# 4x Input CNC I/O module

ESP32_grbl CNC I/O Module with 4 switch inputs with opto isolated inputs and  isolated power supply

- **Seller:** [SmartElectronic](https://www.lectronz.com/stores/smartelectronic), haikou, Hainan, China
- **Price:** €18.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** CNC
- **Product page:** https://www.lectronz.com/products/-4x-input-cnc-i-o-module

## Images

![4x Input CNC I/O module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjkyOCwicHVyIjoiYmxvYl9pZCJ9fQ==--18f5db4a8768d20f2514d82caf11059aa49d5d5e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-03-24T10-14-30.850Z-4opto%20input.jpg)
![4x Input CNC I/O module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjkyOSwicHVyIjoiYmxvYl9pZCJ9fQ==--df1c38e353371c02ca186c7af0ce7e820d2371f6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-03-24T10-14-30.850Z-global_vue.jpg)

## Description


This is an input CNC I/O Module designed for use with the 6 Pack Universal CNC Controller. It is used for switch inputs. It can use simple mechanical switches, opto interrupt switches, some proximity switches, Hall effect sensors, etc. The inputs would be used for limit/homing switches, probe, control switches and macro buttons.

#### Why did you make it?
This is our original PCB design, based on  Bart Dring with some minor changed to adapt to our need.

#### What makes it special?

- some components have been changed for optimization
- connectors are JST XH2.54

**DESCRIPTION**
This module is 100% compatible with Bart DRING module :
It has a 3 position terminal block per switch input (Signal, +5V and Gnd). 
Offering optoisolated inputs with an isolated power supply. 
To improve the signal is also filtered and sent through a Schmitt trigger. Dealing with noise and voltage spikes is a huge problem with CNC machines, this optocoupled module solve this.

**WHAT IS INCLUDED**

- This module 
- 4x XH2.54 3 pins (to be soldered) 
- 4x XH2.54 3 pins 10 cm wire to your sensor
- 1x Nylon M3 screw

**ORDERING**

Please note that this item is to use with our 6 pack compact modular controller available in our Shop

## Shipping policy

Usually, we do the shipping within 72H (full working days) from our factory but maybe a little longer depending on the product option selected.
Delivery may vary upon final destination and customs clearance on arrival and shipping option