Baite Maple Mini Clone

STM32F103C8T6


Board

NameBaite Maple Mini Clone
PartBTE14-07A
BrandBaite
OriginChina

Microcontroller

PartSTM32F103C8T6
ManufacturerST-Microelectronics
CoreArm Cortex-M3
Max. Clock Speed72MHz
PackageLQFP 48 pins

Internal memories

FLASH64KiB
SRAM20KiB

Oscillators

HSI8MHz
LSI40kHz
HSE8MHz
LSENone

Power

Sources
Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
USB connector (+5V)
VDDA pinNo
VSSA pinNo
VREF- pinNo
VREF+ pinNo
Backup batteryPin

Regulator

ManufacturerAdvanced Monolithic Systems Inc.
PartAMS1117 (AMS1117)
PackageSOT223 3 pins
Input+4.6V to +15V
Output+3.3V @ 1A
DatasheetAMS1117.pdf

PCB

ColorGreen
Size (w x l)18mm x 50mm
MountingBreadboard

Remarks

  • Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.
  • Note: The user button is also connected the the BOOT0 pin. This means that this button should be pressed when flashing the microcontroller.
  • Trivia: This board is a clone of the official Maple Mini originally made by Leaflabs. The originial Maple Mini was designed to be used with the standard Arduino IDE. The official Maple products are no longer supported. The software has since been forked and is maintained under the STM32duino flag, supporting more boards than the original Maple project.

Pictures

Baite Maple Mini Clone: Perspective view
Baite Maple Mini Clone: Perspective view
Baite Maple Mini Clone: Top view
Baite Maple Mini Clone: Top view
Baite Maple Mini Clone: Bottom view
Baite Maple Mini Clone: Bottom view

Outputs

Devices

None

Inputs & outputs


Reset button

Name reset
Reference -
Type Button
Connected to NRST
Mode Active low

User button

Name but=32
Reference -
Type Button
Connected to BOOT0 and PB8
Mode Active high

User LED

Name d1=33
Reference -
Type LED
Connected to PB1
Mode Source

Connectors & headers


Header 1 properties

Name Unknown
Reference None
Type pin header (2.54mm, 20x1, male)

Header 1 pins

# Name Function Connected to
1 Vcc - +3.3V rail
2 GND - Ground plane
3 Vbat - VBAT
4 14 - PC13
5 13 - PC14
6 12 - PC15
7 reset - NRST
8 11 - PA0
9 10 - PA1
10 9 - PA2
11 8 - PA3
12 7 - PA4
13 6 - PA5
14 5 - PA6
15 4 - PA7
16 3 - PB0
17 2 - PB2
18 1 - PB10
19 0 - PB11
20 vin - +5V input rail

Header 2 properties

Name Unknown
Reference None
Type pin header (2.54mm, 20x1, male)

Header 2 pins

# Name Function Connected to
1 Vcc - +3.3V rail
2 GND - Ground plane
3 but - PB8
4 15 - PB7
5 16 - PB6
6 17 - PB5
7 18 - PB4
8 19 - PB3
9 20 - PA15
10 21 - PA14
11 22 - PA13
12 23 - PA12
13 24 - PA11
14 25 - PA10
15 26 - PA9
16 27 - PA8
17 28 - PB15
18 29 - PB14
19 30 - PB13
20 31 - PB12

USB connector properties

Name USB
Reference None
Type USB Micro

USB connector pins

# Name Function Connected to
1 - VCC +5V input rail
2 - D- PA11
3 - D+ PA12
4 - ID N.C.
5 - GND Ground plane