NuMaker-M253LEB

NuMicro® M253LE3BE used as main microcontroller with function downward compatible with:
  - M253LD3BE
  - M253ZE3BE
M253LE3BE full pins extension connectors
Arduino UNO compatible extension connectors
Ammeter connector for measuring the microcontroller’s power consumption
Fixable board power supply
  - External VDD power connector
  - Arduino UNO compatible extension connector Vin
  - USB FS power connector on M253LE3BE platform
  - ICE USB connector on Nu-Link2-Me
On-board Nu-Link2-Me debugger and programmer
  - Debug through SWD interface
  - On-line /off-line programming
  - Virtual COM port function