JOY-IT DEBO DAC MCP4725 Instructions

DIGITAL- ANALOG CONVERTER

COM-DAC01

1. GENERAL INFORMATION

Dear customer,
thank you very much for choosing our product.
In the following, we will introduce you to what to observe while starting
up and using this product.
Should you encounter any unexpected problems during use, please do
not hesitate to contact us.

2. CHANGE I2C ADDRESS

You can change the I2C address of this converter by means of a soldering

bridge. Thereby, the address will change from 0x60 to 0x61 aer solde-

ring.

Soldering bridge Address

L 0x60

H 0x61

3. USAGE WITH THE RASPBERRY PI

3.1 Connection

The analog output of the converter is at the pin OUT.

3.2 Code example

First, enable the I2C interface of your Raspberry Pi. To do this, enter the
following command into your terminal.

COM-DAC01 Raspberry Pi

OUT -

GND -

SCL GPIO 3

SDA GPIO 2

VCC 3.3 V

GND GND

sudo raspi-config

There, select

3 Interface Options → I5 I2C

.

There, activate I2C.

sudo apt-get install git

sudo git clone https://github.com/adafruit/Adafruit_CircuitPython_MCP4725.git

To use the digital-analog converter, we use the

Adafruit_CircuitPython_MCP4725 library, which is published by
Adafruit under the licenses

MIT, Unlicense

and

CC-BY-4.0

. Now, run the

following commands to install this library.

sudo apt-get update

You have now successfully installed the library. In this library are sample

codes, which you can use with slight editing. To do this, execute the follo­wing commands.

cd Adafruit_CircuitPython_MCP4725/

sudo python3 setup.py install

cd examples/

sudo nano mcp4725_simpletest.py

sudo apt-get install python3-pip

Please note that if you have changed the I2C address before, you have to
edit line 16 accordingly:

# Initialize I2C bus.

i2c = busio.I2C(board.SCL, board.SDA)

# Initialize MCP4725.

dac = adafruit_mcp4725.MCP4725(i2c,address=0x61)

Now, close the file with CTRL + O and CTRL + X. You can now run the
sample code with the following command.

python3 mcp4725_simpletest.py

Now add the I2C address in line 16:

# Initialize I2C bus.

i2c = busio.I2C(board.SCL, board.SDA)

# Initialize MCP4725.

dac = adafruit_mcp4725.MCP4725(i2c,address=0x60)

4. USAGE WITH THE ARDUINO

4.1 Connection

COM-DAC01 Arduino

OUT -

GND -

SCL A4

SDA A5

VCC 5 V

GND GND

The analog output of the converter is at the pin OUT.

4.2 Code example

For this converter, we use the Adafruit_MCP4725 library from Adafruit,
which was released under the

BSD license

. You can find and install this

in your Arduino IDE under

Sketch → Include Library → Manage Librari-

es… .

Aer installation, you can find the sinewave example file under

File → Examples → Adafruit MCP4725

. However, before you can run it,

you have to adjust the I2C address in line 181.

void setup(void) {

Serial.begin(9600);

Serial.println("Hello!");

// For Adafruit MCP4725A1 the address is 0x62 (default) or 0x63 (ADDR pin tied to VCC)

// For MCP4725A0 the address is 0x60 or 0x61

// For MCP4725A2 the address is 0x64 or 0x65

dac.begin(0x60);

Serial.println("Generating a sine wave");

}

PRODUKTTITEL

Untertitel

5. ADDITIONAL INFORMATION

Our information and take-back obligations according
to the Electrical and Electronic Equipment Act
(ElektroG)

Symbol on electrical and electronic equipment:

This crossed-out dustbin means that electrical and electronic appliances

do not belong in the household waste. You must return the old applianc-

es to a collection point.
Before handing over waste batteries and accumulators that are not en­closed by waste equipment must be separated from it.

Return options:

As an end user, you can return your old device (which essentially fulfils
the same function as the new device purchased from us) free of charge
for disposal when you purchase a new device.
Small appliances with no external dimensions greater than 25 cm can be
disposed of in normal household quantities independently of the pur­chase of a new appliance.

Possibility of return at our company location during opening hours:

SIMAC Electronics GmbH, Pascalstr. 8, D-47506 Neukirchen-Vluyn, Germa­ny

Possibility of return in your area:

We will send you a parcel stamp with which you can return the device to
us free of charge. Please contact us by email at [e-mail] or by
telephone.

Information on packaging:

If you do not have suitable packaging material or do not wish to use your
own, please contact us and we will send you suitable packaging.

6. SUPPORT

If there are still any issues pending or problems arising aer your purcha-

se, we will support you by e-mail, telephone and with our ticket support

system.
Email: [e-mail]

Ticket system: http://support.joy-it.net
Telephone: [phone] (10-17 o‘clock)

For further information please visit our website:

www.joy-it.net

Published: 16.03.2022

www.joy-it.net

SIMAC Electronics GmbH

Pascalstr. 8, 47506 Neukirchen-Vluyn

Now, you can run your program by clicking the Upload button. However,
before doing so, make sure that the Port and Board are correctly selec­ted under

Tools

.