He wanted to improve on the design though, making a smaller unit with a greatly reduced bill-of-materials and with a more streamlined design, so he came up with this STM32-based oscilloscope.

Deciding to go for a full digital design for the circuitry, the peripheral is based off of a MEMS microphone and an STM32 microcontroller doing the heavy lifting between it and a USB connection.

Highly integrated in a 32-lead LGA package, the module is ready to place on the board and permits simple, low-cost PCB designs with as few as two layers. The ST67W611M1 leverages the STM32 ecosystem, ...