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--- electronic:lcd:metp0000 [2018/10/09 23:54] – tony
+++ electronic:lcd:metp0000 [2026/09/26 05:12] (current) – tony
@@ Line 1: / Line 1: @@
-{{ :electronic:lcd:pa101844a.jpg?200|METP0000}}
+{{ :electronic:lcd::pa101833a.jpg?200|METP0000}}
-^<html><p style="text-align:center">LCD Description</p></html>||
+^  LCD Description  ||
 ^Model|**METP0000**|
 ^Manufacturer|Mettler  Toledo|
-^Recovered from|Mettler  Toledo  Model  8217 scale |
+^Recovered from|Mettler  Toledo  Model  8217 weigh scale|
-^LCD type||
+^Board IDs|OPCVO, METP0000 REV B|
-^Polarizer type||
+^LCD type|positive|
-^Columns|6|
+^Polarizer type|reflective|
+^Columns|6 ((a 7th, undisplayed, digit is used to control some of the under-bar elements))|
 ^Rows|1|
-^Char matrix|7 segment with underscore and comma|
+^Char matrix|7 segment with decimal point and comma, plus 5 under-bar elements|
-^Driver IC|Nec uPD7225 (({{:electronic:datasheet:nec:upd7225.pdf}})|
+^Driver IC|NEC D7225GB (μPD7225)  (({{:electronic:datasheet:nec:upd7225.pdf}})) (({{electronic:datasheet:nec:upd7225_ap_note.pdf}})) (({{https://ia801305.us.archive.org/4/items/bitsavers_necdatabooMicrocontrollerDataBook_57118308/1990_NEC_Single-Chip_Microcontroller_Data_Book.pdf|NEC 1990 Microcontroller Databook, page #826}}))|
 ^Backlight|-|
-^Arduino driver||
+^Arduino driver|[[:arduino:metp0000_driver_library|METP0000 driver library]]|
 ^Connector|RJ45|
 ^Num Pins|8|
-^Pin spacing|"|
+^Pin spacing| |
-^ ^^^Arduino test rig ((reminder for my personal testing, not useful for anyone else!))||
+^  Connector pin-out  ^^^^  Arduino test rig ((colour coding of wires in a re-purposed ethernet cable))  ||
-^Pin#^IC pin^Label^Pin^colour|
+^Pin#^Label^IC pin^Label^Pin^colour|
-^1||Busy|-|white/orange|
+^1|Busy| |~Busy|D10 ((optional when using Arduino driver library))|white/orange|
-^2||Reset|D7|orange|
+^2|Reset| |~Reset|D7 ((not needed by Arduino driver library))|orange|
-^3||Si|D5|white/green|
+^3|Si| |Si|D5|white/green|
-^4||SClk|D4|blue|
+^4|SClk| |~SCK|D4|blue|
-^5||CS|D8|white/blue|
+^5|CS| |~CS|D8|white/blue|
-^6||~C/D|D6|green|
+^6|~C/D| |C/~D|D6 ((not needed by Arduino driver library))|green|
-^7||Gnd|GND|white/brown|
+^7|GND|20|Vss|GND|white/brown|
-^8||+5V|+5V|brown|
+^8|+5V|21|Vdd|+5V|brown|
-\\
 \\
+\\
 ----
-===== Examples : =====
+===== Examples =====
-{{:electronic:lcd:pa101844a.jpg?800|METP0000}}
 {{:electronic:lcd:pa101833a.jpg?800|METP0000}}
@@ Line 44: / Line 43: @@
 {{:electronic:lcd:pa101840a.jpg?300|METP0000}}
+{{:electronic:lcd:pb222808a.jpg?800|METP0000}}
+{{:electronic:lcd:pb222808b.jpg?200|METP0000}}

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