ESP8266 powered by a solar panel and a 18650 battery

On my setup described in here I've added this solar panel from Banggood. If in the past the maximum of battery operated was around 48 ...

BME280 and ESP8266

Latest environmental sensor from Bosh is the BME280 which can measure: temperature humidity pressure and can be found in mobile phones (Nexu...

Getting air quality with ESP8266 and Amazon Alexa

If last week I've managed to get the temperature and humidity with ESP8266 and Alexa, now it's time to integrate the air quality sen...

Getting temperature from ESP8266 over MQTT with Amazon Alexa

With the help of the Iotcentral.eu platform now I can get room temperature or outside temperature with just an ESP8266 and a temperature sen...

MQTT Broker on ESP8266

Running an MQTT broker to serve all devices for a house ( 20pcs) it requires at least a Raspberry Pi or an equivalent SOC. SD card fails fro...

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...