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RFB

Penta0308·BikeRadar·RFB/RFB.kicad_pcb

RFB PCB layout, top view — open source STM32 board by Penta0308

About the RFB PCB

RFB is an open source STM32 PCB design by Penta0308, published on GitHub. It is a 6-layer board measuring 48.2 × 50 mm, with 226 components from 73 distinct parts.

Its main chip is the STM32L431CBTx, from the STM32 family. Other key parts include the SKY67189-396LF, TPS74601PBDRVR, ADC3222IRGZT, TG2016SMN and LMK00304SQ_NOPB. By type, the board carries 120 capacitors, 56 resistors, 24 ICs, 10 connectors, 9 inductors and 2 switches.

Main components on the RFB

SKY67189-396LFTPS74601PBDRVRADC3222IRGZTTG2016SMNLMK00304SQ_NOPBADA4940-2LMX2572RHARTLV365DBVRISO1044UBGRF2101ADL5802SN74LV1T34DCKAZ431LBNTRSTM32L431CBTx74LVC1G125SE5004LLM321XPR6272ITC5BD33GA3WNUX

RFB bill of materials (BOM)

226 components, 73 distinct parts.

QtyPartRefs
1
SKY67189-396LF
IC1
4
TPS74601PBDRVR
IC2, IC8, IC9, IC10
1
ADC3222IRGZT
IC3
1
TG2016SMN
U1
1
LMK00304SQ_NOPB
U2
1
ADA4940-2
U3
1
LMX2572RHAR
U4
1
TLV365DBVR
U5
1
ISO1044UB
U6
1
GRF2101
U7
1
ADL5802
U8
1
SN74LV1T34DCK
U9
1
AZ431LBNTR
U10
1
STM32L431CBTx
U11
2
74LVC1G125
U12, U13
1
SE5004L
U14
1
LM321
U15
1
XPR6272ITC5
U16
2
BD33GA3WNUX
U20, U22
1
PJA3433
Q1
Show 53 more
QtyPartRefs
3
Conn_Coaxial
J1, J2, J3
1
Conn_01x16_MountingPin
J4
1
Conn_01x04
J5
1
Conn_01x03_Male
J6
1
Conn_02x06_Odd_Even
J7
1
Conn_01x01
J8
1
Conn_01x02_Male
J9
1
Conn_02x06_Odd_Even
J10
2
BAL-UWB-01E3
FL2, FL3
1
B10k
RV1
1
PH3
SW1
1
RST
SW2
1
1.9V 5mA
D1
2
BLM18PG181SN1D
FB1, FB2
2
MFBM1V2012-101-R
FB7, FB8
4
2u2
L1, L2, L3, L4
1
4n7
L5
44
100n
C1, C2, C3, C4, C6, C8, C9, C13 +36
18
10u
C5, C19, C20, C25, C33, C81, C88, C98 +10
5
470n
C7, C11, C12, C24, C34
2
DNP
C10, C48
11
1u
C15, C17, C18, C22, C26, C27, C103, C123 +3
13
10n
C23, C52, C53, C54, C55, C65, C67, C69 +5
8
3p R
C28, C29, C59, C60, C61, C62, C63, C64
1
1n5
C30
2
5p6
C31, C90
1
1p5
C32
4
2n2
C50, C51, C77, C78
8
10p
C56, C57, C58, C66, C68, C70, C75, C96
2
220p
C84, C89
1
4u7
C93
9
10k
R1, R20, R39, R41, R50, R51, R52, R62 +1
8
100
R2, R3, R5, R9, R10, R11, R40, R53
4
0
R4, R33, R34, R44
1
13k
R6
3
DNP
R7, R25, R32
1
3R9
R8
4
560
R12, R13, R14, R15
4
8k2
R16, R17, R18, R19
1
180 P
R21
1
1k
R22
1
510
R23
1
2k
R24
6
49R9
R26, R27, R28, R29, R35, R37
1
3R7
R30
1
100k
R31
2
20
R36, R38
1
10k 1%
R68
1
4k7 1%
R69
2
4k99 1%
R70, R72
2
2k2 1%
R71, R73
1
8k2 1%
R74
1
1k 1%
R75

RFB design files

The KiCad project lives in the Penta0308/BikeRadar repository on GitHub; these links point at the commit this page was built from.

RFB: common questions

What microcontroller does the RFB use?

The RFB is built around the STM32L431CBTx, from the STM32 family.

How big is the RFB PCB?

The RFB measures 48.2 × 50 mm, has 6 copper layers and is 1.0596 mm thick.

How many components are on the RFB?

226 components, from 73 distinct parts. The full bill of materials is listed on this page.

Where can I download the RFB design files?

From the Penta0308/BikeRadar repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RFB design in my own project?

The repository has no license, so all rights stay with Penta0308. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RFB 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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