Over the years, we were fortunate enough to be involved in several wireless sensor network projects in real world applications. These boards were custom boards derived from our Mini Ultra 8 MHz, Mini Ultra 8 MHz Plus and also an unreleased Mega2560 variant. On top of that, different battery chemistry, secondary power source, and different radio technology were used. Based on these iterations, we refined our design and put them forward in a new board named Mini Ultra Pro. The Mini Ultra Pro is an Arduino Zero compatible board that is ultra low power targeted at wireless sensor network (ah come on, that IoT term bore us) applications. As much as we love our ATMega328P based design, we wanted something more powerful and more peripherals than that. Running out of program flash, RAM, serial port and other resources half way through our project development is not a pleasant experience especially when time is the biggest constraint. Read more