Orders/Alibaba 122x32 LCD Displays

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Organised by Sci.

The LCDs are here: http://eastrising.en.alibaba.com/product/520361167-212974175/LCD_Graphic_Display_122x32.html

I've been quoted $7.50USD (so about £4.62 each) plus about $35 (~£22) postage to the UK for the 4 I'm after. Price might go down a bit if people are interested. I don't know the price-break quantities though.

Revised postage will be $60, plus $9 bank fees. Across 22 items that's a $3.14 (£1.94) fee per unit. Totals per interested party at the bottom.

Lead time is currently 1-2weeks while waiting for new lot of red backlights. Delivery time should be about 5 days from then. Will be notified.


Interested

Red-on-black (ERM12232DNR-1):

  • Sci x4
  • DMI x2
  • Mark Steward x4
  • tgreer x1
  • Jon Fautley (Filbert) x 2

Total: 13

Other items:

  • DMI, x3 dark-blue-on-white (ERM12232GS-1) $6.40ea.
  • Kimball Johnson, x2 dark-blue-on-white (ERM12232GS-1), x1 ERC24064SBS-1 (white on blue) Drrk 22:18, 2 May 2012 (UTC)
  • tgreer x1 (ERM12232GS-1) $6.40ea.
  • asc x2 dark-blue-on-white (ERM12232GS-1) $6.40ea.

Amounts payable

  • Sci (4x ERM12232DNR-1); $42.56 (£26.30) PAID - May 4th, 2012
  • DMI (2x ERM12232DNR-1, 3x ERM12232GS-1); $21.28 + $28.62 = $49.90 (£30.83) PAID - May 4th, 2012
  • Mark Steward (4x ERM12232DNR-1); $42.56 (£26.30) PAID - May 9th, 2012
  • tgreer (1x ERM12232DNR-1, 1x ERM12232GS-1); $10.64 + $9.54 = $20.18 (£12.46) PAID - May 5th, 2012
  • Jon Fautley (Filbert) (2x ERM12232DNR-1); $21.28 (£13.14) PAID - May 4th, 2012
  • Kimball Johnson (2x ERM12232GS-1, 1x ERC24064SBS-1) $19.08 + $17.14 = $36.22 (£22.37) PAID - May 5th, 2012
  • asc (2x ERM12232GS-1) $19.08 (£11.78) PAID - May 8th, 2012

Total: $231.78 (within $0.08 of invoice total) (£143.14)

Order has been placed.

Order has arrived at Sci's home address. Will attempt to deliver them to individuals member-boxes at the weekend unless otherwise instructed.

Usage

The controller appears to be a SED1520 module. An AVR library is here: http://en.radzio.dxp.pl/sed1520/

Pinout

Pin Name Description
1 VSS Power (+5V)
2 VDD Ground (+0V)
3 V5 Contrast adjustment. Connect a rheostat with VSS
4 A0 Command (L) or data (H) register selection input
5 CS1 Left side (61 columns) select input, low active
6 CS2 Right side (61 columns) select input, low active
7 CL External clock signal
8 E-RD Enable signal or read enable clock
9 R/W_W/R Read/write or write enable clock
10 D0 8-bit bi-directional data bus
11 D1
12 D2
13 D3
14 D4
15 D5
16 D6
17 D7
18 RES Hardware reset and interface type selection: High = 68-family MPU, low = 80-family MPU
19 NC No connection
20 NC No connection

Backlight

The backlight is provided by an LED on each side of the display. The top-right and bottom-left pins are +3.3V, and the top-left and bottom-right pins are connected to ground. The datasheet is inconsistent, but suggests either 15mA or 40mA of current per LED.