Product Review
The Board is composed of three main blocks: Microchip ATSAMD21 MCU based on an Arm Cortex-M0+ processor u-blox NINA-W10 series low power 2.4GHz IEEE 802.11 b/g/n Wi-Fi ECC508 CryptoAuthentication The design includes a Li-Po charging circuit that allows Arduino MKR WiFi 1010 to run on battery power or external 5V, charging the Li-Po battery while running on external power. Switching from one source to the other is done automatically. Microcontroller Microchip ATSAMD21 (Arm Cortex-M0+ processor) WiFi u-blox NINA‑W102 (ESP32) Board Power Supply (USB/VIN) 5V Supported Battery(*) Li-Po single cell, 3.7V, 700mAh Minimum Circuit Operating Voltage 3.3V Digital I/O Pins 8 UART 1 SPI 1 I2C 1 I2S 1 Connectivity WiFi, BLE