DIY GRBL offline controller for Laser engraver

[@amarnathkeshari7973]

Cs pin for arduino

[@ekoharyanto8176]

Great

[@manifa59]

Thanks

[@mdcreative8847]

very good,
can you share the circuit diagram with me

[@manifa59]

1- Upload code to Arduino Uno
2- Put Keypad LCD shield on it
3- Connect MOSI , MISO , SCK , CS , GND and 5V to SD Ram reader module , these pins have been shown in "Connection" link.
4- Connect 5v , GND , TX and RX to main GRBL Controller.
5- Power your machine.
any problem comment here to solve it together
let me update the connection too

[@amarnathkeshari7973]

Cs pin number sir

[@manifa59]

CS Pin: D10

[@amarnathkeshari7973]

Cs pin 10 but lcd not works
Help me

[@manifa59]

​​@@amarnathkeshari7973
If the LCD's backlight is on but nothing can be seen:
1. after uploading code to the offline controller , you must connect it to the main controller correctly, otherwise the LCD shows nothing. ( rx to tx , tx to rx , gnd and 5V from offline controller to grbl controller)
2. turn the LCD contrast multi turn to see characters
if your LCD's backlight turns on and off but nothing shown in it:
turn the LCD contrast multi turn to see characters