HardLabs

Diy projector clock

shufps·diy-projector-clock·kicad/beamer1.kicad_pcb

Diy projector clock PCB layout, top view — open source STM32 board by shufps

About the Diy projector clock PCB

Diy projector clock is an open source STM32 PCB design by shufps, published on GitHub. It is a 2-layer board measuring 77 × 100 mm, with 63 components from 41 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the LCD64x32, LM3414, LD1117S33CTR and 8MHz. By type, the board carries 21 resistors, 20 capacitors, 6 connectors, 5 ICs, 3 diodes and 2 transistors.

From the project

DIY Projector Clock

A Clock Projector can project the time to a ceiling in the night.

There are lots of commercial alarm clocks with integrated clock projector on the market but I thought, it would be fun to build one myself.

Moreover it was a good project for becoming accustomed to the process of 3d-designing cases which can be 3d printed and to learn about designing tolerances.

Diy projector clock, from the project README
From the project README

Main components on the Diy projector clock

LCD64x32LM3414LD1117S33CTRSTM32F103C8Tx8MHz

Diy projector clock bill of materials (BOM)

63 components, 41 distinct parts.

QtyPartRefs
1
LCD64x32
U1
1
LM3414
U2
1
LD1117S33CTR
U3
1
STM32F103C8Tx
U4
1
8MHz
U5
1
BC807-40
Q1
1
BC817
Q2
1
32768
X1
2
CONN_02X05
P1, P5
2
MYUSB_B
P2, P4
1
TSOP75238TR
P3
1
CONN_01X05
P6
1
Jumper_NO_Small
JP1
1
SW_PUSH
SW1
1
Rotary_Encoder_Switch_My
SW2
1
NET-TIE
W1
1
Schottky
D1
1
CREE_XPE
D2
1
BAS416
D3
1
10µH/1A
L1
Show 21 more
QtyPartRefs
1
100n
C1
3
1µ
C2, C3, C4
1
1µ
C5
1
2,2µ
C6
8
100n
C7, C10, C13, C14, C15, C16, C17, C20
1
PXA150/10
C8
2
10u
C9, C12
1
0,1F/5.5V
C11
2
2p
C18, C19
2
2k2
R1, R2
3
10k
R3, R5, R8
1
4,7R
R4
1
8k93
R6
1
20k
R7
3
100
R9, R16, R17
1
1k5
R10
2
10
R11, R12
2
10k
R13, R14
1
36k
R15
1
22
R18
3
4k7
R19, R20, R21

Diy projector clock design files

The KiCad project lives in the shufps/diy-projector-clock repository on GitHub; these links point at the commit this page was built from.

Diy projector clock: common questions

What microcontroller does the Diy projector clock use?

The Diy projector clock is built around the STM32F103C8Tx, from the STM32 family.

How big is the Diy projector clock PCB?

The Diy projector clock measures 77 × 100 mm, has 2 copper layers and is 0.6 mm thick.

How many components are on the Diy projector clock?

63 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Diy projector clock design files?

From the shufps/diy-projector-clock repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Diy projector clock design in my own project?

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

Can I test firmware for the Diy projector clock 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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