This is a CNC controller for use with an ESP32 and FluidNC firmware. It uses plug in CNC I/O modules to allow it to control a vast array of external devices, like RS485 Spindles, lasers, coolant devices, etc. Check out my other projects to see what is available.

Features

• Control up to 6 external motor drivers. The signals are 5V with enough current to drive opto isolators. You can use 3 to 6 letttered axes (XYZABC) or you can control dual motor axes like XXYYZA.
  
  
• 6 built in opto isolated inputs. This saves you from having to buy an input module. If 6 is not enough you can add install input modules in the CNC I/O module sockets.
• 2 built in 5V output signals. Each has a status LED.
• 3 CNC I/O Modules. #1 and #2 use GPIO and can support any module. #3 is output only. RS485, %V Ouput and Relay shown in product image.
• Socket for standard ESP32-DevKitC modules in the 2x19 pin formats. It supports both 0.9" and 1.0" wide versions.
• 6 extra digital outputs on pin headers.
• Micro SD card socket.
• 9VDC to 24VDC power input.
• No jumpers or compiling. Everything is setup with a config file. (see attachments for an example)
• Full support via Discord or Github Issues

All connections use plug in terminal blocks.

Buying from me.

I sell on Tinie (link coming soon) Contact me via Discord

Buying from JLCPCB

You need to buy the following mating connectors from LCSC 

(6) Stepper Motor Driver KF2EDGK-3.5-4P C440849

(3) Input/Output KF2EDGK-2.54-6P C577530

(1) Power Input XY2500F-A-5.0-2P LCSC P/N C504904

(3) MOD1-MOD3 12P Female Header LCSC P/N C225509 can be C350303
 

You also need a ESP32 Module in the 2x19 format ESP32-DevKitC

Alternate Parts

I sugest cloning the project and testing any alternates for fit

U6,U7,U8,U9 (Should be a 74AHCT595 in SOIC-16)

Texas Instruments SN74AHCT595DR
Diodes Incorporated 74AHCT595S16-13

D1

C134461

Here is a video on how to order.