ATmega32U4 and ATmega16U4 are both MCU from Atmel Corporation (now a part of Microchip Technology), which are based on the AVR architecture. They are similar in many ways, but there are some distinctions between the two. The ATmega32U4 is an
How to Wire the NRF52 Series (nRF52840) Multi Protocol Bluetooth / BLE 5, SOC
NRF52 Series Multiprotocol Bluetooth 5.3 SoC supporting Bluetooth Low Energy, Bluetooth mesh, NFC, Thread and Zigbee The most sophisticated model in the nRF52 Series is the nRF52840 SoC. It overcomes the difficulties posed by complex applications that demand protocol concurrency