Further to the I2C Scanner reference above, this is what mine outputs for a BME 280 ######## I2C finder V 0.7 ######## Scanning.......................... .......................... .......................... .......................... .............. address 0x76 Dec 118 Bin 1110110 EEPROM or Paralle...

It is very simple. If all sensors are I2C then connect all SDA together and all SCL together. Also there must be a a pullup resistor on SDA and one on SCL but probably one or more of your sensor boards do already have a pullup resistor. In that case the external pullups are not needed anymore. I kn...

Hi, I connected a relay module to my Wemos D1 (firmware Esp Easy): VCC to 5V, GND to GND, In1 to GPIO14 (D5) The problem: the relay is always on (the red led is lighting). I tried to switch off: $ curl 192.168.1.4/control?cmd=GPIO,14,0 { "log": "GPIO 14 Set to 0", "plugin&q...