Datasheet

Charge Current=
~256mA (1000V/3900)
SJ1 allows disconnection
of the power LED indicator.
(For power saving.)
VIN must be 4.5-6.0V, if
battery charger is used
ATSAMD21G18
VDD Range: 1.62-3.63V
Based on:
Arduino Zero by Arduino.cc
Arduino M0 by Arduino.org
AP2112K-3.3V
----------------
Iout (max): 600mA
Vin (max): 6.5V
Vdrop (max): 250mV
Iq: 55uA
USB Host/Device Control
-----------------------------
- USB_ID High: Y high, Q1 off
- USB_ID Low: Y low, Q1 on
- Set USB_HOST_EN low to turn Q1
on and route power OUT the board.
- USB_HOST_EN floating or HIGH
turns Q1 off. USB supply flows
through Q1 body diode.
VBAT: 3.6-4.2V
Single cell LiPo battery only!
32.768kHz
ATSAMD21G-A
GND
0.1uF 0.1uF
0.1uF
0.1uF
10K
3.3V3.3V
GNDGND FB - 30Ohm
GND
3.3V
15pF
15pF
GND
3.3V
GND
GND
GND
3.3V
GND GND
3.3V
RED
330 330
3.3V
GND
GND
BLUE
2.2uF
2N7002PW
3.3V
CORTEX_DEBUGPTH
3.3V
GND
500mA
74AHC1G125
100k
GND
330
2.5A/30V
47K
GREEN
330
3.3V
Yellow
330
3.3V
PWR-LED
GND
POWER_JACKPTH
GND
0.1uF
GND
2.2UF
GND
MCP73831
GND
GND
3.9K
GND
Yellow
330
PROG
GND
4.7uF
GND
4.7uF
GND
VUSB
BAT20J
VIN
VIN
VIN
VUSB3.3V
VIN
100k
GND
VIN
VIN
W25Q32FV
0.1uF
3.3V
3.3V
GND GND
0.1uF
3.3V
GND
3.3V
GND
GND
3.3V
Y1
GNDANA
5
PA00(XIN32/SER1:0/TC2:0)
1
PA01(XOUT32/SER1:1/TC2:1)
2
PA02(AIN0/DAC)
3
PA03(AIN1/REFA)
4
PA06(AIN6/SER0:2/TC1:0)
11
VDDANA
6
PB08(AIN2/SER4:0/TC4:0)
7
PB09(AIN3/SER4:1/TC4:1)
8
PA04(AIN4/REFB/SER0:0/TC0:0)
9
PA05(AIN5/SER0:1/TC0:1)
10
PA07(AIN7/SER0:3/TC1:1)
12
PA08(I2C/AIN16/SER0:0+)
13
PA10(AIN18/SER0:2+)
15
PA09(I2C/AIN17/SER0:1+)
14
PA11(AIN19/SER0:3+)
16
VDDIO
17
GND
18
PB11(SER4:3+)
20
PB10(SER4:2+)
19
PA12(I2C/SER2:0+)
21
PA13(I2C/SER2:1+)
22
PA14(XIN/SER2:2+)
23
PA15(XOUT/SER2:3+)
24
PA16(I2C/SER1:0+)
25
PA17(I2C/SER1:1+)
26
PA18(SER1:2+)
27
PA19(SER1:3+)
28
PA20(SER5:2+)
29
PA21(SER5:3+)
30
PA22(I2C/SER3:0+)
31
PA23(I2C/SER3:0+)
32
PA24(SER3:2+)
33
PA25(SER3:3+)
34
GND
35
VDDIO
36
PB22(SER5:2+)
37
PB23(SER5:3+)
38
PA27
39
RESET
40
PA28
41
GND
42
VDDCORE
43
PA30(SWCLK/SER1:2+)
45
VDDIN
44
PA31(SWDIO/SER1:3+)
46
PB02(AIN10/SER5:0)
47
PB03(AIN11/SER5:1)
48
U4
C8 C10
C6
C11
R11
L1
C9 C7
IN
GND
OUT
EN
NC
U3
D3
R7 R8
D4
C5
Q2
VCC
1
GND
3
GND
5
KEY
7
GNDDTCT
9
NRESET
10
NC/TDI
8
SWO/TDO
6
SWDCLK/TCK
4
SWDIO/TMS
2
JP6
F1
/OE
1
A
2
GND
3
VCC
5
Y
4
U2
R4R2
Q1
R5
D5
R9
D6
R10
SJ1
D0
D1
D2
*D3
D4
*D5
*D6
D7
D8
*D9
*D10
*D11
D12
D13
A0
A1
A2
A3
A4
A5
VIN
RESET
5V
AREF
GND
GND
GND
3.3V
IOREF
SDA
SCL
VCC
MISO
MOSI
SCK
RESET
GND
JP3
C12
C1
VIN
4
STAT
1
VBAT
3
PROG
5
VSS
2
U1
R1
D2
R6
R3
C2
C4
D1
R12
CS
1
HOLD(D3)
7
WP(D2)
3
GND
4
SCK
6
SI(D0)
5
SO(D1)
2
VCC
8
U5
C13
VDD VSS
DI
DO
C14
1
2
1
2
3
4
D+
D-
VBUS
GND
ID
SHIELD*10
3.3V
RESET
RESET
RESET
RESET
USB_D+
USB_D+
USB_D-
USB_D-
D1/TXO
D1/TXO
D0/RXI
D0/RXI
D4
D4
D3
D3
D2
D2
D5
D5
D6
D6
D7
D7
D8
D8
D9
D9
A3
A3
A2
A2
A1
A1
A0
A0
D12
D12
D11
D11
SDA
SDA
SDA
SCL
SCL
SCL
USB_ID
USB_HOST_EN
USB_HOST_EN
RX_LED/SWDIO
RX_LED/SWDIO
RX_LED/SWDIO
RX_LED/SWDIO
TX_LED
TX_LED
AREF
AREF
A4
A4
A5
A5
SPI_MISO
SPI_MISO
SPI_MOSI
SPI_MOSI
SPI_SCK
SPI_SCK
D10
D10
D13
D13
D13
VBAT
CHG_STAT
CHG_STAT
FLASH_MOSI
FLASH_MOSI
FLASH_SCK
FLASH_SCK
FLASH_MISO
FLASH_MISO
FLASH_CS
FLASH_CS
LED/SWCLK
LED/SWCLK
LED/SWCLK
USB / Voltage Regulator LEDs!!!
Cortex Debug/
Program Connector
Arduino R3 Headers
ATSAMD21G
Mike Hord
v10
Battery Input & Charge
QWIIC Connector
WS2812 LED
Flash Memory
Released under the Creative Commons
Attribution Share-Alike 4.0 License
https://creativecommons.org/licenses/by-sa/4.0/
Design by:
RGB
WS28x1
USB
Original SAMD21 Dev Board by Jim Lindblom