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add hd44780 pinout info

Ondřej Hruška 2 years ago
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Signed by: Ondřej Hruška <ondra@ondrovo.com> GPG key ID: 2C5FD5035250423D
1 changed files with 12 additions and 1 deletions
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      README.md

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README.md View File

@@ -7,11 +7,22 @@ LCD is HD44780, 2-line.
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 ## Pinout
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 - D2 - RS
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-- D3 - RW
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+- D3 - R/W
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 - D4 - E
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 - D5..D8 - DATA4..7
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 - D9 - 1-Wire data, 4k7 pullup to 5V
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+## HD44780 connection
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+
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+- GND
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+- +5
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+- contrast (potentiometer +5 - GND)
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+- RS
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+- R/W
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+- E
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+- D0-D3 ... to GND
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+- D4-D7 ... communication
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+
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 ## Usage
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 Everything is automatic, just connect 1-Wire devices to the data pin.