HardLabs

OLD sensor board

SEDS-PSU·avionics·electronics/sensor-board/OLD_sensor-board.kicad_pcb

OLD sensor board layout, top view — open source STM32 board by SEDS-PSU

About the OLD sensor board

OLD sensor board is an open source STM32 PCB design by SEDS-PSU, published on GitHub. It is a 4-layer board measuring 176.6 × 134.6 mm, with 183 components from 61 distinct parts.

Its main chip is the STM32F105VBH6, from the STM32 family. Other key parts include the LD3985M33R_SOT23, 21-0041-3-M_90-0096-8L_MXM, MCP96RL01T, LMC6036 and MAX44252ASD. By type, the board carries 107 resistors, 31 connectors, 27 capacitors, 15 ICs, 1 crystal and 1 switch.

It belongs with the sensors designs in this gallery.

From the project

Board files and etc for avionics and teststand electronics

Main components on the OLD sensor board

LD3985M33R_SOT2321-0041-3-M_90-0096-8L_MXMSTM32F105VBH6MCP96RL01TLMC6036MAX44252ASD

OLD sensor board bill of materials (BOM)

183 components, 61 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LD3985M33R_SOT23
U1
1
21-0041-3-M_90-0096-8L_MXM
U2
1
STM32F105VBH6
U3
7
MCP96RL01T
U4, U5, U6, U7, U8, U9, U10
4
LMC6036
U11, U12, U13, U15
1
MAX44252ASD
U14
1
Crystal_GND24
Y1
1
SWD Header
J1
1
Supply_24V
J2
1
Supply_12V
J3
1
Load_C_1
J4
1
Load_C_2
J5
1
Pressure_5
J6
1
Pressure_6
J7
1
Pressure_7
J8
1
Pressure_8
J9
1
Suppply_5V
J10
1
Pressure_1
J11
1
Pressure_2
J12
1
Pressure_3
J13
Show 41 more
QtyPartRefs
1
Pressure_4
J14
1
Pressure_9
J15
1
Flow_1
J16
1
Flow_2
J17
1
CAN_Bus
J18
1
Spare_1
J19
1
Spare_2
J20
1
Spare_3
J21
1
Spare_4
J22
1
Therm_1
J23
1
Therm_4
J24
1
Therm_7
J25
1
Therm_2
J26
1
Therm_5
J27
1
Therm_3
J28
1
Therm_6
J29
1
Spare_HR_1
J30
1
Spare_HR_2
J31
1
SW_Push_Dual
SW1
1
10uH
L1
2
1uF
C1, C3
1
10nF
C2
8
100nF
C6, C7, C8, C9, C10, C11, C28, C29
2
20pF
C12, C27
14
0.1uF
C13, C14, C15, C16, C17, C18, C19, C20 +6
2
4.7k
R2, R108
14
2M
R3, R4, R5, R6, R15, R16, R20, R21 +6
7
1M
R7, R8, R17, R24, R25, R40, R41
20
100
R9, R10, R11, R12, R18, R19, R26, R27 +12
7
10k
R13, R30, R32, R33, R46, R47, R111
1
7.5k
R14
1
43k
R31
1
2.2k
R34
1
13k
R35
1
4.3k
R48
1
22k
R49
16
NO_RES
R50, R51, R52, R53, R54, R55, R56, R57 +8
4
24.92
R67, R69, R71, R73
8
82500
R74, R75, R76, R77, R78, R79, R80, R81
22
150
R82, R83, R84, R85, R86, R87, R88, R89 +14
1
0k
R112

OLD sensor board design files

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

OLD sensor board: common questions

What microcontroller does the OLD sensor board use?

The OLD sensor board is built around the STM32F105VBH6, from the STM32 family.

How big is the OLD sensor board?

The OLD sensor board measures 176.6 × 134.6 mm, has 4 copper layers and is 4.69 mm thick.

How many components are on the OLD sensor board?

183 components, from 61 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 OLD sensor board design files?

From the SEDS-PSU/avionics repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the OLD sensor board design in my own project?

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

Can I test firmware for the OLD sensor board 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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