HardLabs

Echo

kashishkebab9·echo·pcb/echo.kicad_pcb

Echo PCB layout, top view — open source STM32 board by kashishkebab9

About the Echo PCB

Echo is an open source STM32 PCB design by kashishkebab9, published on GitHub. It is a 4-layer board measuring 51.1 × 50 mm, with 42 components from 24 distinct parts.

Its main chip is the STM32H723VGTx, from the STM32 family. Other key parts include the TLV1117-33. By type, the board carries 18 capacitors, 8 connectors, 8 resistors, 2 ICs, 2 switches and 1 crystal.

From the project

bird locating hardware

Main components on the Echo

STM32H723VGTxTLV1117-33

Echo bill of materials (BOM)

42 components, 24 distinct parts.

QtyPartRefs
1
STM32H723VGTx
U1
1
TLV1117-33
U2
1
25Mhz 9pF
Y1
4
Conn_01x06_Pin
J1, J2, J3, J4
1
1054500101
J5
2
Conn_01x04_Pin
J6, J8
1
Conn_ARM_JTAG_SWD_20
J7
1
ICS-52000
MK1
1
SW_Push
SW1
1
SW_SPDT
SW2
1
GREEN
D1
1
FerriteBead
FB1
8
100nF
C1, C4, C5, C6, C7, C8, C9, C14
3
47uF/3528
C2, C3, C10
1
10nF
C11
2
1u
C12, C13
2
8pF
C15, C16
2
2u2
C17, C18
1
100k
R1
2
5k1
R2, R3
Show 4 more
QtyPartRefs
1
1k
R4
1
1k5
R5
1
10k
R6
2
4k7
R7, R8

Echo design files

The KiCad project lives in the kashishkebab9/echo repository on GitHub; these links point at the commit this page was built from.

Echo: common questions

What microcontroller does the Echo use?

The Echo is built around the STM32H723VGTx, from the STM32 family.

How big is the Echo PCB?

The Echo measures 51.1 × 50 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Echo?

42 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Echo design files?

From the kashishkebab9/echo repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Echo design in my own project?

The repository has no license, so all rights stay with kashishkebab9. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Echo 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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