Quantum magnetometry is a promising technology for sensitive magnetic field sensing that has a wide range of applications. Unfortunately, this technology is very cost-intensive and size-limiting in many real-world applications. Consequently, this pioneering technology has found little use outside the lab. The aim of this research is to create a compact and fully integrated quantum magnetometer based on nitrogen-vacancy centers in diamond microcrystals that will allow for the commercialization of quantum magnetometers. Due to recent strides in the field of quantum magnetometry, integrated quantum sensors can be miniaturized to a degree that would allow them to be viable in applications they were not previously. Our approach is to integrate our quantum magnetometer onto a PCB in the form of a modular Arduino R4 UNO shield that allows it to be easily implemented into many systems. We aim to do this by replacing external signal processing hardware required with current systems with sequential Bayesian estimation code run on IOT devices. The sensor and required signal processing components for the sensor are integrated into a single PCB board that can be attached to the Arduino as a module. Through our research, we have found that an Arduino R4 UNO has the voltage generation and acquisition capacity to support a PCB-based quantum magnetometer.