Difference between revisions of "LCDDisplay"
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| − | [[ | + | [[File:LCDConnexio.jpg]] |
| − | = | + | = Introduction = |
| − | + | The ESP8266 module can be used to control an I2C LCD Display. | |
= Hardware = | = Hardware = | ||
| − | + | Connect the LCD Display to the I2C interface. This display works with 5 volt VCC, but the I2C connections should be "floating". The 2004 display from "Funduino" that we used in our testlab could be connected without levelshifters. | |
| − | == | + | == Connections == |
<span style="color:red"> | <span style="color:red"> | ||
| − | + | WARNING: Some LCD Modules might have pullup resistors to 5 volts VCC. In that case a levelshifter should be used</span> | |
LCD ESP-01 | LCD ESP-01 | ||
| Line 18: | Line 18: | ||
= Software = | = Software = | ||
| + | |||
== Custom sketch == | == Custom sketch == | ||
| + | |||
== ESP Easy == | == ESP Easy == | ||
| + | |||
== ESP Connexio == | == ESP Connexio == | ||
| − | + | Command: | |
''<nowiki>LCDI2CWrite <line>,<column position>, <data command>, <data option></nowiki>'' | ''<nowiki>LCDI2CWrite <line>,<column position>, <data command>, <data option></nowiki>'' | ||
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| − | === | + | === Sample === |
LCDWrite 1,1,Message,1 | LCDWrite 1,1,Message,1 | ||
Revision as of 20:59, 24 August 2015
Contents
Introduction
The ESP8266 module can be used to control an I2C LCD Display.
Hardware
Connect the LCD Display to the I2C interface. This display works with 5 volt VCC, but the I2C connections should be "floating". The 2004 display from "Funduino" that we used in our testlab could be connected without levelshifters.
Connections
WARNING: Some LCD Modules might have pullup resistors to 5 volts VCC. In that case a levelshifter should be used
LCD ESP-01 GND GND VCC - SDA GPIO 0 SCL GPIO 2
Software
Custom sketch
ESP Easy
ESP Connexio
Command:
LCDI2CWrite <line>,<column position>, <data command>, <data option>
| Parameter: | Beschrijving: | Bereik: | Opmerking: |
|---|---|---|---|
| Line | Regelnummer | 1-2 (of 1-4) | |
| Column | Kolom positie | 1-16 (1-20) | |
| data command | Message, Clock, IP, PortInput, Variable, Event | ||
| data option | Indien Message: label id van de tekst die moet worden getoond | Message:1-20 |
Sample
LCDWrite 1,1,Message,1
