Seeeduino Lotus Cortex-M0+ is an ATMEGA SAM D21 Microcontroller development board. The Atmel® | SMART™ SAM D21 is a series of low-power microcontrollers using the 32-bit ARM® Cortex®-M0+ processor with 256KB Flash and 32KB of SRAM. you can consider the Seeeduino Lotus Cortex-M0+ as a combination of Seeeduino and Base Shield.
Seeeduino Lotus Cortex-M0+ has 14 digital input/outputs (10 of which support PWM) and 6 analog input/outputs, 3 Serial Communication Interface, a micro USB connector, a JST2.0 Li-Po connector, an ICSP header, 12 Grove connectors, a reset button.
Seeeduino Lotus Cortex-M0+ is an upgraded version of Seeeduino Lotus V1.1, it replaces a more powerful chip, optimizes the circuit layout, and the power supply is more stable. Because this chip supports direct USB level output, there is no need to use a serial port to USB chip, like CP2102N. Therefore, one more hardware serial port is available to the user.
All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise the CPU may be damaged.
Seeeduino Lotus Cortex-M0+
This is the wiki page for this product, which will show you how to use the product, as well as details about the software and hardware.
The Seeeduino Lotus Cortex-M0+ SKU 102010228 Seeduino Lotus Cortex-M0+ has a SDW lable. What is this connection set used for?Question by: Alex Bruski on 2019-02-27 20:16:11
Hi Alex, Sorry, do you mean SWD? I do'n found the SDW lable. If you mean SWD, it's a interface for burn the firmware. RegardsAnswer by: admin on 2019-02-28 09:27:19
Can I connect a solar panel for charging? What input voltage range?Question by: Matt on 2019-02-27 19:17:14
Hi Matt, yes, you can use the solar panel for power supply. You can find the input votage range in the Learn Tab -- wiki. It's 3.5V to 4.2V. And please pay attention that, if you use a solar panel to charge this board, do not plug the micro-USB at the same time. Otherwise,the usb port will charge the solar panel, it may damage your solar pannel.Answer by: admin on 2019-02-28 10:44:01
If you need to use the solar panel, you need to use DC-DC module to conver the input voltage to 3.3V before you plug it into the JST2.0 port. The Vsys can not over 4,4V.Answer by: admin on 2019-03-01 09:31:40