This device implementes a PI controller, with integrator reset. The polarity of the reset signal is selectable by choosing which of R11, R12 to populate.
PDF copies of the schmatic and PCB are found in the Generated folder
Gerber files are included in this repo under the directory CAM/ and under the archive CAM.zip. Use any PCB manufacturer; a reliable and quick one out of China is JLC-PCB.
The bill of materials can be found under the CSV text file "LaserPID.txt". You can import this directly into Digikey.com. The quantities are set for creating 5 boards. You may want to add sockets for the op-amps and stand-offs for the boards when ordering. If the INA105 is not available, you can use the INA106.
All parts should be able to be soldered without much trouble. A web-page has been created to check off parts as they are soldered. The web-page can be created from the bill of materials (LaserPID.txt) using python3 generate-web-page.py LaserPID.txt. Open the HTML file "PartList.html" in any web-browser.
The value of R6 and C6 should be set by the user for their particular application. Keeping R6 as 3.3k and setting C7 as 10 nF seems to work well in controlling dipole laser powers.