cspark

USB powered, programmable Geiger Counter Module

This programmable HV board with USB/UART/I2C interfaces has an on-board 12-bit DAC, an HV boost module, and some electronics for pulse counting, making it a handy tool for labs/OEMs. Measure radioactivity with ease!

It is programmable via SCPI commands sent over the USB/UART ports, and is also accessible via the I2C port which has 3 configurable addresses. I2C support is built into SEElab's I2C logger app where it is listed as one of the supported sensors (Programmer's manual )

The webapp is available at https://jithinbp.in/gmcounter.html and is accessible via web browsers with webusb enabled. The android app is here: https://play.google.com/store/apps/details?id=com.cspark.research.gmc&pcampaignid=web_share . Manufactured by my startup CSpark Research

The WebApp and Visual Programming

The web app is capable of plateau recording, counting, and protecting tubes from very high count rates (Continuous Emission)

The webapp is available online and works with webusb supported browsers such as Chrome. It can set the voltage, use the counting features, and also automatically plot the GM tube characteristics. The built-in tube protection features are configurable.

The Android app and visual programming

The android app is similar, but also includes a visual programming interface like MIT-Scratch which lets you drag and drop blocks to write simple automations. JS code editing is also possible. No external power supply is needed, and you can simply power it off of USB.

Walkthrough Video For the Module

Connecting with SEELab 3.0

Board connected to SEElab 3.0 to record counts via the I2C sensor logger

SEELab's I2C logger showing the GM counter recorder options

The G M Counter device for educational institutions with a display and control knobs (+USB Access) and a high quality GM tube with Mica window

Large Format GM counter for Colleges/Schools

User Manual for this one: https://gmcounter-docs.readthedocs.io/en/latest/

Measuring Rotational Speed with the Stroboscopic Effect using SEELab 3.0

Have you ever noticed helicopter blades or car wheels appearing to rotate backward—or stay completely still—on camera or under flickering streetlights? This fascinating visual phenomenon is known as the Stroboscopic Effect. Using SEELab 3.0 (or ExpEYES hardware), you can easily demonstrate this optical illusion in the lab

Mechanics Experiments with SEELab3: Displacement Measurements using VL53L0X LIDAR & SR04 Echo Module

Using SEELab3 with distance sensors like the VL53L0X LIDAR or the HC-SR04 Ultrasonic Echo Module allows you to accurately capture real-time spatial coordinates for dynamic mechanics experiments. 1. Wiring & Sensor Connections A. VL53L0X Laser LIDAR (I2C Interface) The VL53L0X uses standard I2C communication to transfer distance measurements back to

LCR Series Response and Transient Analysis with SEELab

This tutorial walks you through analyzing the steady-state frequency response and transient step response of a series LCR circuit. We will design the circuit, calculate the theoretical values using an online simulator, and validate them with real-world hardware using SEELab. Here's a video of the whole process with

Scientific instruments as state machines: A case study, SEELab 3.0

The SEELab 3 hardware SEELab is a USB powered, multi-purpose data acquisition and control instrument that can be used to automate various test and measurement tasks via its companion android app, or desktop software. It is primarily intended for use in Physics and electronics laboratories in order to enable students