Welcome to the Peptide Dynamics Blog. This blog is an attempt to stimulate and centralize collaboration on dielectric theory and instrumentation of peptides and proteins. This blog is available to everyone. It is moderated, and as such, it is expected to be formal, proper, in good taste, and appropriate to the topics central to this blog. Thank you for your participation in this collaborative effort.
Saturday, October 09, 2021 - 3M donated two 3M MicroTouch M170 17 inch touch screen monitors to IQa 20 years ago. Coupling this touch screen to a Raspberry Pi only seems natural. Getting the drivers to work and calibrate is another daunting task.
Monday, August 23, 2021 - Now that The Fluke PM6306 RCL Meter has provided verifiable complex impedances of standard, trim, and custom capacitors, it's time to jump to the next level of development to create the circuits and software using The Stanford Research SR830 Lock-In Amplifier.
Sunday, August 15, 2021 - The Fluke PM6306 RCL Meter is a GPIB accessible resistive-capacitive-inductive (RCL) meter that automatically will determine the electronic device is being tested and display its electrical properties.
Tuesday, August 10, 2021 - All of the previous blog posts for this year were leading up to effectively communicating from the host Raspberry Pi (RPi) to a remote instrument, in this case, the Rigol MSO8000 Series Mixed-Signal Digital Oscilloscope. A most powerful and potent combination. Herein lies the foundational code to make all of that happen.
Sunday, February 14, 2021 - web2py is a server-side web server designed for processing database and web requests. Its entirely written in the python language. In fact, this very website has been served with web2py for the past 12 years without flaw or crash. It will be used to develope the graphical-user interface of the instrument and allow for real-time event-driven monitoring of the experiment during its operation.
Thursday, February 11, 2021 - PostGreSQL is an excellent relational database system. It runs on all platforms, including the Raspberry, is light-weight, free, and open source.
Monday, February 01, 2021 - GPIB is quite an old communication bus and protocol. But in many ways, its superior to TCP/IP and other modern communication systems. Plus, most of my instruments all have GPIB and its really the only common interface and consistent protocol among them all. I've documented the setup and configuration of GPIB, IEEE488.2, interfacing on a Macintosh for both the NI PCIe-GPIB and NI GPIB-USB-HS interfaces.
Tuesday, January 12, 2021 - PyVISA is a Python package that enables you to control all kinds of measurement devices independently of the interface (e.g. GPIB, RS232, USB, Ethernet).
Saturday, January 09, 2021 - GPIB is a bus system for connecting instruments together with computers. Integrating GPIB for the Raspberry is a necessary step for communicating with legacy and some modern scientific instruments.
Wednesday, January 06, 2021 - The Raspberry Pi (RPi) is a credit-card sized microcomputer costing less than $150, uniquely fashioned as an embedded platform to control instrumentation, run experiments, and monitor and analyze data.
Sunday, December 06, 2020 - Web servers are vital for communicating in our modern world. This blog post walks you through setting up an interactive dynamic web server using CentOS 8 with the Nginx proxy server, Python 3, Web2Py, and PostGreSQL database server.
Thursday, January 12, 2012 - We have provided the technique and software for computer interfacing of the Binder GmbH BD / ED / FD (R3-Controller) Series Incubators. The technique discusses a custom USB interface cable along with software written in National Instruments LabView.
Tuesday, January 10, 2012 - We have provided the LabView drivers to interface a computer to the Stanford Research SR830 and SR850 Lock-in Amplifiers. The drivers use the VISA communication standards to allow interfacing via serial or GPIB cables.