velleman MM110 Digital to Analog Converter User Manual
- June 1, 2024
- Velleman
Table of Contents
velleman MM110 Digital to Analog Converter
Specifications
- Model: MM110
- Type: Digital to Analog Converter
- Communication Protocol : I2C
- Power Source : 5V
- Manufacturer: Velleman nv
- Website: www.vellemanprojects.eu
Product Usage Instructions
Connection Setup
- Identify the SDA and SCL pins for I2C communication.
- Connect the GND pin to the black wire (negative power source).
- Connect the Red wire to the 5V pin (positive power source).
- Ensure that the A0 Jumper is set according to your requirements.
- Wire the Arduino to the breakout board containing the DACMicrochip following the provided diagram.
Powering On
- After connecting all the wires, power on the device by applying power to the 5V pin.
- Check for any indicator lights or LED signals to confirm the device is powered.
Troubleshooting
If you encounter any issues with the setup or operation, refer to the user manual or contact Velleman support for assistance.
INSTALLATION INSTRUCTION
This breakout board hosts an MCP4725A0T-E/CH DAC (Digital to Analog Converter) integrated circuit, manufactured by Microchip, and capable of a 12-bit resolution. It integrates an EEPROM and has an I²C-Bus connection available (the address may be selected via the A0 jumper, by setting it to + or -; the other two bits from the bus’ address are internally fixed, thus you may connect the same bus to two DACs at most). The integrated circuit is powered using a single voltage, with a value between 2.7 and 5.5 volts (in our board it operates using the 5 V applied between the 5V and GND contacts). It has the rail-to-rail function available on the output, thus it may supply from 0 to 5 volts.
- The internal EEPROM allows to saving of the input configuration using the same I²C interface. The non-volatile memory allows the DAC to keep the input data, in case of a blackout, so as to represent the voltage corresponding to the analog output, once that a power source is sup-plied.
- The data connections for power supplies and outputs are available, even in this board, and they are both on the sides and on the spacing 2.54mm bonding pads, to which to apply a pin-strip.
The here-introduced breakout board uses an integrated circuit that
may be interfaced with Arduino, and that can be used along with it, thanks to
the library that can be downloaded from the webpage concerning the product’s
datasheet, at
www.futurashop.it. Therefore, to manage the module
mounting a MCP4725A0T, from Arduino, the first thing is needed to copy the
library into Arduino IDE’s “\libraries” directory, and then boot the IDE and
open the example supplied. Now that the example is loaded, it is very
important to take care of setting the module’s address in the sketch.
- We would like to remind you that it is possible to select two different addresses on the module, using the “A0” jumper.
- If it is closed towards “-“, we will have to state that the address is 0x60, while if it is closed towards “+”, the address will be 0x61. It is possible to connect the breakout board to Arduino, as shown in Fig. 1. The breakout board’s SCL and SDA
pins must be connected to the corresponding ones in the Arduino board, which is also capable of supplying the power needed to operate the board. In the picture an an oscilloscope is also connected, to have a confirmation of the sinusoidal waveform that we will obtain by executing the sketch from Arduino.
Wiring between Arduino and the breakout board containing DAC Microchip
CONTACT
- WWW.VELLEMANPROJECTS.EU
- FB: VellemanProjects
- TWITTER: @Vel_Projects
- VELLEMAN nv – Legen Heirweg 33, Gavere (Belgium)
- vellemanprojects.com
Frequently Asked Questions
- Q: What is the default setting for the A0 Jumper?
- A: The default setting varies based on the specific use case. Please refer to the user manual for guidance on configuring the A0 Jumper.
- Q: Can I use a different power source other than 5V?
- A: It is recommended to use a 5V power source as specified to ensure the proper functioning of the digital-to-analog converter.
- Q: How do I know if the device is communicating correctly over I2C?
- A: You can use appropriate monitoring tools or check for communication status indicators on your setup to verify I2C communication.