KS0508 Keyestudio PCF8591 AD Adapter Module - Revision history

Keyestudio: /* Technical parameters */

2021-10-20T08:30:58Z

Technical parameters

← Older revision		Revision as of 08:30, 20 October 2021
Line 13:		Line 13:
	== Technical parameters ==		== Technical parameters ==

	Working voltage: DC 5V		* Working voltage: DC 5V
	Main chip: PCF8591		* Main chip: PCF8591
	Communication method: I2C communication		* Communication method: I2C communication
	Pin header spacing: 2.54mm		* Pin header spacing: 2.54mm
	Size: 23.2mm23.12mm11.5mm		* Size: 23.2mm23.12mm11.5mm
	Weight: 2.2g		* Weight: 2.2g
	Environmental protection attributes: ROHS		* Environmental protection attributes: ROHS
	Aperture: 3mm		* Aperture: 3mm
			*

	== Wiring Diagram ==		== Wiring Diagram ==

Keyestudio at 04:27, 6 August 2020

2020-08-06T04:27:31Z

← Older revision		Revision as of 04:27, 6 August 2020
Line 93:		Line 93:

	Press Ctrl+C to exit the test program		Press Ctrl+C to exit the test program

			=='''Resources''' ==

			Test Code:
			https://fs.keyestudio.com/KS0508

Keyestudio at 04:23, 6 August 2020

2020-08-06T04:23:30Z

← Older revision		Revision as of 04:23, 6 August 2020
Line 1:		Line 1:
	<br>[[File:Ks0508-1.png\|~~500px~~\|frameless\|thumb]]<br>		<br>[[File:Ks0508-1.png\|right\|400px\|frameless\|thumb]]<br>

	== Description ==		== Description ==
Line 78:		Line 78:
	<br>[[File:Ks0508-8.png\|500px\|frameless\|thumb]]<br>		<br>[[File:Ks0508-8.png\|500px\|frameless\|thumb]]<br>

	~~<br>[[File:Ks0508-9.png\|500px\|frameless\|thumb]]<br>~~

	1.Set up a folder named KS0508 in Raspberry Pi system and leave KS0508.c file into KS0508 folder.		1.Set up a folder named KS0508 in Raspberry Pi system and leave KS0508.c file into KS0508 folder.
Line 91:		Line 90:


	<br>[[File:~~KS0040 (5)~~.~~jpg~~\|500px\|frameless\|thumb]]<br>		<br>[[File:Ks0508-9.png\|500px\|frameless\|thumb]]<br>

	Press Ctrl+C to exit the test program		Press Ctrl+C to exit the test program

Keyestudio at 04:20, 6 August 2020

2020-08-06T04:20:28Z

← Older revision	Revision as of 04:20, 6 August 2020
Line 1:	Line 1:
		<br>[[File:Ks0508-1.png\|500px\|frameless\|thumb]]<br>

		== Description ==

		The analog input and output ports are needed when doing experiment with Raspberry Pi control board.
		Without analog ports on Raspberry Pi board, therefore, we design this adapter board to convert digital value into analog value.

		This module primarily adopts PCF8591chip, including one I2C communication interface, 4 analog input and 1 output ports. The address, control and data signals are transmitted by the serial way of dual wire and direction. Meanwhile, the 2 indicators on the module are controlled by analog output values.
		In addition, the location holes of module contribute to fix module on the other device.
		Note: There is a pad hole at silk print PCF8591, which is the Aout port.
		You need to solder the pins at Aout port if linking with other circuit.

		== Technical parameters ==

		Working voltage: DC 5V
		Main chip: PCF8591
		Communication method: I2C communication
		Pin header spacing: 2.54mm
		Size: 23.2mm23.12mm11.5mm
		Weight: 2.2g
		Environmental protection attributes: ROHS
		Aperture: 3mm

		== Wiring Diagram ==

		<br>[[File:Ks0508-2.png\|500px\|frameless\|thumb]]<br>

		<br>[[File:Ks0508-3.png\|500px\|frameless\|thumb]]<br>

		== Test Code ==
		<pre>
		#include <wiringPi.h>
		#include <pcf8591.h>
		#include <stdio.h>
		#define Address 0x48
		#define BASE 64
		#define A0 BASE+0
		#define A1 BASE+1
		#define A2 BASE+2
		#define A3 BASE+3

		int main(void)
		{
		unsigned char value;
		wiringPiSetup();
		pcf8591Setup(BASE,Address);

		while(1)
		{
		value=analogRead(A0);
		printf("A0:%d\n",value);
		analogWrite(BASE,value); //Write the value to be output at AOUT end
		printf("AOUT:%d\n",value); //Print the output value of AOUT end

		delay(100);
		}
		}

		</pre>

		== Test Results ==

		In the experiment, we connect the module to the Raspberry Pi 4B control board and wire up.
		a.Since iic communication is used, enable the iic communication function of the Raspberry Pi as follows:
		Raspberry Pi does not enable the I2C function by default. Enter sudo raspi-config in the terminal to enter the Raspberry Pi configuration interface.

		<br>[[File:Ks0508-4.png\|500px\|frameless\|thumb]]<br>

		b. Enable the I2C function of Raspberry Pi as follows:


		<br>[[File:Ks0508-5.png\|500px\|frameless\|thumb]]<br>

		<br>[[File:Ks0508-6.png\|500px\|frameless\|thumb]]<br>

		<br>[[File:Ks0508-7.png\|500px\|frameless\|thumb]]<br>

		<br>[[File:Ks0508-8.png\|500px\|frameless\|thumb]]<br>

		<br>[[File:Ks0508-9.png\|500px\|frameless\|thumb]]<br>

		1.Set up a folder named KS0508 in Raspberry Pi system and leave KS0508.c file into KS0508 folder.
		2.Execute the command at the terminal, control the brightness of Aout LED of Keyestudio PCF8591 A/D adapter board by external potentiometer and print the read the value at the terminal.


		cd /home/pi/KS0508
		ls
		gcc KS0508.c -o KS0508 -lwiringPi
		ls
		sudo ./KS0508


		<br>[[File:KS0040 (5).jpg\|500px\|frameless\|thumb]]<br>

		Press Ctrl+C to exit the test program

Keyestudio: Created blank page

2020-08-06T04:05:19Z

Created blank page

New page