Waveshare QFP100 LQFP100 STM32 IC Test Socket Adapter - Easy

Our review of the Waveshare QFP100 LQFP100 adapter finds it is a practical test and programming tool for engineers and hobbyists working with STM32 MCUs in the 0.5mm QFP100 package. The single biggest reason to buy is straightforward access: it turns a delicate QFP100 STM32 into a board-ready module with accessible pins and built-in programming ports, making chip-level debugging and firmware burns far less fiddly than wiring directly to a package. For anyone who regularly prototypes or repairs STM32F1/F2/F3/F4 and STM32L1 parts, this adapter saves time and reduces risk of bent leads.

Key Features

• QFP100 compatibility: Provides a Yamaichi IC test socket for STM32 MCUs in 0.5mm pitch QFP100 packages so devices seat reliably for programming and testing.
• JTAG/SWD and USART ports: Built-in 20-pin JTAG/SWD connector and optional 4-pin USART1 interface allow direct connection to common programmers and debuggers.
• Clock support: Onboard socket for an external crystal plus a 32.768K crystal oscillator support stable system clock testing and low-power timekeeping.
• LED indicators: Two LEDs are wired through jumpers to I/O pins to provide quick visual confirmation of boot or GPIO behavior during development.
• Accessible expansion pins: All MCU pins are routed to 2.54mm pitch expansion headers so you can breadboard or wire to peripheral test fixtures easily.

Who It's For

This adapter is aimed at embedded developers, repair technicians, and makers who need an easy, repeatable way to program and test STM32 microcontrollers in QFP100 packages. It is particularly useful when working with parts from the STM32F1xxV, STM32F2xxV, STM32F3xxV, STM32F4xxV and STM32L1xxV families because pinouts compatible with these series are explicitly supported.

Users who should look elsewhere include those who never remove MCUs from production boards or who require a surface-mounted programming jig for BGA/LGA packages. It is not a drop-in replacement for custom fixtures that require nonstandard pin mapping or mechanical clamping beyond the socket.

Pros & Cons

Pros

• Reliable seating via a Yamaichi test socket makes frequent programming cycles less risky for the package leads.
• Multiple programming interfaces (JTAG/SWD and USART1) cover the most common debug and flash tools without extra wiring.
• Accessible 2.54mm expansion headers let the user probe every MCU pin or connect test circuits quickly.

Cons

• Limited to QFP100 0.5mm pitch packages, so it will not fit other QFP counts or nonstandard pinouts.
• The board is simple by design and lacks on-board level shifting or power regulation, so external power management may be required.

Specifications

Our Verdict

The Waveshare QFP100 adapter is a cost-effective, no-frills solution for anyone who needs to program and test STM32 MCUs in QFP100 packages. It offers reliable socketing, standard programming ports, and convenient pin access, making it good value for labs and individual developers who perform frequent chip-level firmware work. Choose it when you need repeatable, low-risk programming of supported STM32 parts.

Frequently Asked Questions

Does it support STM32F4 devices?
Yes, it supports STM32F4 series devices that use the QFP100 0.5mm pitch package and compatible pinout.

Can I power the MCU from the adapter?
The board exposes MCU power pins on the headers but does not include on-board power regulation, so provide a suitable external supply or regulation.

Are the LEDs assignable to other pins?
Yes, the two LEDs are connected via jumpers to I/O pins so you can reassign or remove them as needed.