When people see that it’s possible to power an STM32U0 using only a printed organic photovoltaic module from Dracula Technologies—without a battery or a USB cable connected to a PC—many will wonder how it’s even possible. After all, Arthur Clarke said it best, “Any sufficiently advanced technology is indistinguishable from magic.”
However, this is precisely what we demonstrate in the video below. Thanks to the ultra-low power consumption of the STM32U0 and the energy-harvesting capabilities of Dracula Technologies’ indoor organic photovoltaic cells, it’s possible to store enough energy in a capacitor to run an MCU application that reads data from sensors. In the demo, ST and Dracula Technologies display the sensor data on a screen and transmit it via the S2-LP (sub-1 GHz transceiver).
