Thursday, 29 November 2012

Panelolu on RAMPS and PrintrBoard issues


Panelolu on RAMPS


Update: The Panelolu2 has replaced the Panelolu. It is much quicker to install, has adapter boards to no messing with cables and uses less pins. The blog post with the information is here, it is available to buy in our webshop.

The original idea for the Panelolu was based on the PanelMax which works with RAMPS. What I had not got around to doing was determining the changes needed to the pin mapping to cable for the Panelolu to work on RAMPS. Thankfully Ian Stratford has done the hard work and worked it all out.

Update: Ian has also made the Panelolu page on the reprap wiki - thanks!

The tables below refer to the RAMPS pin outs from the reprap wiki - the picture is below



The tables below cover the differences between the RAMPS setup and the original instructions: Panelolu on Sanguinololu.

Ribbon Cable number
Function
Pin Sanguinololu
Pin RAMPS
1
GND
GND
NA
2
12V
12V
NA
3
LCD 1 (VSS - Ground)
LCD 5 (RW - Read/Write)
LCD 16 (K - Backlight Anode-)
Breadboard GND for encoder, switch, contrast, reset.
GND
GND (AUX-4)
4
LCD 2 (VDD +3.3 to +5v)
5V on breadboard, for brightness
5V
5V (AUX-4)
5
LCD 14 (DB7 - data bit)
A4
D29
6
LCD 4 (RS - register select)
PWM D12
D16
7
LCD 13 (DB6 - data bit)
A3
D27
8
Encoder1
TX1 D11
D35
9
LCD 12 (DB5 - data bit)
A2
D25
10
Encoder2
RX1 D10
D37
11
LCD 11 (DB4 - data bit)
A1
D23
12
LCD 6 (E - clock)
SDA D17
D17
13
SD (CS pin)
A0
D53
14
(via SDSL plug, NC) Encoder click
SCL D16
D31            
15
(via SDSL plug, NC)


16
(via SDSL plug, NC)


17
SD Ground
GND
GND
18
(via SDSL plug, NC) Reset
RST
No RST pin?
19
SD (DI pin)
MOSI
MOSI D51
20
SD (SCK pin)
SCK
SCK D52
21
SD 5V
5V
5V
22
SD (DO pin)
MISO
MISO D50
23
NA
NA

24
NA
NA





Other
LCD 3 (VO – contrast adjuster) to C on breadboard


Other
LCD 15 (A – Backlight Anode+) to B on breadboard (brightness)



RAMPS AUX-4
Ribbon Cable number
Function
Pin Sanguinololu
Pin RAMPS
6
LCD 4 RS (register select)
PWM D12
D16
12
LCD 6 E (clock)
SDA D17
D17
11
LCD 11 DB4
A1
D23
9
LCD 12 DB5
A2
D25
7
LCD 13 DB6
A3
D27
5
LCD 14 DB7
A4
D29
14
SD, encoder click
SCL D16
D31      

(Piezo Buzzer +)

D33
8
Encoder1
TX1 D11
D35
10
Encoder2
RX1 D10
D37
3
Ground
GND
GND
4
5V
5V
5V

RAMPS AUX-3 / SPI
Ribbon Cable number
Function
Pin Sanguinololu
Pin RAMPS
17
SD Ground
GND
GND

NC

NC
20
SD (SCK pin)
SCK
SCK D52
13
SD (CS pin)
A0
D53
22
SD (DO pin)
MISO
MISO D50
19
SD (DI pin)
MOSI
MOSI D51
21
SD 5V
5V
5V

NC

D49

To quote Ian
"I have managed to connect up the Panelolu kit to my RAMPS board with great success! Everything works except the reset button, as there is no reset pin on RAMPS. I added a piezo electric buzzer as well (from an old PC). Cabling is pretty straightforward, I just needed to trace the connection to the right pin. I built the Panelolu kit as per the Sanguinololu instructions, then used a couple of different sources to work out the correct pins on the RAMPS board. Then all I had to do was uncomment the #define ULTIPANEL line in Marlin. I did check the pins.h file, but it's already all in there for RAMPS. Worked first time!!"
Its now on my todo list to make up a cable to connect to RAMPS, something I intend to use on a dual extruder M90.

Printrboard issues

One of our customers, Bernardo, highlighted an issue with the Printrboard design: the Y-endstop is on the SS pin. Bernardo found the solution on Colin Bradburne's blog which I wont repeat here but if you are intending on using an SD card with Printrboard it is well worth reading his blog.

1 comment:

  1. Actually, there is a Reset on RAMPS 1.3/1.4 boards. The only problem is that it isn't a header, it's a physical button. It would only take about 15 minutes to wire and solder in a second button (in parallel) to the existing one.

    Still, this is a fantastic setup, and I'm putting one together for the Mendel i2 I'm building. Thank you to you and Ian for all the work.

    ReplyDelete