TeHyBug CO2 Sensor Firmware

I have finally finished firmware for the TeHyBug CO2 FreshAirMakesSense Boards. The firmware has the most needed features for smart home integration like a webserver that serves sensor data in JSON format and autodiscovery mode for HomeAssistant. It also supports OLED displays and some more features. For the complete feature list and description please visit…… Continue reading TeHyBug CO2 Sensor Firmware

TeHyBug CO2 Mini Sensor

This is a smaller version of the https://blog.tehybug.com/index.php/2022/02/20/tehybug-senseair-co2-sensor/ its smaller because it uses a different sensor SCD4x which has a smaller size. The new board also has an OLED Display connector, the senseair s8 board was upgraded too and also supports a display connection. Size comparison TeHyBug CO2 with S8 Senseair Sensor and with SCD4X…… Continue reading TeHyBug CO2 Mini Sensor

How to Configure TeHyRelay/GumRelay with Tasmota firmware

First start configuration Connect GumRelay to a power source, (Recommended 4,5 to 6Volt). Please keep the correct polarity. After that, a WIFI network will be created by the ESP01 Module. Please connect to the tasmota-XXXX Network. Open in your web browser http://192.168.4.1/ A configuration page will appear. At AP1 SSID provide your WIFI network name.…… Continue reading How to Configure TeHyRelay/GumRelay with Tasmota firmware

TeHyBug 18650 Universal Updated Board

TeHyBug 18650 v 1.1.6 Updated board The new updated version of the TeHyBug universal 18650 Board is already available at Tindie. The difference compared to the previous version: Old versionNew versionwas using an ESP-01 Module with 1MB memory, the module could be easily replaced or swapped, and could be easily flashed with esp-01 programmers.Had a…… Continue reading TeHyBug 18650 Universal Updated Board

TeHyBug Senseair CO2 Sensor for HomeAssistant and EspHome

We spend over 90% of our time indoors, where the amount of CO2 we exhale has a significant impact on our health and well-being. High CO2 concentrations not only lead to tiredness, headaches and can cause dizziness, they are also a good indicator of when the distribution of aerosols in the air exceeds a value…… Continue reading TeHyBug Senseair CO2 Sensor for HomeAssistant and EspHome

Receive TeHyBug alerts and retrieve the latest sensor data in the Telegram messenger

TeHyBug Bot for Telegram messenger exists already for several years, but not many are using it, probably because they don’t know what it is and how to use it. First of all, you will need a Telegram messenger you can install from the apple app store on iPhone or google play store on Android. Then…… Continue reading Receive TeHyBug alerts and retrieve the latest sensor data in the Telegram messenger

Best Neopixel Ambient Light Controller? WS2812B/SK6812

I have designed a tiny and convenient neopixel driver board that can be also used for other purposes, like ser2net programmer, logging environment data or reading UART Sensor data, etc. But its main purpose is driving WS2812B/SK6812 led strips or matrixes and generating cool eye-catchy light effects. It can be programmed with WLED to drive…… Continue reading Best Neopixel Ambient Light Controller? WS2812B/SK6812

Smarthome sensors ZigBee or WIFI, which technology is best?

Both technologies have their advantages and disadvantages, here is a side-by-side comparison of ZigBee vs Wifi sensors for the smart home. For my comparison, I take the TeHyBug Wifi sensor and Aquara ZigBee Sensor which is connected through a HeilBee v4.5 ZigBee stick to my HomeAssistant. ZigBeeWIFIRequires a special ZigBee hub or coordinator stick. The…… Continue reading Smarthome sensors ZigBee or WIFI, which technology is best?