ESPGeiger Log is a hardware device to accompany the ESPGeiger firmware - to allow easy, stable and clean connectivity to your existing Pulse or Serial based Geiger counter.

ESPGeiger a firmware that is compatible with all Pulse based counters and a range of Serial based counters, including but not limited to the common CAJOE and the GC10 range of Geiger Counters.

ESPGeiger connects the gap between your offline Geiger counter and the Online world!

Note: v001 12/2023 version of the board comes with space for optional through-hole components. These spaces are already populated with SMD components for C1, C2 and R1.

Hardware Features

• ESP8266 MCU based Geiger counter logger
• Compatible with numerous Geiger counters - Pulse and Serial
• Intuitive coloured NeoPixel feedback
• OLED display (SSD1306 0.96-inch 128x64)
• SDCard logging

Firmware Features

• 😃 Easy to install and configure
• ✅ Compatible with all generic Geiger counters with Pulse output and a range of serial based counters
• 📈 Built in webserver with graphing
• 🖥️ SSD1306 Display support
• 🔴 Live CPM and μSv/h readings
• 🔢 Smoothed and averaged values over 1, 5 and 15 minutes
• 🎛️ Configurable filtering/debounce and noise control
• 📟 Accurate counting via interrupt and non-blocking functions (accuracy tested up to 100k CPM)
• ⏲️ No dead time due to waiting for 3rd party services
• 🌐 Upload and share statistics to services online and locally via MQTT and Home Assistant automatic discovery
• 💾 Save your data locally to an SDCard
• 💡 Colourful and intuitive feedback using a WS2812X NeoPixel
• 🚧 Test builds for emulating pulse and serial based counters

Firmware Outputs

The firmware optionally outputs to a number of different online resources, including:

• MQTT
• Home Assistant
• Radmon
• ThingSpeak
• GMC World Map

Why did you make it?

To give people an easy, clean and reliable way to connect their Geiger counter to the world of IoT.

What makes it special?

This is the only dedicated firmware and hardware for this purpose.

Package Contents

• ESPGeiger Log Board
• WS2812X NeoPixel
• Push button
• JST XH2.54 header
• Cable

Optional

• D1 Mini with ESPGeiger pre-installed
• SSD1306 OLED display (0.96 inch) & standoffs

Easy Firmware Install and Upgrade

Simply visit the online installer at https://install.espgeiger.com to easily flash your ESP8266 and be up and running with the ESPGeiger firmware in minutes!