New Sensor Generation for DSLR Remote Control

New Sensor Generation for DSLR Remote Control

New Sensor Generation for DSLR Remote Control

Please read Liability Disclaimer and License Agreement CAREFULLY

Elevate your photography game with this cutting-edge hardware designed for use with a DSLR camera remote control.

The range of hardware includes sound sensors, light sensors, high-speed object sensors, and valve sensors, all carefully crafted to provide optimal performance and stunning results.

Compatible with DSLR Remote Control F7, these sensors enable you to capture images with unparalleled precision and control.

Read further to learn more about our range of hardware and take your photography to the next level today.

The new Sound and Light sensors for DSLR Remote Control F7 are using OPA43454 as operational amplifier, the based design is almost the same as the previous generation.

The main board of the remote is controlling the sensor sensitivity via SPI1 by changing the resistors values of AD5235

The sensor output is fed to the main board MMCU pin PC4 configured as analog input.

Light Sensor PCB Top

Light Sensor PCB Bottom

Light Sensor V4 PCB Top and Bottom

Sound Sensor PCB Top

Sound Sensor PCB Bottom

Sound Sensor V4 PCB Top and Bottom

The KiCAD projects  are available for download Light Sensor V4 and Sound Sensor V4

The Valve Sensor has been redesigned to provide power through a barrel jack as the valve are power from 12V or 24V.

The DSLR remote Control is using pins PB8 and PB9 configured as GPIO to control the 2 BD901 transistors that are directly driving the valves.

By controlling the time (mili seconds) we keep the valve open (size of a water droplet) and the interval between the openings, we will be able to capture the impact between 2 water droplets or similar.

Check this article to see some pictures of the result Water Mushrooms

Valve Sensor

Valve Sensor V2 PCB Top

The KiCAD projects  are available for download Valve Sensor V2

The Fast Object Detector Sensor has been redesigned to allow stiffer assembly of the 2 sides and to use the same connector Molex 70543-0038 towards the DSLR Remote Control.

This sensor is basically a double photo gate, the DSLR remote Control is using pins PB8 and PB9 configured as EXTI to know when a photogate is trigger.

By measuring the time between the 2 triggers (getting MCU clock cycles) and knowing the distance between the photogates (50mm) we can calculate the speed of an object and then predict his position, for example we will be able to capture the impact between a pellet and a light bulb.

Knowing the MCU frequency fMCu=550MHz we get a clock cycle (CC) time of (1/55)*10-7s and the distance between the photogates 50mm = 0.05m, we can calculate the speed of the object.

Knowing the distance from last photogate to our target, we can calculate the time needed for the object to get to target, also in CC (remember to subtract the CC spent for calculation).

To make things easy, we can use the CC further, if we count let's say 35500CC to travel 50mm and our object is 1m away from last photogate and we consider constant speed for the object, then

we need to wait 35500*20=710000CC to travel 1m (1m = 20*50mm) or 710000/550MHz = 0.0012909090909091s or 1.29ms

If you want to know the speed of the object in m/s then you can divide the CC/fMCU=35500/550MHz=0.000064545 s.

The speed V = 0.05 m / 0.000064545 s ≈ 774.3 m/s 

A faster way (after rearranging the terms) is to use the formula V=275*105/nCC where nCC is the number of CC.

Fast Object Detector

Fast Object Emitter

The Fast Object Detector Sensor PCBs Detector and Emitter 

Check this article to see some pictures of the result Milk Crowns

The KiCAD projects  are available for download Fast Object Sensor V2

The 3D models can be downloaded from following links Fast Sensor 3D Model, Valve Sensor 3D Model

For the enclosure of the Sound and light sensor check this article DSLR Remote Control F7

Comments powered by CComment

Who’s online

We have 41 guests and no members online