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Samd21g midi tool

newdigate·samd21g-midi-tool·hardware/MKRZero_V5.0.kicad_pcb

Samd21g midi tool PCB layout, top view — open source Microchip SAM board by newdigate

About the Samd21g midi tool PCB

Samd21g midi tool is an open source Microchip SAM PCB design by newdigate, published on GitHub under the MIT license. It is a 4-layer board measuring 81.4 × 60 mm, with 54 components from 38 distinct parts.

Its main chip is the ATSAMD21G18A-48, from the Microchip SAM family. Other key parts include the PCF8523T, CR1220-2, AP7215-33YG-13, 6N138 and W25Q128JVS. By type, the board carries 16 capacitors, 15 resistors, 6 ICs, 6 connectors, 4 diodes and 2 switches.

It belongs with the audio and displays & leds designs in this gallery.

From the project

kicad design for samdg21 arm cortex m0

samdg21 arm cortex m0 microcontroller DIN-5 midi input and output st7735 display (128x128 16bit) PCF8523T realtime clock RTC socket for micro-SD card status LED SWD connection for programming PJ-320A connector for 2 foot-switches 5V POWER via USB 3V3 regulator 4-pin socket for neopixel strip Status LED

Samd21g midi tool, from the project README
From the project README

Main components on the Samd21g midi tool

PCF8523TCR1220-2ATSAMD21G18A-48AP7215-33YG-136N138W25Q128JVS

Samd21g midi tool bill of materials (BOM)

54 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PCF8523T
IC1
1
CR1220-2
IC2
1
ATSAMD21G18A-48
U1
1
AP7215-33YG-13
U2
1
6N138
U3
1
W25Q128JVS
U4
1
32.768KHZ
32.768KHz
Q1
1
32.768KHZ
32.768KHz
Y1
1
C132560
USB_B_Micro
J1
1
2X3_SMD_MALE
J2
1
AMPHENOL_114-00841-68
J3
1
CONN_01X08_PIN
Conn_01x08_Pin
J6
1
CONN_01X03_PIN
Conn_01x03_Pin
J7
1
PJ-320A
J8
2
DIN-5
JMIDIIN1, JMIDIOUT1
1
C361165
RotaryEncoder_Switch_MP
SW1
1
RotaryEncoder_Switch_MP
SW2
1
C12333
PRTR5V0U2X,215
D1
1
PMEG2005EL
D2
1
LED
D3
Show 18 more
QtyPartRefs
1
1N4148
D4
1
BLM18PG471SN1D
L1
1
4.7NF
4.7nF
C1
2
20PF
20pF
C2, C3
2
10UF
10uF
C4, C5
6
100NF
100nF
C6, C7, C9, C10, C11, C16
3
1UF
1uF
C8, C13, C14
1
4.7UF
4.7uF
C12
1
C150376
.1uF
C15
1
1M
R1
1
39
R2
2
1K
R3, R13
5
10K
10k
R4, R7, R8, R14, R15
1
10K
330
R5
1
100K
100k
R6
1
470
R9
1
220
R10
2
47
R11, R12

Samd21g midi tool design files

The KiCad project lives in the newdigate/samd21g-midi-tool repository on GitHub; these links point at the commit this page was built from.

Samd21g midi tool: common questions

What microcontroller does the Samd21g midi tool use?

The Samd21g midi tool is built around the ATSAMD21G18A-48, from the Microchip SAM family.

How big is the Samd21g midi tool PCB?

The Samd21g midi tool measures 81.4 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Samd21g midi tool?

54 components, from 38 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Samd21g midi tool design files?

From the newdigate/samd21g-midi-tool repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Samd21g midi tool design in my own project?

Yes, under the terms of its MIT license, which newdigate chose for the repository.

Can I test firmware for the Samd21g midi tool without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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