Seeeduino Lotus Cortex-M0+ ATSAMD21 Development Board

The Seeeduino Lotus Cortex-M0+ is an advanced SAM D21 microcontroller development board that seamlessly combines the functionality of a Seeeduino and a Base Shield into a single, powerful unit. At its core is the Atmel SMART SAM D21, a low-power microcontroller featuring a 32-bit ARM Cortex-M0+ processor running at 48MHz, supported by 256KB of Flash and 32KB of SRAM.

This board is an upgraded version of the Seeeduino Lotus V1.1, featuring a more powerful chip, an optimised circuit layout, and significantly improved power supply stability. A key advantage is its native USB support; the chip handles USB communication directly, eliminating the need for a separate serial-to-USB chip like the CP2102N. This design frees up an additional hardware serial port for user projects.

Key Features & Specifications

• Microcontroller: ATSAMD21 (ARM Cortex-M0+ 32-bit, 48MHz)
• I/O Pins: 14 digital input/outputs (with 10 supporting PWM) and 6 analogue input/outputs.
• Connectivity: 3 Serial Communication Interfaces, a micro USB connector, and an ICSP header.
• Integrated Grove System: Features 12 on-board Grove connectors for easy plug-and-play connection to a vast ecosystem of sensors, actuators, and displays without soldering or complex wiring.
• Flexible Power: Supports advanced power path management, allowing operation via micro-USB or an external Li-Po battery connected via the integrated JST2.0 connector.
• Charging: Capable of a 2A maximum charging current for connected batteries.
• Low Power Design: The efficient Cortex-M0+ core and power management make it ideal for battery-operated and low-power applications.

Fully compatible with the Arduino UNO form factor and IDE, the Seeeduino Lotus Cortex-M0+ is the perfect platform for prototyping IoT devices, wearable technology, robotics, and any project requiring robust connectivity, efficient power management,