Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? Hi all! I bought Hesine M505 (Prusa I3), Melzi 2.0 board and strange LCD screen 20x4 with 5 buttons. I can't configure Marlin to work with this LCD. Strange two white lines on this LCD and no more text. But i can connect with printer using Repetier-Host and i can control exitruder and move them. Can anyone help me with configuration Marlin for this strange LCD? [attachment 74783 2016-03-17_215657.png] https://reprap.org/forum/read.php?406,640954,640954#msg-640954 Tue, 09 Jun 2026 14:26:23 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?406,640954,650300#msg-650300 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,650300#msg-650300 pavel3.0.9 Prusa i3 and variants Sat, 09 Apr 2016 12:11:36 -0400 https://reprap.org/forum/read.php?406,640954,645207#msg-645207 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,645207#msg-645207 Marlin... - my compiled version.

Connection speed 115200 for Hesine firmware.

My printer based on Melzi board, i not sure is it work on RAMPS.]]> Xok Prusa i3 and variants Mon, 28 Mar 2016 02:35:38 -0400 https://reprap.org/forum/read.php?406,640954,645204#msg-645204 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,645204#msg-645204 zenerdyod Prusa i3 and variants Mon, 28 Mar 2016 01:53:59 -0400 https://reprap.org/forum/read.php?406,640954,641806#msg-641806 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,641806#msg-641806 Screen - simple HD44780
Keys - on one line with resistors.

[attachment 74922 LCDwith5buttons.png]

Wiring notes:
1 - GND
2 - NC - Ext_A4 - Pin33 - PA4
3 - RS - Ext_A3 - Pin34 - PA3
4 - E - Ext_A2 - Pin35 - PA2
5 - Buttons - Ext_A1 - Pin36 - PA1
10 - VCC
9 - D4 - Ext_RX1 - Pin11 - PD2
8 - D5 - Ext_TX1 - Pin12 - PD3
7 - D6 - Ext_SCL - Pin19 - PC0
6 - D7 - Ext_SDA - Pin20 - PC1]]> Xok Prusa i3 and variants Sat, 19 Mar 2016 14:27:22 -0400 https://reprap.org/forum/read.php?406,640954,641464#msg-641464 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,641464#msg-641464
Quote
minhtri.sm
The leadscrew Zonestar3D has was pitch 2mm but number of start is 4 that mean its pitch = 4*2 = 8mm so step is 400
Some use the leadscrew that pitch 2mm too but number of start is 1 that mean its pitch = 2*1 = 2mm so step is 1600

The GT2 Pully is 16 tooth so step is 100,
Some use GT2 20 tooths so step is 80


]]> broy55 Prusa i3 and variants Fri, 18 Mar 2016 15:35:52 -0400 https://reprap.org/forum/read.php?406,640954,641299#msg-641299 Re: Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,641299#msg-641299
I came across a forum with a solution for the 5 button LCD. Someone made this firmware: [www.dropbox.com]

It works for the LCD display but it's not printing properly anymore. I think the configuration of the machine is totally different. I'm not an expert but I think the ZAXIS_STEPS_PER_MM is set wrong for our machine (Anet A8-B by Hesine)

Hope this gets us in the right direction.]]> Sethrocon Prusa i3 and variants Fri, 18 Mar 2016 09:45:07 -0400 https://reprap.org/forum/read.php?406,640954,640954#msg-640954 Hesine M505 (China Prusa I3 copy) - how to config LCD in Marlin? https://reprap.org/forum/read.php?406,640954,640954#msg-640954
I bought Hesine M505 (Prusa I3), Melzi 2.0 board and strange LCD screen 20x4 with 5 buttons.
I can't configure Marlin to work with this LCD. Strange two white lines on this LCD and no more text. But i can connect with printer using Repetier-Host and i can control exitruder and move them.

Can anyone help me with configuration Marlin for this strange LCD?

[attachment 74783 2016-03-17_215657.png]]]> Xok Prusa i3 and variants Thu, 17 Mar 2016 14:59:17 -0400