 At QSA, we want to democratize rapid testing to build a healthier, more universal, more digital, more efficient healthcare ecosystem across the world. To achieve this vision, we've developed the first handheld, portable pocket-sized lateral flow reader, a device that is able to detect a disease or an infection by a simple liquid sample from a patient. With a reading time of under five seconds, our QSA readers enable us to detect and quantify low concentration analytes with high sensitivity. The journey to create this groundbreaking product has been extremely challenging, but thanks to the collaboration of our partners, we made it real. The design plan of the QSA Reader aimed to develop an affordable, handheld, lateral flow test reader with secure wireless connectivity. The device needed to be compact and robust while achieving the same performance levels as laboratory-grade readers. When ST presented the STM32 WBA series, we knew we had found the right wireless microcontroller to overcome such challenges. The Cortex-M33 core, capable of running at 100 MHz, provides the necessary processing power to run our data acquisition algorithm for spectral sensors. At the same time, the multiple low-power modes allow to shrink the battery, reducing the size and weight without compromising the number of readings per charge. The ultra-low-power radio, supporting Bluetooth low-energy protocol, allows a seamless and encrypted data transfer between the reader and a mobile phone in which the reading data will be shown through our cloud platform. The available amount of flash memory and RAM will serve not only to power the current generation of readers, but future developments like point-of-care type readers for professional use. It is also worth to mention that ST would have provided a certified Bluetooth stack and continued support by their RF expert. Those two points prove and crucial when facing stringent product certification processes like Bluetooth C qualification and IVDR for medical devices. In the coming years, people will gain greater awareness of their health, thanks to partnerships as crucial to us as ST.