A simple Python module to control the inexpensive MHS2300A signal generator.
Affordable signal generators have allowed to the maker community to build their own electrocnic laboratory. In particular, the MHS2300A represents an entry-level test and measurement equipment for electronic engineers, electronic laboratories, production lines and teaching and scientific research. The MHS2300A has two channels with multiple tunable parameters that can be changed using the built-in button functions but there is the possibility of controlling it from a computer using the right protocol. However, one compromise I have encountered is that we are limited to the GUI provided by the company. Here, I present a module to control this signal generator with Python.
- Pyserial and Cached_property packages need to be installed
pip install mhs2300a
First, we import the MHS2300 module
from mhs2300a import MHS2300
Then, we create the object that handles the Signal Generator. For that, we need to specify the serial port we are going to use:
- Windows: COM_
- Linux: /dev/ttyUSB0
port_name = "COM3" signal = MHS2300(port_name)
By default, the signal generator enable both channels. We can enable or disable each channel independently using the built-in methods on or off and specifying the channel.
# Enables on channel 2 signal.on(2) # Disables channel 1 signal.off(1)
Similarly, it is possible to modify each of the following parameters:
# Sets the amplitude of the channel 2 to 5 Volts signal.Amplitude(2,5) # Sets the frequency of the channel 2 to 5 Hertz signal.Frequecy(2,5) # Sets the phase of the channel 2 to 10 signal.Phase(2,10) # Sets the phase of the channel 1 to 5% signal.Offset(1,5) # Sets the phase of the channel 1 to 3 signal.Duty(1,3)
We can close the communication with the signal generator