2 layers
Encoder
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
7 parts4.3kMIT
2 layers60 × 24 mm
Shutter timing tool
foriequal0/shutter-timing-toolShutter timing tool for Canon AE-1
- Size
- 60 × 24 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 7
- Nets
- 5
- Pads
- 17
- Tracks, vias
- 43, 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Apr 2025
- Updated
- 7 Apr 2025
Overview
Shutter timing tool is an open-source printed circuit board by foriequal0, from the foriequal0/shutter-timing-tool repository on GitHub. It is a 2-layer board of 60 × 24 mm with 7 parts on 5 nets, routed with 43 tracks and 3 vias.
It is built around the VEMD4200FX01. Its parts include 3 resistors, 3 diodes and 1 connector.
Main components
1README
README.mdShutter timing tool
This repository contains source code and schematics for the shutter timing tool. It is designed to measure following timings of Canon AE-1:
- exposure time
- curtain travel time (opening/closing)
BOM
- pcb
VEMD4200FX01photodiodes (x3)- SMD 0805 510k Ohm resistors (x3)
- Raspberry Pico
- USB to UART module
How to use
Upload the firmware to RPI Pico
platformio run -t upload -e picoConnect PCB to the RPI Pico
PCB sensor's pins shoud be connected to the RPI Pico's ADC0, ADC1, ADC2.
(ADC0 is for the rightmost sensor when you see it from the back of the camera,
and ADC2 is for the leftmost one)
Monitor UART0 RX pin
UART0 RX pin is used to report the timing.
Connect it to your PC through USB to UART module.
I've used platformio device monitor --baud 115200
Place PCB on the film plane.
Align the board so that all three sensors are exposed when the shutter is opened.
Place a light source in front of the camera
Remove the lens, and place a light source in front of the camera. The light source should be bright and uniform.
Release the shutter
Output from UART0 RX should look like this:
exposure: 170.0 ms, opening: 12312 us, closing: 11231 us
exposure: 83.1 ms, opening: 12312 us, closing: 11231 us- exposure: exposure time of
ADC1(middle sensor). - opening: the travel time of the opening curtain.
It is measured as the interval between the time
ADC0is exposed and the timeADC2is exposed. - closing: the travel time of the closing curtain.
It is measured as the interval between the time
ADC0is no longer exposed and the timeADC2is no longer exposed.
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 510k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3 |
| 3 | VEMD4200FX01 | Library:VEMD4200FX01 | D4, D5, D6 |
| 1 | Conn_01x05_Socket | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J2 |
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Questions
How big is the Shutter timing tool PCB?
It measures 60 × 24 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Shutter timing tool use?
7 parts, built around the VEMD4200FX01. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Shutter timing tool KiCad files?
From the foriequal0/shutter-timing-tool repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb and its schematic pcb/pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shutter timing tool design in my own project?
Its repository states no licence, so its author keeps all rights: ask foriequal0 before reusing the design.