描述

樹莓派 Raspberry Pi – 20×4 LCD Master Board

一、Rs-Pi LCD Master can plug-in 84×48 LCD , 16×2 LCD, 20×4 LCD

Rs-Pi-2004-LCD Master  plug in Raspberry Pi

二、產品特色

1. 5 GPIO (7,8,9,10,11) control Micro Switch

2. back light control circuit can control by software

3. support our Pi_Scratch software    Detail

4. 10k Trimpot for LCD contrast control

5. 2 i2c device input port J7 (GND, 5V,SDA,SCL)  &  J8 (GND,3V3,SDA,SCL)

J7 with Logic Level converter

6. support Gordon Henderson  LCD library

command  “LCD2004g ” + “init”   initial  GPIO 20×4 LCD

command   “LCD2004 ” + “X , Y ” + ” MESSAGE”   Display message to LCD in location  x,y

command  “LCD2004 ” + “cls”   clean screen

command  “LCD2004 ”  + “bl ” + “on/off”  LCD back light ON / OFF

command  “LCD2004 ” + “X , Y ” + ” wip”   Display WiFi IP  to LCD in location  x,y

command  “LCD2004 ” + “X , Y ” + ” eip”   Display Ethernet IP to LCD in location  x,y

command  “LCD2004 ” + “X , Y ” + ” time”   Display Time to LCD in location  x,y

command  “LCD2004” + “X , Y ” + ” date”   Display Time to LCD in location  x,y

三、RSS function ( Scrolling text Display top 3 News message)

BBC world news RSS feed

command “LCD2004g init”   initial  GPIO 20×4 LCD

command “LCD2004 rss 10”   Active RSS function (need have internet ready)

四、New command 08,Jan,2014 update

command   “LCD2004 ” + “X , Y ” + ” ram”   Display RAM usage  in location  x,y

command   “LCD2004 ” + “X , Y ” + ” wifi” + “ ip”  Display WiFi IP  in location  x,y

command   “LCD2004 ” + “X , Y ” + ” wifi” + ” ssid”   Display WiFi SSID in location  x,y

command   “LCD2004 ” + “X , Y ” + ” wifi” + ” gsig”   Display wifi signal with bar chart in location  x,y

五、support Gordon  wiringPi LCD library and  c code

 

六、範例程式下載

LCD 2004 Program  

七、產品特色

1x Rs-Pi LCD  Master board  with 20×4 character LCD

1x User Manual