IoT-devices, LLC 🇺🇦
@iot-devices.com.ua
IoT-devices is a Ukrainian private company founded in 2020 in Kyiv. Develops and manufactures its own ecosystem of electronic modules for building smart devices in the sphere of the Internet of things. Visit: https://go.iot-devices.com.ua
We have released the app update last week, mainly to comply with Google Play requirements for minimum API level and target API level:
- Bump minimum SDK to 14 and target SDK to 35;
- Compatibility with Android 16 for screen rotation control.
Don't forget to update your Sound GGreg20_V3 App.
- Bump minimum SDK to 14 and target SDK to 35;
- Compatibility with Android 16 for screen rotation control.
Don't forget to update your Sound GGreg20_V3 App.
Woah! We’ve just released our first #Android app – the Sound GGreg20_V3 App. This Sound GGreg20_V3 #App companion for the DIY Geiger counter module #GGreg20_V3 was developed by the IoT-devices team to provide a quick and convenient way to get started.
iot-devices.com.ua/en/meet-the-...
iot-devices.com.ua/en/meet-the-...
Meet the Sound GGreg20_V3 App for Android on Google Play - IoT-devices, LLC - Electronics manufacturer for IoT
About the new Android app - Sound GGreg20_V3 App. This Sound GGreg20_V3 App companion (hereinafter referred to as the App) for the DIY Geiger counter module GGreg20_V3 was developed by the IoT-devices...
iot-devices.com.ua
August 23, 2025 at 9:30 AM
We have released the app update last week, mainly to comply with Google Play requirements for minimum API level and target API level:
- Bump minimum SDK to 14 and target SDK to 35;
- Compatibility with Android 16 for screen rotation control.
Don't forget to update your Sound GGreg20_V3 App.
- Bump minimum SDK to 14 and target SDK to 35;
- Compatibility with Android 16 for screen rotation control.
Don't forget to update your Sound GGreg20_V3 App.
Wireless and Connectionless over the air data transfer from
#GGreg20_V3 to the Sound GGreg20_V3 companion App. Demo video on YouTube.
www.youtube.com/watch?v=vxT6...
#GGreg20_V3 #DIY #IoT #GooglePlay #App #GeigerCounter #Radiation
#GGreg20_V3 to the Sound GGreg20_V3 companion App. Demo video on YouTube.
www.youtube.com/watch?v=vxT6...
#GGreg20_V3 #DIY #IoT #GooglePlay #App #GeigerCounter #Radiation
Sound Geiger Counter Companion App for GGreg20 V3
YouTube video by iot-devices
www.youtube.com
July 24, 2025 at 9:27 AM
Wireless and Connectionless over the air data transfer from
#GGreg20_V3 to the Sound GGreg20_V3 companion App. Demo video on YouTube.
www.youtube.com/watch?v=vxT6...
#GGreg20_V3 #DIY #IoT #GooglePlay #App #GeigerCounter #Radiation
#GGreg20_V3 to the Sound GGreg20_V3 companion App. Demo video on YouTube.
www.youtube.com/watch?v=vxT6...
#GGreg20_V3 #DIY #IoT #GooglePlay #App #GeigerCounter #Radiation
The easiest way to quickly start using the GGreg20_V3 Geiger counter
July 20, 2025 at 1:01 PM
The easiest way to quickly start using the GGreg20_V3 Geiger counter
Woah! We’ve just released our first #Android app – the Sound GGreg20_V3 App. This Sound GGreg20_V3 #App companion for the DIY Geiger counter module #GGreg20_V3 was developed by the IoT-devices team to provide a quick and convenient way to get started.
iot-devices.com.ua/en/meet-the-...
iot-devices.com.ua/en/meet-the-...
Meet the Sound GGreg20_V3 App for Android on Google Play - IoT-devices, LLC - Electronics manufacturer for IoT
About the new Android app - Sound GGreg20_V3 App. This Sound GGreg20_V3 App companion (hereinafter referred to as the App) for the DIY Geiger counter module GGreg20_V3 was developed by the IoT-devices...
iot-devices.com.ua
July 15, 2025 at 10:02 PM
Woah! We’ve just released our first #Android app – the Sound GGreg20_V3 App. This Sound GGreg20_V3 #App companion for the DIY Geiger counter module #GGreg20_V3 was developed by the IoT-devices team to provide a quick and convenient way to get started.
iot-devices.com.ua/en/meet-the-...
iot-devices.com.ua/en/meet-the-...
We noticed that there have been some updates to the Arduino website. The path to the library for GGreg20_V3 Geiger counter has also changed:
docs.arduino.cc/libraries/gg...
docs.arduino.cc/libraries/gg...
docs.arduino.cc
July 15, 2025 at 10:01 PM
We noticed that there have been some updates to the Arduino website. The path to the library for GGreg20_V3 Geiger counter has also changed:
docs.arduino.cc/libraries/gg...
docs.arduino.cc/libraries/gg...
Our GGreg20_V3 Geigr counter listing on Etsy has received several new photos in accordance with the current generation of the module.
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com
July 15, 2025 at 9:59 PM
Our GGreg20_V3 Geigr counter listing on Etsy has received several new photos in accordance with the current generation of the module.
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com/listing/1588...
We have updated the estimated time of international delivery by country according to Ukrposhta statistics.
iot-devices.com.ua/en/estimated...
iot-devices.com.ua/en/estimated...
Estimated delivery terms - IoT-devices, LLC - Electronics manufacturer for IoT
Date of update: 19.06.2025
iot-devices.com.ua
July 15, 2025 at 9:58 PM
We have updated the estimated time of international delivery by country according to Ukrposhta statistics.
iot-devices.com.ua/en/estimated...
iot-devices.com.ua/en/estimated...
IoT-devices was listed in the ‘Register of the Best Suppliers of Goods and Services 2024’
iot-devices.com.ua/en/best-supp...
iot-devices.com.ua/en/best-supp...
LLC
We are pleased to announce that IoT-devices LLC has been included in the ‘Best Suppliers of Goods and Services Register 2024’ based on the results of its activities in 2024. Previously, our company wa...
iot-devices.com.ua
July 15, 2025 at 9:57 PM
IoT-devices was listed in the ‘Register of the Best Suppliers of Goods and Services 2024’
iot-devices.com.ua/en/best-supp...
iot-devices.com.ua/en/best-supp...
Building a BLE-Enabled GGreg20_V3 Geiger Counter – Part 1: ESP32 BLE Server with ESPHome Firmware
We have a new article on our website and GitHub. This time, it's about adding #BLE to #GGreg20_V3 #GeigerCounter using #ESP32 with #ESPHome firmware.
iot-devices.com.ua/en/ggreg20-v...
We have a new article on our website and GitHub. This time, it's about adding #BLE to #GGreg20_V3 #GeigerCounter using #ESP32 with #ESPHome firmware.
iot-devices.com.ua/en/ggreg20-v...
Building a BLE-Enabled GGreg20_V3 Geiger Counter - Part 1: ESP32 BLE Server with ESPHome Firmware - IoT-devices, LLC - Electronics manufacturer for IoT
Here's an example for the GGreg20_V3, sending radiation levels right to your smartphone app using BLE (Bluetooth Low Energy)! This part dives into the first piece of the project: setting up the ESP32 ...
iot-devices.com.ua
July 15, 2025 at 9:56 PM
Building a BLE-Enabled GGreg20_V3 Geiger Counter – Part 1: ESP32 BLE Server with ESPHome Firmware
We have a new article on our website and GitHub. This time, it's about adding #BLE to #GGreg20_V3 #GeigerCounter using #ESP32 with #ESPHome firmware.
iot-devices.com.ua/en/ggreg20-v...
We have a new article on our website and GitHub. This time, it's about adding #BLE to #GGreg20_V3 #GeigerCounter using #ESP32 with #ESPHome firmware.
iot-devices.com.ua/en/ggreg20-v...
Introducing the new black GGreg20_V3 board: high-voltage adjustment upgrade, quality control, and warranty stickers
Note: this article, like other publications on our website, is also available in Ukrainian.
#GGreg20_V3, #IoT, #GeigerCounter #DIY
iot-devices.com.ua/en/new-black...
Note: this article, like other publications on our website, is also available in Ukrainian.
#GGreg20_V3, #IoT, #GeigerCounter #DIY
iot-devices.com.ua/en/new-black...
Introducing the New Black GGreg20_V3 Board: High-Voltage Adjustment Upgrade, Quality Control, and Warranty Stickers - IoT-devices, LLC - Electronics manufacturer for IoT
The new GGreg20_V3 board is supplied in black color. This is probably already the tenth generation, which received an updated circuit for smoother high voltage regulation and limitation of its values....
iot-devices.com.ua
June 15, 2025 at 12:28 PM
Introducing the new black GGreg20_V3 board: high-voltage adjustment upgrade, quality control, and warranty stickers
Note: this article, like other publications on our website, is also available in Ukrainian.
#GGreg20_V3, #IoT, #GeigerCounter #DIY
iot-devices.com.ua/en/new-black...
Note: this article, like other publications on our website, is also available in Ukrainian.
#GGreg20_V3, #IoT, #GeigerCounter #DIY
iot-devices.com.ua/en/new-black...
Back in Stock on Etsy! The GGreg20_V3 DIY geiger counter module with J305 tube, cables and case for Arduino, Raspberry Pi, ESP32, ESP8266 and other MCUs #DIYElectronics #Geiger #J305 #GGreg20_V3 #BackInStock
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com
April 6, 2025 at 11:20 AM
Back in Stock on Etsy! The GGreg20_V3 DIY geiger counter module with J305 tube, cables and case for Arduino, Raspberry Pi, ESP32, ESP8266 and other MCUs #DIYElectronics #Geiger #J305 #GGreg20_V3 #BackInStock
iotdevicesllc.etsy.com/listing/1588...
iotdevicesllc.etsy.com/listing/1588...
We have updated the page on our website with the estimated time of international delivery by country according to Ukrposhta statistics.
iot-devices.com.ua/en/estimated...
iot-devices.com.ua/en/estimated...
Estimated delivery terms - IoT-devices, LLC - Electronics manufacturer for IoT
Date of update: 12.03.2025
iot-devices.com.ua
March 12, 2025 at 8:58 AM
We have updated the page on our website with the estimated time of international delivery by country according to Ukrposhta statistics.
iot-devices.com.ua/en/estimated...
iot-devices.com.ua/en/estimated...
Today, Norway has been added to the countries where we have our valued customers!
++ Norway, NO
We thank you all for your trust and choice of our products, as well as all those who support Ukraine in these difficult times.
iot-devices.com.ua/en/customer-...
++ Norway, NO
We thank you all for your trust and choice of our products, as well as all those who support Ukraine in these difficult times.
iot-devices.com.ua/en/customer-...
Geography of users - IoT-devices, LLC - Electronics manufacturer for IoT
Over the years, our products have found their users in more than three dozen countries. On the map, we show all the countries we have recorded from where our
iot-devices.com.ua
March 10, 2025 at 11:04 AM
Today, Norway has been added to the countries where we have our valued customers!
++ Norway, NO
We thank you all for your trust and choice of our products, as well as all those who support Ukraine in these difficult times.
iot-devices.com.ua/en/customer-...
++ Norway, NO
We thank you all for your trust and choice of our products, as well as all those who support Ukraine in these difficult times.
iot-devices.com.ua/en/customer-...
If you are interested in what options others choose for the DIY Geiger counter #GGreg20_V3, we have written an article about it.
#DIY #GeigerCounter #HowTo #OrderOptions #Kit
iot-devices.com.ua/en/most-freq...
#DIY #GeigerCounter #HowTo #OrderOptions #Kit
iot-devices.com.ua/en/most-freq...
The most frequently ordered GGreg20_V3 options 2024 - IoT-devices, LLC - Electronics manufacturer for IoT
We analyzed the 2024 order statistics in the online store on our website and added order statistics in the Etsy marketplace store to determine which versions of the Geiger counter module GGreg20_V3 ar...
iot-devices.com.ua
March 9, 2025 at 4:44 PM
If you are interested in what options others choose for the DIY Geiger counter #GGreg20_V3, we have written an article about it.
#DIY #GeigerCounter #HowTo #OrderOptions #Kit
iot-devices.com.ua/en/most-freq...
#DIY #GeigerCounter #HowTo #OrderOptions #Kit
iot-devices.com.ua/en/most-freq...
Our company has conducted a thorough testing of the power consumption of the Geiger counter module GGreg20_V3. The purpose of the study was to determine the real power consumption of the module at different supply voltages: 3.3V, 3.7V, 5.0V.
iot-devices.com.ua/en/ggreg20_v...
iot-devices.com.ua/en/ggreg20_v...
Testing of energy consumption by Geiger counter GGreg20_V3 - IoT-devices, LLC - Electronics manufacturer for IoT
Our company has conducted a thorough testing of the power consumption of the Geiger counter module GGreg20_V3, intended for use in DIY projects. The purpose
iot-devices.com.ua
February 27, 2025 at 11:02 AM
Our company has conducted a thorough testing of the power consumption of the Geiger counter module GGreg20_V3. The purpose of the study was to determine the real power consumption of the module at different supply voltages: 3.3V, 3.7V, 5.0V.
iot-devices.com.ua/en/ggreg20_v...
iot-devices.com.ua/en/ggreg20_v...
Someone connected a Geiger counter module #GGreg20_V3 manufactured by us to #flipperzero back in 2022.
We thank the author for sharing:
imgur.com/a/flipper-ze...
We thank the author for sharing:
imgur.com/a/flipper-ze...
Flipper Zero with GGreg20-v3 Geiger counter
Discover the magic of the internet at Imgur, a community powered entertainment destination. Lift your spirits with funny jokes, trending memes, entertaining gifs, inspiring stories, viral videos, and ...
imgur.com
January 15, 2025 at 10:43 PM
Someone connected a Geiger counter module #GGreg20_V3 manufactured by us to #flipperzero back in 2022.
We thank the author for sharing:
imgur.com/a/flipper-ze...
We thank the author for sharing:
imgur.com/a/flipper-ze...
Application note on the use of the high-voltage converter DCDC_3V3_400V_V1 module as a power supply for the Geiger-Muller tubes or other DIY / IoT projects
iot-devices.com.ua/en/high-volt...
iot-devices.com.ua/en/high-volt...
Application note on the use of the high-voltage converter DCDC_3V3_400V_V1 as a power supply for the Geiger-Muller tube - IoT-devices, LLC - Electronics manufacturer for IoT
Note on the use of the DCDC_3V3_400V_V1 high voltage converter by the user to power the Geiger-Muller tube or in other DIY / IoT projects
iot-devices.com.ua
January 9, 2025 at 10:33 AM
Application note on the use of the high-voltage converter DCDC_3V3_400V_V1 module as a power supply for the Geiger-Muller tubes or other DIY / IoT projects
iot-devices.com.ua/en/high-volt...
iot-devices.com.ua/en/high-volt...
We have been promising for a long time, and now we have finally posted on our website the instructions for the initial diagnostics of #GGreg20_V3.
You can use this manual to check whether the module sub-components are in working condition.
#geigercounter
iot-devices.com.ua/en/technical...
You can use this manual to check whether the module sub-components are in working condition.
#geigercounter
iot-devices.com.ua/en/technical...
Technical note on initial diagnostics of the GGreg20_V3 module with J305 tube - IoT-devices, LLC - Electronics manufacturer for IoT
Technical note on manual initial diagnostics of the GGreg20_V3 module with J305 tube to check the main module voltages at the control points and determine the module's operability
iot-devices.com.ua
December 19, 2024 at 1:50 PM
We have been promising for a long time, and now we have finally posted on our website the instructions for the initial diagnostics of #GGreg20_V3.
You can use this manual to check whether the module sub-components are in working condition.
#geigercounter
iot-devices.com.ua/en/technical...
You can use this manual to check whether the module sub-components are in working condition.
#geigercounter
iot-devices.com.ua/en/technical...
If you were wondering how to order our products:
- On the website (all available products);
- On Etsy (GGreg20_V3 and GGreg20_ES);
- On Tindie (we are currently moving the store to the US).
Note: Ordering through the website gives you the most options and directly supports the Ukrainian economy
- On the website (all available products);
- On Etsy (GGreg20_V3 and GGreg20_ES);
- On Tindie (we are currently moving the store to the US).
Note: Ordering through the website gives you the most options and directly supports the Ukrainian economy
April 8, 2024 at 7:17 AM
If you were wondering how to order our products:
- On the website (all available products);
- On Etsy (GGreg20_V3 and GGreg20_ES);
- On Tindie (we are currently moving the store to the US).
Note: Ordering through the website gives you the most options and directly supports the Ukrainian economy
- On the website (all available products);
- On Etsy (GGreg20_V3 and GGreg20_ES);
- On Tindie (we are currently moving the store to the US).
Note: Ordering through the website gives you the most options and directly supports the Ukrainian economy
Read about the difference between calculating the power of a radiation source and the equivalent dose absorbed by the human body in our new article. iot-devices.com.ua/en/geiger-tu...
#ggreg20_v3 #radiation #cpm #conversion-factor #code-example
#ggreg20_v3 #radiation #cpm #conversion-factor #code-example
Geiger tube J305 conversion factor: differences between the coefficient for source radiation power and absorbed dose. Technical note - Electronics manufacturer for IoT
Geiger tube conversion factor: we believe that it is better to calculate a separate coefficient for each sensor entity depending on its type and purpose
iot-devices.com.ua
April 8, 2024 at 6:52 AM
Read about the difference between calculating the power of a radiation source and the equivalent dose absorbed by the human body in our new article. iot-devices.com.ua/en/geiger-tu...
#ggreg20_v3 #radiation #cpm #conversion-factor #code-example
#ggreg20_v3 #radiation #cpm #conversion-factor #code-example
#Geiger tube #J305: How to calculate the conversion factor of CPM to μSv/h for DIY Geiger counter projects. Technical note #GGreg20_V3 #CPM #microsieverts
iot-devices.com.ua/en/geiger-tu...
iot-devices.com.ua/en/geiger-tu...
Geiger tube J305: How to calculate the conversion factor of CPM to μSv/h. Technical note - Electronics manufacturer for IoT
Geiger tube J305: how to calculate the coefficient of conversion of the number of pulses per minute into the value of μSv/h, the equivalent dose of radiation absorbed by the human body.
iot-devices.com.ua
March 26, 2024 at 2:34 PM
#Geiger tube #J305: How to calculate the conversion factor of CPM to μSv/h for DIY Geiger counter projects. Technical note #GGreg20_V3 #CPM #microsieverts
iot-devices.com.ua/en/geiger-tu...
iot-devices.com.ua/en/geiger-tu...
We have connected the LM75 to our ESP12.OLED_V1 MCU powered by ESP8266 via the ESPHome External Component mechanism so easily that we could not believe it ourselves after complicated experiments with the TMP1075 driver.
Read the full article with examples:
iot-devices.com.ua/en/lm75-ther...
Read the full article with examples:
iot-devices.com.ua/en/lm75-ther...
LM75 thermometer: connection to ESP12.OLED_V1 in ESPHome - Electronics manufacturer for IoT
LM75 thermometer: connected to the ESP12.OLED_V1 controller with ESPHome firmware; Two LM75 sensors work simultaneously with the main controller.
iot-devices.com.ua
January 7, 2024 at 3:49 PM
We have connected the LM75 to our ESP12.OLED_V1 MCU powered by ESP8266 via the ESPHome External Component mechanism so easily that we could not believe it ourselves after complicated experiments with the TMP1075 driver.
Read the full article with examples:
iot-devices.com.ua/en/lm75-ther...
Read the full article with examples:
iot-devices.com.ua/en/lm75-ther...
Pin Reuse validation: updates in #ESPHome version >2023.12.0 affected the examples developed for the #GGreg20_V3 Geiger counter. We have already made the necessary updates to the repositories on our #GitHub.
Read the full article with examples and solutions: iot-devices.com.ua/en/about-cha...
Read the full article with examples and solutions: iot-devices.com.ua/en/about-cha...
About changes in ESPHome configuration validation - Pin Reuse validation - Electronics manufacturer ...
ESPHome - Pin Reuse validation: updates in ESPHome version 2023.12.0 affected the examples developed by our company for the GGreg20_V3 Geiger counter ionizing radiation detector module.
iot-devices.com.ua
January 6, 2024 at 9:41 AM
Pin Reuse validation: updates in #ESPHome version >2023.12.0 affected the examples developed for the #GGreg20_V3 Geiger counter. We have already made the necessary updates to the repositories on our #GitHub.
Read the full article with examples and solutions: iot-devices.com.ua/en/about-cha...
Read the full article with examples and solutions: iot-devices.com.ua/en/about-cha...
We can significantly reduce the price of wonderful product #GGreg20_ES. And that is what we have done today.
iot-devices.com.ua/en/price-for...
iot-devices.com.ua/en/price-for...
GGreg20_ES Price Reduced - Electronics manufacturer for IoT
We have come to the conclusion that we can significantly reduce the price of this wonderful product GGreg20_ES. And that is what we have done today.
iot-devices.com.ua
December 22, 2023 at 11:26 AM
We can significantly reduce the price of wonderful product #GGreg20_ES. And that is what we have done today.
iot-devices.com.ua/en/price-for...
iot-devices.com.ua/en/price-for...