Re: Teperature / humidity sensor recommendation
Posted: Sun Nov 19, 2017 9:46 pm
I got the sensors last week and find that they work great! I have 2 questions that I didn't realize may be an issue with a second projaect.
1) how can I use more than 2 sensors?
2) how can I use these at a long distance?
I have a project that uses an UNO and 3 DHT11 modules. It works fine as is, but I want to replace it with a Wemos D1 and 3 BME280. The project is an attic fan controller. It monitors temperasure and humidity of 2 attic spaces and outside turning the fans on and off depending on conditions. It does not communicate with my home automation setup and the DHT11 are inaccurate. But, BME280 can only have 2 addresses on I2C and the technically can only be 10cm away from the board. My BME280 are both SPI and I2C.
1) how can I use more than 2 sensors?
2) how can I use these at a long distance?
I have a project that uses an UNO and 3 DHT11 modules. It works fine as is, but I want to replace it with a Wemos D1 and 3 BME280. The project is an attic fan controller. It monitors temperasure and humidity of 2 attic spaces and outside turning the fans on and off depending on conditions. It does not communicate with my home automation setup and the DHT11 are inaccurate. But, BME280 can only have 2 addresses on I2C and the technically can only be 10cm away from the board. My BME280 are both SPI and I2C.