CO2 sensors from Sensirion. SCD30, SCD40, or STCC4? Which sensor is suitable for home use?
Sensirion, a leading manufacturer of various sensors, offers multiple types of sensors for measuring CO2 concentration. This article will explore the differences, advantages, and the best sensor for battery operation.
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Arduino MKR WAN 1300 and MRK GSM 1400
Arduino.cc released two new boards called MKR. A few boards with MKR name are available in store. MKR FOX 1200 with IoT Sigfox module and basic board called MKR 1000…
Orange Pi 3 Plus is comming – Allwinner H6, Gigabit interface, USB 3.0, WiFi 2.4/5 GHz
Armbian tweeted a picture of Orange Pi 3 Plus. The board is not oficially at store. That’s sample board for developers. What we see on board. The Orange Pi 3…
ESP32 (REV1) board by WEMOS – LoLin32 Lite
WEMOS released a new development board with ESP32 called LoLin32 with price $4.9 (+ shipping, $2.59 in my case). WEMOS has released LoLin32 a few weeks ago. Here is link…
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…
NanoPi DUO – H2+, 512MB RAM, WiFi 802.11 b/g/n
Friendlyarm is known for development of single-board computers and it released a new board called Nano Pi DUO. Nano Pi DUO, which dimension of board is similar with NodeMCU (DUO…
Meteostation board with ESP8266 – a new firmware
A new example code for meteostation board. The first example code: ESP12E reads values (temperature/humidity) from Si7021 sensor and then the data is sent to tmep.cz website. This website shows…
UPDATED: ESP32-PICO-D4 (new pictures)
Espressif released the news about a new System in Package (SIP) ESP32 which supports WiFi and Bluetooth connection a few days ago.. The ultra-small board contains ESP32 in QFN package,…
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…
OrangePi R1 – two ethernet interfaces and H2+ processor
Maybe you saw strange board by OrangePi with two RJ45 connectors. This board is called OrangePi R1.The processor is Allwinner H2+ and amount of RAM is 256 MB. The ethernet…
OrangePi Zero Plus – Allwinner H5 (quad-core), 512 MB RAM, gigabit ethernet, WiFi
Shenzhen Xunlong is comming with a new version of ZERO board. Instead of Orange Pi Zero, OrangePi Zero Plus 2 a Orange Pi Zero Plus 2 H5 now we have…