HardLabs

PomeloCore

robouden·PomeloCore-KiCad·Polemo Core/bGeigieScint/bGeigieScint.kicad_pcb

PomeloCore PCB layout, top view — open source Microchip SAM board by robouden
Simulate this board

About the PomeloCore PCB

PomeloCore is an open source Microchip SAM PCB design by robouden, published on GitHub. It is a 4-layer board measuring 40 × 100 mm, with 156 components from 63 distinct parts.

Its main chip is the ATSAML21G18B-AUT, from the Microchip SAM family. Other key parts include the XC6209F332MR-G, MC14043BDR2G, LMV793MFX/NOPB, TPS7A2030PDBVR and TLV3201AIDBVT. By type, the board carries 58 capacitors, 54 resistors, 15 ICs, 10 diodes, 5 transistors and 3 connectors.

It belongs with the power & battery designs in this gallery.

From the project

bGeigieScint is a compact radiation detection board featuring a Silicon Photomultiplier (SiPM) based sensor system with integrated high-voltage generation, analog signal processing, and USB connectivity.

bGeigieScint is a compact radiation detection board featuring a Silicon Photomultiplier (SiPM) based sensor system with integrated high-voltage generation, analog signal processing, and USB connectivity.

- Microcontroller: ATSAML21G18B (ARM Cortex-M0+, 256KB Flash, 32KB RAM) - SiPM Interface: Complete analog frontend with adjustable HV bias (30-70V) - Power Management: Multi-rail power supply (3.3V, 3.0V, Vload, Vbias) - Connectivity: USB-C interface with ESD protection - Debug: 10-pin J-LINK SWD interface + 18 test points - Expansion: Multiple GPIO headers for external interfaces - Compact…

Main components on the PomeloCore

ATSAML21G18B-AUTXC6209F332MR-GMC14043BDR2GLMV793MFX/NOPBTPS7A2030PDBVRTLV3201AIDBVTOPA357AIDBVRTLR341G-GTRMF-ASML020/6-274LVC1G08GV,125LT3014BHVES5#TRMPBFTXU0202DCURTLV7031DBVR803-87-006-10-001101

PomeloCore bill of materials (BOM)

156 components, 63 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATSAML21G18B-AUT
MICROCHIP(美国微芯)
U1
1
XC6209F332MR-G
TOREX(特瑞仕)
U2
1
MC14043BDR2G
onsemi(安森美)
U3
1
LMV793MFX/NOPB
TI(德州仪器)
U4
1
TPS7A2030PDBVR
TI(德州仪器)
U5
1
TLV3201AIDBVT
TI(德州仪器)
U6
1
OPA357AIDBVR
TI(德州仪器)
U7
2
TLR341G-GTR
ROHM(罗姆)
U8, U14
1
MF-ASML020/6-2
BOURNS
U9
1
74LVC1G08GV,125
Nexperia(安世)
U10
1
LT3014BHVES5#TRMPBF
ADI(亚德诺)
U11
1
TXU0202DCUR
TI(德州仪器)
U12
1
TLV7031DBVR
TI(德州仪器)
U13
1
803-87-006-10-001101
Preci-Dip
U15
1
BC847_C2910145
CJ(江苏长电/长晶)
Q1
2
MMBT5551LT1G
onsemi(安森美)
Q2, Q5
2
AO3401A
AOS
Q3, Q4
1
32.768kHz
EPSON(爱普生)
X1
1
20021111-00010T4LF
Amphenol ICC
J-LINK1
2
Header-Male-2.54_2x2
BOOMELE(博穆精密)
P1, P2
Show 43 more
QtyPartRefs
1
TS-1187A-B-A-B
XKB Connectivity(中国星坤)
BUT1
3
KH-2.54PH180-1X7P-L11.5
kinghelm(金航标)
H2, H3, H5
1
KH-2.54PH90-1X2P-L13.8
kinghelm(金航标)
MEAS1
1
USB3.1C16PFSMT
LCSC
USBC1
1
19-217/GHC-YR1S2/3T
EVERLIGHT(亿光)
LED1
1
NUP2114UCMR6T1G
ON Semicon
D1
1
BAS21HT1G
onsemi(安森美)
D2
6
1N4148W_C81598
ST(先科)
D3, D4, D5, D6, D8, D10
1
BAT54C,215
Nexperia(安世)
D7
1
SS34_C8678
MDD
D9
1
SDR0503-103JL
L1
1
10uH
Sunlord(顺络)
L2
1
470Ω
muRata(村田)
L3
10
1uF
Kyocera AVX
C1, C13, C14, C25, C28, C31, C32, C33 +2
4
10nF
FH(风华)
C2, C8, C17, C22
9
4.7uF
SAMSUNG(三星)
C3, C19, C20, C44, C47, C48, C49, C52 +1
5
10uF
SAMSUNG(三星)
C4, C5, C6, C57, C58
18
100nF
YAGEO(国巨)
C7, C11, C12, C18, C21, C23, C26, C27 +10
1
30pF
FH(风华)
C9
1
4.7nF
FH(风华)
C10
6
1nF
SAMSUNG(三星)
C15, C16, C24, C29, C30, C34
2
4.7uF
FH(风华)
C38, C39
2
18pF
SAMSUNG(三星)
C42, C43
2
27kΩ
UNI-ROYAL(厚声)
R1, R39
2
5.1kΩ
UNI-ROYAL(厚声)
R2, R7
3
47kΩ
UNI-ROYAL(厚声)
R3, R35, R36
20
1kΩ
UNI-ROYAL(厚声)
R4, R9, R17, R29, R30, R33, R40, R41 +12
1
220kΩ
UNI-ROYAL(厚声)
R5
1
1MΩ
UNI-ROYAL(厚声)
R6
3
330kΩ
UNI-ROYAL(厚声)
R8, R11, R12
5
100Ω
UNI-ROYAL(厚声)
R10, R18, R20, R28, R32
3
100kΩ
UNI-ROYAL(厚声)
R13, R16, R42
1
120MΩ
UNI-ROYAL(厚声)
R14
1
5.6MΩ
UNI-ROYAL(厚声)
R15
1
22kΩ
UNI-ROYAL(厚声)
R19
2
6.8kΩ
UNI-ROYAL(厚声)
R21, R27
1
30kΩ
UNI-ROYAL(厚声)
R22
3
10kΩ
UNI-ROYAL(厚声)
R23, R24, R37
1
4.7MΩ
UNI-ROYAL(厚声)
R25
1
2.2kΩ
UNI-ROYAL(厚声)
R26
1
510Ω
UNI-ROYAL(厚声)
R31
1
200kΩ
UNI-ROYAL(厚声)
R34
1
0Ω
UNI-ROYAL(厚声)
R38

PomeloCore design files

The KiCad project lives in the robouden/PomeloCore-KiCad repository on GitHub; these links point at the commit this page was built from.

PomeloCore: common questions

What microcontroller does the PomeloCore use?

The PomeloCore is built around the ATSAML21G18B-AUT, from the Microchip SAM family.

How big is the PomeloCore PCB?

The PomeloCore measures 40 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the PomeloCore?

156 components, from 63 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 PomeloCore design files?

From the robouden/PomeloCore-KiCad 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 PomeloCore design in my own project?

The repository has no license, so all rights stay with robouden. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the PomeloCore 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.

Similar boards