D-0006 - Revision history

Yoyojacky: Yoyojacky moved page PCF8574T LCD Driver Board SKU: D-0006 to D-0006

2021-08-27T10:50:37Z

Yoyojacky moved page PCF8574T LCD Driver Board SKU: D-0006 to D-0006

← Older revision	Revision as of 18:50, 27 August 2021
(No difference)

Yoyojacky: /* Application Scenario */

2020-03-27T07:45:43Z

Application Scenario

← Older revision		Revision as of 15:45, 27 March 2020
Line 290:		Line 290:
	* Control-Any-Devices-Using-Raspberry-PI-and-PCF8574: [ https://www.instructables.com/id/Control-Any-Devices-Using-Raspberry-PI-and-PCF8574/ ]		* Control-Any-Devices-Using-Raspberry-PI-and-PCF8574: [ https://www.instructables.com/id/Control-Any-Devices-Using-Raspberry-PI-and-PCF8574/ ]
	* I2C-1602-LCD: [https://github.com/VeggieVampire/I2C-1602-LCD]		* I2C-1602-LCD: [https://github.com/VeggieVampire/I2C-1602-LCD]
			==Keywords==
			* PCF8574T, LCD1602, driver board, LCD driver board

Yoyojacky: /* Python Demo Code */

2020-03-27T07:44:57Z

Python Demo Code

Show changes

Yoyojacky: /* Package Includes */

2020-03-27T07:34:59Z

Package Includes

← Older revision		Revision as of 15:34, 27 March 2020
Line 27:		Line 27:

	==Package Includes==		==Package Includes==
			* 1 x PCF8574T LCD Driver Board

	==Reference==		==Reference==
	* PCF8574T Chip Datasheet: [[ File:PCF8574T Datasheet.pdf ]]		* PCF8574T Chip Datasheet: [[ File:PCF8574T Datasheet.pdf ]]

Yoyojacky: /* Gallery */

2020-03-27T07:34:32Z

Gallery

← Older revision		Revision as of 15:34, 27 March 2020
Line 17:		Line 17:

	==Gallery==		==Gallery==
			{\|
			\|[[File:D 0006 1.jpg\|left\|320px]]
			\|[[File:D 0006 2.jpg\|none\|320px]]
			\|[[File:D 0006 4.jpg\|none\|320px]]
			\|}
			===Dimenssion===
			[[File:D 0006 6.jpg\|left\|500px]]
			<br style="clear:both;">

	==Package Includes==		==Package Includes==
	==Reference==		==Reference==

Yoyojacky: /* PCF8574T LCD Driver Board */

2020-03-27T07:31:09Z

PCF8574T LCD Driver Board

← Older revision		Revision as of 15:31, 27 March 2020
Line 1:		Line 1:
	==PCF8574T LCD Driver Board==		==PCF8574T LCD Driver Board==
			[[File:D 0006 1.jpg \|right \|500px]]

	==Description==		==Description==
	The PCF8574T IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. <br>		The PCF8574T IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. <br>

Yoyojacky: /* Features */

2020-03-19T05:51:20Z

Features

← Older revision		Revision as of 13:51, 19 March 2020
Line 7:		Line 7:

	==Features==		==Features==
			* PCF8574T Chip
			* I2C interface
			* 8-bit parallel port
			* Potentiometer Backlight control
			* LED jumper switch
			* Default I2C address: 0x27

	==Gallery==		==Gallery==
	==Package Includes==		==Package Includes==

Yoyojacky: /* Description */

2020-03-19T05:47:02Z

Description

← Older revision		Revision as of 13:47, 19 March 2020
Line 1:		Line 1:
	==PCF8574T LCD Driver Board==		==PCF8574T LCD Driver Board==
	==Description==		==Description==
			The PCF8574T IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. <br>
			Up to 8 PCF8574T IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports.<br>
			The PCF8574T IO Expansion Board features allowing the use of multi module connected to the I2C bus at the same time by connecting the pinheader and connector.<br>
			There is a small potentiometer onboard, which can adjust the backlight of LCD1602 or LCD2004, and a jumper cap to control the switch of the LED light.

	==Features==		==Features==
	==Gallery==		==Gallery==

Yoyojacky: Created page with "==PCF8574T LCD Driver Board== ==Description== ==Features== ==Gallery== ==Package Includes== ==Reference== * PCF8574T Chip Datasheet: File:PCF8574T Datasheet.pdf * Wirin..."

2020-03-19T04:00:00Z

Created page with "==PCF8574T LCD Driver Board== ==Description== ==Features== ==Gallery== ==Package Includes== ==Reference== * PCF8574T Chip Datasheet: File:PCF8574T Datasheet.pdf * Wirin..."

New page

==PCF8574T LCD Driver Board==
==Description==
==Features==
==Gallery==
==Package Includes==
==Reference==
* PCF8574T Chip Datasheet: [[ File:PCF8574T Datasheet.pdf ]]
* WiringPi: [ http://wiringpi.com/extensions/i2c-pcf8574/ ]
* telecnatron:[ https://telecnatron.com/articles/Utility-To-Control-1602-LCD-On-Raspberry-Pi-Via-A-PCF8574-I2C-Backpack-Module/index.html]
* Circuitbasics:[ https://www.circuitbasics.com/raspberry-pi-i2c-lcd-set-up-and-programming/ ]
==Demo Code For Handle PCF8574T==
* Download and reinstall wiringPi liberary
<pre>
sudo apt -y purge wiringpi
hash -r
cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
</pre>
* C++ language
<pre>
#include <stdio.h>
#include <time.h>
#include <string>

#include <wiringPi.h>
#include <pcf8574.h>

using namespace std;
int main (int argc, char *argv[]){
printf("Raspberry Pi initializing...\n");

wiringPiSetup();
pcf8574Setup(100, 0x38);

for (int i = 0; i < 8; ++i){
pinMode(100 + i, OUTPUT);
}

int b=0;
while( 1==1 ){
printf("LOOP %u\n", b);
for (int i = 0; i < 8; ++i){
digitalWrite(100 + i, i==b ? 0 : 1);
}
b++;
if( b >= 8 ) b=0;
delay(1000);

}

delay(1000);
digitalWrite(100 + 0, 0);

delay(1000);
digitalWrite(100 + 0, 1);

return 0;
}
</pre>
* Compile and run it.
<pre>
g++ pcf8574.cpp -o pcf8574 -lwiringPi -std=c++11
./pcf8574
</pre>
===Python Demo Code===