USB Photodiode Interface
A highly sensitive transimpedance amplifier with a built-in USB interface for data logging. The interface is capable of 16-bit resolution with a sample rate of up to 860 Hz. When combined with a sensitive photodiode, the interface is able to make precise measurements at extremely low light levels.
![Photodiode interface top view](/usb-photodiode-interface/main.jpg)
Expandable
The interface includes expansion headers that allow the control and monitoring of other equipment to be synchronised with photodiode readings.
![App showing a graph of light intensity](/usb-photodiode-interface/app.jpg)
Modern Cross-Platform Software
The monitoring application is built using the Electron framework and communicates using a virtual serial port. Virtual serial ports are widely supported across operating systems and programming languages, making it simple to integrate into existing applications.
The photodiode interface can also operate in a standalone mode, saving data to its internal memory. A display can be connected to the expansion headers to control the device in this mode.
![Photodiode interface with two cables connected](/usb-photodiode-interface/scene.jpg)