Presenting the uRADMonitor API Helper program If you want to connect a custom sensor to the uRADMonitor network, you need to register a new device and obtain a Device ID before you can start uploading data. To help others, I’ve created a little program that allows you to easily register your own custom sensor to […]
Introduction The goal of this project was to bring data from two different measuring devices I use into the uRADMonitor network: a GQ RadonPro for measuring radon concentration and ionizing radiation, and an AirGradient Open Air O-1PST for monitoring outdoor air quality. Both devices are connected to Home Assistant, which made it a natural bridge […]
I have been testing an independent ESPHome-based bridge that connects a RadiationD-v1.1 (CAJOE) Geiger counter board to both Home Assistant and uRADMonitor. One ESP8266, two integrations The pulse output is connected to D1 / GPIO5 on the ESP8266. ESPHome counts the pulses locally, exposes the measurements and diagnostics to Home Assistant through its native API, […]
The TechMP Webinar, July 15, 2026 uRADMonitor founder Radu Motișan was invited as a speaker in a live webinar organised by the University of Craiova, hosted by lect.univ. Ph.D. Mihaela Tinca Udriștioiu. The session brought together over 50 participants from Romania, Bulgaria, Greece, and North Macedonia, covering everything from the physics of ionising radiation to […]
Hi everyone, This is a write-up of my open-data station: an SBM-20 in a GGreg20_V3 front end, an Olimex ESP32-POE-ISO-EA-IND doing the counting, and Home Assistant doing the uploading. Device ID 13000200, currently in Estonia. The headline is that I did not write any firmware. The whole thing runs on stock ESPHome — about thirty […]
Hi all, Back in 2021 I started off with a very simple Heltec wifi kit 32 and since then I’ve been happily logging data using DIDAP (old method EXP1) protocol with a very basic interface and switched over to an Espressif ESP32 wrover-e with a little more advanced version thanks to it’s hardware specs and […]
uRADMonitor is one of the biggest global sensor networks for environmental monitoring, providing real-time data on air quality, radiation, and other parameters. While most of the units in the network are made by us and typically come with a predefined unique Device ID, assigned at manufacture time, the network allows open hardware and custom sensors to […]
