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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UPDATED: Olimex ESP32-EVB – ESP32, CAN, Ethernet and ES32-GATEWAY
Olimex – ESP32-EVB. You can find ESP32 WiFi&BT module built-in arduino programmer (USB-UART bridge), 100Mbit interface, microSD card slot, two relays (10A/250VAC), CAN interface, IR receiver and transmitter, charger for…
ESP32 universal dev board by RobotikaBrno (CZE)
You can find up a lot of development boards for ESP32 on internet, some are cheaper, some more expensive. The one czech hobby group (Robotika Brno – CZE) designed universal…
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…
ESP32 and battery holder, TTgo Uno ESP32
With ESP32 we can expect a lot of interesting board for wireless connections – WiFi and Bluetooth. We expect that the Wemos name on the board is maybe abuse of…
NanoPi M2A – WiFi&BT, Gbps ethernet for $29.99
Friedlyarm released a new version of NanoPi single-board computer – NanoPi M2A. NanoPi M2A is a new generation of NanoPi M2 by FriendlyElec, the new board responds to customer requirements.…
Arduino LoRa shields – node and gateway
Arduino develops two new shields for LoRa IoT network. The first board is Arduino LoRa Node shield used for Arduino Primo. The second is Arduino LoRa Gateway shield for Arduino…
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…
Espruino WiFi – $34.95
Adafruit released a new development board which supports JavaScript programming language. This is other part of Espruino family like Espruino Pico or original Espruino. The base components of Espruino WiFi…
Freematics – ESPRIT – ESP32 dev board
ESP32 is the most anticipated component this year, we will meet with a lot of dev boards with this very popular chip for wireless workaround. Freematics shared development board called…