Here is my take on the MP CNC joystick.
Basic controls X Y Z and speeds with 3 buttons for homing and reset coordinates.
Using the code from [https://www.thingiverse.com/thing:3986022/files](https://www.thingiverse.com/thing:3986022/files)
And connecting to serial port 1 on ramps 1.4
Arduino nano -> ramps 1.4
5v -> 5v
gnd -> gnd
TX -> D0
RX -> D1

BOM:
Dsub 25pin connector
Arduino NANO
1 TF to SD adapter - [https://www.aliexpress.com/item/1005004130126203.html?spm=a2g0o.productlist.main.4.5cb020d59c1B4U&aem_p4p_detail=202506040340081648052158249640000067890&algo_pvid=56594440-8801-4151-a62a-ce174f5d0d58&algo_exp_id=56594440-8801-4151-a62a-ce174f5d0d58-3&pdp_ext_f=%7B%22order%22%3A%2227%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21BGN%216.09%215.36%21%21%213.48%213.06%21%4021038e1e17490336083031304e5e72%2112000028134722764%21sea%21BG%211707607649%21X&curPageLogUid=dQs25327pyCH&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=202506040340081648052158249640000067890_4](https://www.aliexpress.com/item/1005004130126203.html?spm=a2g0o.productlist.main.4.5cb020d59c1B4U&aem_p4p_detail=202506040340081648052158249640000067890&algo_pvid=56594440-8801-4151-a62a-ce174f5d0d58&algo_exp_id=56594440-8801-4151-a62a-ce174f5d0d58-3&pdp_ext_f=%7B%22order%22%3A%2227%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21BGN%216.09%215.36%21%21%213.48%213.06%21%4021038e1e17490336083031304e5e72%2112000028134722764%21sea%21BG%211707607649%21X&curPageLogUid=dQs25327pyCH&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=202506040340081648052158249640000067890_4)
2 arduino Joysticks [https://www.aliexpress.com/item/1005005518220642.html?spm=a2g0o.order_list.order_list_main.273.2db218029QgTXT](https://www.aliexpress.com/item/1005005518220642.html?spm=a2g0o.order_list.order_list_main.273.2db218029QgTXT)
3 momentary buttons [https://www.aliexpress.com/item/1005005546171012.html?spm=a2g0o.order_list.order_list_main.283.2db218029QgTXT](https://www.aliexpress.com/item/1005005546171012.html?spm=a2g0o.order_list.order_list_main.283.2db218029QgTXT)
Display old 1602 reprap display - [https://www.google.com/imgres?q=1602%20LCD%20Display%203D%20Printer%20Interface%20module&imgurl=https%3A%2F%2Fwww.3dware.ma%2Fwp-content%2Fuploads%2F2020%2F12%2F1602-lcd-display-screen-interface-adapte_main-5.jpg&imgrefurl=https%3A%2F%2Fpro.3dware.ma%2Fproduit%2F1602-lcd-display-screen-interface-adapter-module%2F%3Fadd-to-cart%3D403&docid=xy1Rq_Gxx8eh8M&tbnid=GF-duzxGWrriGM&vet=12ahUKEwjGkrLXydeNAxWTQ_EDHZLhGKwQM3oECBoQAA..i&w=1000&h=1000&hcb=2&itg=1&ved=2ahUKEwjGkrLXydeNAxWTQ_EDHZLhGKwQM3oECBoQAA](https://www.google.com/imgres?q=1602%20LCD%20Display%203D%20Printer%20Interface%20module&imgurl=https%3A%2F%2Fwww.3dware.ma%2Fwp-content%2Fuploads%2F2020%2F12%2F1602-lcd-display-screen-interface-adapte_main-5.jpg&imgrefurl=https%3A%2F%2Fpro.3dware.ma%2Fproduit%2F1602-lcd-display-screen-interface-adapter-module%2F%3Fadd-to-cart%3D403&docid=xy1Rq_Gxx8eh8M&tbnid=GF-duzxGWrriGM&vet=12ahUKEwjGkrLXydeNAxWTQ_EDHZLhGKwQM3oECBoQAA..i&w=1000&h=1000&hcb=2&itg=1&ved=2ahUKEwjGkrLXydeNAxWTQ_EDHZLhGKwQM3oECBoQAA)