Difference between revisions of "Orders/Alibaba 122x32 LCD Displays"

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=== Amounts payable ===
 
=== Amounts payable ===
  
* Sci (4x ERM12232DNR-1); $42.56 '''(£26.30)'''
+
* <s>Sci (4x ERM12232DNR-1); $42.56 '''(£26.30)'''</s> PAID - May 4th, 2012
 
* <s>DMI (2x ERM12232DNR-1, 3x ERM12232GS-1); $21.28 + $28.62 = $49.90 '''(£30.83)'''</s> PAID - May 4th, 2012
 
* <s>DMI (2x ERM12232DNR-1, 3x ERM12232GS-1); $21.28 + $28.62 = $49.90 '''(£30.83)'''</s> PAID - May 4th, 2012
* Mark Steward (4x ERM12232DNR-1); $42.56 '''(£26.30)'''
+
* <s>Mark Steward (4x ERM12232DNR-1); $42.56 '''(£26.30)'''</s> PAID - May 9th, 2012
* tgreer (1x ERM12232DNR-1, 1x ERM12232GS-1); $10.64 + $9.54 = $20.18 '''(£12.46)'''
+
* <s>tgreer (1x ERM12232DNR-1, 1x ERM12232GS-1); $10.64 + $9.54 = $20.18 '''(£12.46)'''</s> PAID - May 5th, 2012
* Jon Fautley (Filbert) (2x ERM12232DNR-1); $21.28 '''(£13.14)'''
+
* <s>Jon Fautley (Filbert) (2x ERM12232DNR-1); $21.28 '''(£13.14)'''</s> PAID - May 4th, 2012
* Kimball Johnson (2x ERM12232GS-1, 1x ERC24064SBS-1) $19.08 + $17.14 = $36.22 '''(£22.37)'''
+
* <s>Kimball Johnson (2x ERM12232GS-1, 1x ERC24064SBS-1) $19.08 + $17.14 = $36.22 '''(£22.37)'''</s> PAID - May 5th, 2012
* asc (2x ERM12232GS-1) $19.08 '''(£11.78)'''
+
* <s>asc (2x ERM12232GS-1) $19.08 '''(£11.78)'''</s> PAID - May 8th, 2012
  
 
'''Total:''' $231.78 (within $0.08 of invoice total) (£143.14)
 
'''Total:''' $231.78 (within $0.08 of invoice total) (£143.14)
 +
 +
<s>Order has been placed.</s>
 +
 +
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 ===
 +
 +
{|class="wikitable"
 +
! 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 ||rowspan="8"| 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. Looking from the front of the LCD module, 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.
 +
 +
[[Category:Orders]]

Latest revision as of 21:38, 20 March 2014

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. Looking from the front of the LCD module, 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.