Articles

Measure the CO2 with CozIR-LP sensor and ESP32
Nowadays we can develop a device which will measure all parameters of air – temperature, humidity and also we can buy CO2 sensor and measure the quality of air. The…

How to decrease the deep-sleep current of ESP32-CAM
ESP32-CAM is very popular development board which contains Wi-Fi and Bluetooth connectivity with ESP32 module, OV2640 camera, slot for microSD card and programmer – USB-UART convertor. These parts are designed…

Weather station with ePaper and weather data from OpenWeatherMap
The weather station is the first DIY project which makers do after sometime of playing with electronics. It is project which is helpful and makers using this long time. This…

New version of Wi-Fi module (v1.1) for IoT platform called BigClown
Wi-Fi module is used for Wi-Fi connection with your server and sending/receiving data with BigClown IoT platform. Wi-Fi connectivity is missing in the offer of BigClown. If you use Wi-Fi…

Update AT firmware to ESP8266 (ESP12E) in Linux
During the development of SW support of BigClown Wi-Fi module with ESP8266 in ESP12E module. Martin Grames found issue with using of SNTP or SSL, you have to update AT…

ePaper 4.3″ (800×600) with UART interface
ePaper is the display interface which is more and more popular thanks to zero power consumption and also price which is lower than before a few months and years. ePaper…

Meteo v3 – verstatile board with ESP12E/ESP07/ESP08
Originaly, this board – Meteo v2, was designed like replacement of general analog thermometer which costs ~1 USD. But, thanks to comments of makers, the board was redesigned to versatile…

RockPi 4B – speedtest (2.4GHz, 5GHz, ethernet) and sysbench benchmark
We received single-board computer RockPi 4B with accesories – eMMC module, power supply, case and PoE module. We wrote about RockPi 4 in this news. You have a choice from…

BigClown “Sensor adapter” versatile expansion board for sensors from ebay and aliexpress
BigClown, popular IoT platform, offers a lot of TAGs (board with sensor) and modules, but I still had missed versatile board for connection of cheap sensors from ebay and aliexpress…

About ESP32 and FireBeetle development board – I2S and Bluetooth
I would like to thank Richard Štefún for this very good article about ESP32 and development board. In previous article we introduced the ESP32 microcontroller and its peripherals. Now, we…