Arduino Microcontroller Development Board Leaf Maple Cortex M3 STM32 Learning Official Original version

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Introduction

The official product manuals address: http://leaflabs.com/docs/ide.html
Spot stock! Board for red heavy gold, and improved.
Corrected official mouth of external power supply design flaws, can use 4-15 v power supply.
Lithium battery manager, it is more convenient to use lithium-ion batteries
IDE burning option board type: Leaf Maple Rev 3 + to flash/RAM

The official website: www.leaflabs.com (with official details)
Maple rev5 improved 4 layer PCB
Stm32f103rbt6 arm processor architecture (M3 32-bit processor
Working frequency: 72 MHZ (arduino including mega2560 less than 20 MHZ)


Specification


Flash: 128 KB.
SRAM: 20 KB.
37 * IO.
16 the ADC.
2 way hardware SPI.
2 way hardware I2C.
Three hardware serial port.
15 a 16-bit resolution PWM output timer (4) (arduino only eight accuracy PWM).
1 lithium battery management chip used in lithium batteries.
7 channel DMA.
Maple USES the same syntax and function, and the arduino IDE used by compatible with arduino, most compatible with the arduino.
Maple development board has better performance and cost performance compared with the arduino.
DC power supply interface suggested input voltage: 4-15 VDC (16 limit: 3.4 - v).



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