Articles

My experience with WiDo WIFI node
Richard ?tef?n sent me the article, thanks a lot. Recently I received IOT development board called WiDo by DFRobot. It’s similar to Arduino Leonardo, but with a few extra perks…

STM32 development boards to $5 (ebay and aliexpress)
I would like to show you a few development boards with STM32 and the price is lower that $5 (without shipping). You can’t expect the ST-LINK programmer and debugger, but…

Banana Pi M2 Berry: SATA interface and speed test (dd, hdparm, rsync)
Other articles about single-board computer called Banana Pi M2 Berry by SinoVoip. In this article, we check SATA connection and we test the speed of communication. Other articles about BananaPi…

Banana Pi M2 Berry: first start, iperf, sysbench and thermal imaging picture
The single-board computer called Banana Pi M2 Berry is other device by SinoVoip company. The interesting price $34 (with shipping $39.66 in my case) of Banana Pi M2 Berry looks…

The board for weather station (meteostation) with ESP12E module (ESP8266, NodeMCU)
After my experiences with ESP12E (NodeMCU, ESP8266) and SHT75 temperature/humidity sensor I decided to make second version of board used for weather station. The first version is available on https://time4ee.com/articles.php?article_id=33.…

Watering system with NodeMCU (ESP8266, ESP12E)
If you follow me on social networks (facebook, twitter and google plus) maybe you saw a few posts which I shared. My the latest project is watering system with popular…

ESP32, SunDuino – temperature/humidity Si7021 sensor and OLED 128x64px (I2C)
Other article about ESP32. We again connect ESP32 to temperature/humidity sensor Si7021 (HTU21), but today we also connect OLED where will be showed data from sensor. The OLED has 128x64px…

ESP32, SunDuino and temperature/humidity sensor Si7021 (HTU21)
Other article about ESP32, with using of development board of SunDuino ESP32 and temperature/humidity sensor Si7021 (HTU21). I recommend the first article about ESP32 and SunDuino ESP32 which is available…

WIDO – Arduino Leonardo compatible WiFi board
I received very interesting board called WIDO. If you don’t know this board, maybe the WIDO will be interesting after reading of this article. WIDO board sent https://dfrobot.com store. Thank…

ESP32 and Arduino IDE
Finally, I can write you a short tutorial how to play with ESP32 (more powerful than ESP8266). On the internet is a lot of tutorials how to do it, but…