18650 Li-Ion battery powered Wemos D1 with Wemos Battery Shield - DONE 48 days achieved

>>> For the version with a solar panel attached see this post <<< Wemos has developed a series of shields for the Wemos D...

BMP280 and ESP8266

The BMP280 is the next generation sensor from Bosch  and follows its predecessors BMP085 - BMP180. Price for it is now under $2 with free sh...

DHT22 versus BMP180. The winner is ....

For my chronothermostat  project I have evaluated the 5.11USD  DHT22 and 2.20 USD  BMP180 . I've let them work in parallel for few days...

Post man #4

To extend the range ( which seems to be fine for my project at this time) I've ordered some  19 cm mini PCI U.FL to RP-SMA WiFi Antenna ...