Editing of programs for this board is meant to be done with the OpenPLC software which can be found at: https://autonomylogic.com/

This board is intended to do the following:

• Provide a stable way to buck down 24VDC into 5VDC to power the ESP32 microcontroller. 
• Provide general purpose outputs for those voltages as well as a ~3.3VDC (Actually closer to 3.1VDC. Might revise in a future version.) for purposes I haven't thought of yet, but I had a spot to put it on the board, so I did.
• Provide fuses for the 24VDC power in and also the 5VDC, plus a Zener protection with the 5VDC source.
• Provide easy to use digital I/O terminals in the form of Phoenix style connectors
• Provide indication for each digital I/O in the form on green LEDs for the inputs and red LED's for the outputs.
• DIN rail mountable!
• Full digital I/O optoisolation!
• Dedicated power button. 
• Have the ability to work with a yet to be designed analog module, allowing for the ability to swap modules based on need for use different standards on the same unit. 
• Uses commonly available components. (Nearly every part was sourced from Amazon.)
• Finally, to be compatible with the common 24VDC control voltage used in many industries with built in fly-back diodes for back EMF protection. 

Please do not hesitate to ask any questions! I may have forgotten to list something.

BOM is in the "Other Files" section. I will try to update the regular one with other items soon!