A hardware device based on the ubiquitous ESP8266 Wi-Fi module intended to give a non Wi-Fi enabled DSLR the possibility to shoot remotely, via Wi-Fi, in access point mode. The device is supposed to be attached to the camera through a mini male jack connector-- the same way commercial devices do.

This is how the UI looks on a whatsoever browser once everything is set up.

• set an AP_name and AP_pass of your choice here and here respectively.
• upload main.ino onto the ESP8266. ⁽¹⁾
• connect the device you intend to use as remote shutter (e.g. your smartphone) to the Wi-Fi network AP_name.
• open the browser and navigate to: 192.168.4.1.
• if no errors occur, you should be able to see this interface. The connection is now established and you are ready to shoot. 😎

• Schematic and pcb of the final device.
• (Improve the code)

^* This project is still work in progress.
⁽¹⁾ I used an Arduino Uno to accomplish that. Follow along this step-by-step guide in case of troubles.