Projects on Electronic Lab

Controlling an RND/Korad Bench Power Supply from Python

Sat, 13 Feb 2021 00:25:00 +0100

An app for controlling the RND 320-KA3005P bench power supply from a computer. The RND 320-KA3005P is a rebranded Korad KA3005P (0–30 V, 0–5 A), so the app also works with the Korad and other supplies from the same series.

Raspberry Pi Digital Clock in Python

Sun, 31 Jan 2021 17:53:00 +0100

A Raspberry Pi with a small HDMI display as a digital clock. It is overkill for just a clock, but it is a good base for future projects: an info display that shows the temperature next to the time, the state of the house, or controls the lights.

Split-Rail Linear Power Supply ±15 V

Wed, 30 Dec 2020 10:00:00 +0100

A simple split-rail linear power supply for experiments with low-power amplifiers and audio signals. The project is easy to build and does not take much time, and a supply like this is good to have in the workshop.

Bench Power Supply with Three Adjustable Outputs

Sat, 13 Jan 2018 21:02:00 +0100

Today I finished a project I started a few months ago: a three-channel desktop power supply with adjustable output voltage. In the future I would like to add an adjustable current limit, but that is a story for another time.

Peak Voltage Detector for a Sine Wave Generator

Thu, 11 Jan 2018 23:59:00 +0100

I recently built a 1 kHz sine wave generator with adjustable amplitude. It works great and is well suited for testing and repairing audio amplifiers. I thought it would be nice to fit a small panel voltmeter that shows the output voltage.

Arduino Two-Channel Voltmeter with Thermometer

Tue, 09 Jan 2018 23:58:00 +0100

A two-channel voltmeter with a thermometer, built as a shield for the Arduino Uno. It measures two DC voltages up to 40 V and the temperature, and shows everything on a small OLED display.