12 bit dac arduino robots

Reboot the Raspberry Pi. Installing Python libraries and git networking required. If it is already installed, skip this step. In the Terminal, type the following commands, and press Enter:. Download the driver library and run it. Use the IDLE integrated development environment to modify Python programs in a graphical environment.

Use the nano editor to modify Python programs in the Terminal. In the Terminal, enter the following commands:. After entering the commands, a Python program is opened using the nano editor. Why the highest frequency of the waveform provided by the MCP library is only as high as Hz? Is it possible the frequency can be set higher?

For any questions, advice or cool ideas to share, please visit the DFRobot Forum. In addition to be applied in automatic control systems, the DAC module can be use to serve as a function generator to generate sine wave, triangular wave and even arbitrary waveform we provide a library to generate low frequency sin and triangular wave with just a few parameters.

Although the DAC's voltage output accuracy is affected by several factors that cause the actual output voltage to deviate from the user-specified voltage values, the DAC reference voltage, Vref, of the MCP is the same as the supply voltage VCC, and the supply voltage is usually not accurate the actual voltage is not exactly 5. Here, we provide a simple calibration method to eliminate the error caused by the inaccurate reference voltage.

Users are required an additional high-precision digital multimeter to complete the calibration, the specific steps are as follows:. Start the I2C interface of the Raspberry Pi. If it is already open, skip this step. Open Terminal, type the following command, and press Enter:. Reboot the Raspberry Pi. Installing Python libraries and git networking required.

If it is already installed, skip this step. In the Terminal, type the following commands, and press Enter:. Download the driver library and run it.