Orders/Alibaba 122x32 LCD Displays

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.