
| Supported Modules | ESP-WROOM-32, ESP32-S, ESP32-WROVER, and compatible 38-pin/30-pin ESP32 boards |
| Auto-Download Logic | Integrated automatic boot/reset circuit (GPIO0 and EN auto-programming) |
| Power Supply | High-current 3.3V LDO regulator optimized for Wi-Fi/Bluetooth power spikes |
| Interface | Micro-USB / Type-C USB port for power delivery and serial data communication |
| Pin Breakout | Dual-row standard 2.54mm pitch headers exposing all ESP32 GPIO pins |
| Onboard Controls | Tactile Reset (EN) and Boot (IO0) buttons for manual control |
| Status Indicators | Onboard Power (PWR) and Serial Transmission (TX/RX) LEDs |
What is the operating voltage?
High-current 3.3V LDO regulator optimized for Wi-Fi/Bluetooth power spikes.
Which interface does it use?
Micro-USB / Type-C USB port for power delivery and serial data communication.
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, NodeMCU projects.
Can I buy the ESP32 Programming Jig in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
