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Pcb

atx·spectrometer·pcb/pcb.kicad_pcb

Pcb layout, top view — open source STM32 board by atx

About the Pcb

Pcb is an open source STM32 PCB design by atx, published on GitHub under the MIT license. It is a 2-layer board measuring 75.7 × 37.4 mm, with 148 components from 61 distinct parts.

Its main chip is the STM32F302K8U6, from the STM32 family. Other key parts include the LM7705MM, MAX4477AUA+, NCP700BSN33T1G, MAX11102AUB+ and MAX6126BASA21+. By type, the board carries 62 capacitors, 52 resistors, 13 ICs, 6 connectors, 5 jumpers and 4 inductors.

It belongs with the science & space designs in this gallery.

From the project

Alpha spectrometer developed during my internship at the Institute at the Experimental and Applied Physics

Alpha spectrometer developed during my internship at the IEAP.

Pu-239 Am-241 Cm-244 spectrum (on bare die BPW34 in vacuum)

If the device receives a packet with invalid type, it responds with an ERROR packet with EUNKNOWN error type.

This does not do anything, it is recommended to send a bunch of NOPs on opening the serial port to flush any data which might have been left in the device input buffer.

Pcb, from the project README
From the project README

Main components on the Pcb

LM7705MMMAX4477AUA+NCP700BSN33T1GMAX11102AUB+MAX6126BASA21+STM32F302K8U6QX333A12.00000B15MLT3571EUDTPS77001DBVTAD829ARZAD8061ARTZAD8031ARTZ

Pcb bill of materials (BOM)

148 components, 61 distinct parts.

QtyPartRefs
1
LM7705MM
U1
1
MAX4477AUA+
U2
2
NCP700BSN33T1G
U3, U7
1
MAX11102AUB+
U4
1
MAX6126BASA21+
U5
1
STM32F302K8U6
U6
1
QX333A12.00000B15M
U8
1
LT3571EUD
U9
1
TPS77001DBVT
U10
1
AD829ARZ
U11
1
AD8061ARTZ
U12
1
AD8031ARTZ
U13
1
BSS138
Q1
1
BF861
Q2
3
SMA
J1, J2, J3
2
CONN_02X03
P1, P6
1
USB_OTG
P5
1
BEAD
F1
3
DNP
JP2, JP3, JP5
2
0R
JP4, JP6
Show 41 more
QtyPartRefs
2
LED
D1, D2
1
BAT54S-7-F
D3
1
BEAD
L1
1
10u
L2
1
1m
L3
1
BLM15AX121SN1D
L4
14
10u
C1, C9, C10, C11, C17, C20, C42, C45 +6
16
100n
C2, C7, C14, C18, C19, C21, C22, C23 +8
3
4.7u
C3, C4, C28
9
1u
C5, C8, C15, C16, C30, C33, C34, C40 +1
1
22u
C6
10
10n
C12, C13, C35, C43, C47, C51, C54, C55 +2
1
100u
C29
1
100n/200V
C36
1
10n/200V
C38
1
2n2/200V
C39
1
2p7
C44
1
4p7
C46
3
1n
C49, C56, C59
4
1M
R1, R2, R22, R26
2
1k5
R3, R16
1
10
R4
3
5k1
R5, R39, R52
10
22
R6, R7, R14, R15, R33, R34, R41, R42 +2
9
10k
R8, R9, R19, R20, R24, R31, R32, R40 +1
4
100
R10, R11, R12, R13
2
R
R17, R18
1
20
R21
1
20k
R23
1
51
R25
1
10M
R27
1
47
R28
3
1k
R29, R38, R44
1
100M
R30
1
510k
R35
1
200k
R36
1
100k
R37
1
270
R43
1
4k3
R45
2
2k
R46, R48
1
1
R50

Pcb design files

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

Pcb: common questions

What microcontroller does the Pcb use?

The Pcb is built around the STM32F302K8U6, from the STM32 family.

How big is the Pcb?

The Pcb measures 75.7 × 37.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pcb?

148 components, from 61 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pcb design files?

From the atx/spectrometer repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Pcb design in my own project?

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

Can I test firmware for the Pcb without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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