#6 in Pressure & vacuum measurement tools
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Reddit mentions of XM electronic BME280 5V Pressure Temperature Sensor Module Atmospheric Pressure Sensor Breakout with IIC I2c for Arduino
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Reddit mentions: 1
We found 1 Reddit mentions of XM electronic BME280 5V Pressure Temperature Sensor Module Atmospheric Pressure Sensor Breakout with IIC I2c for Arduino. Here are the top ones.
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- The BME280 digital sensor module can be independently enabled / disabled, which can measure not only the temperature humidity but also the pressure.
- The BME280 Sensor is suitable for all sorts of weather sensing and can even be used in both I2C and SPI! For simple easy wiring, go with I2C simply. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
- Our BME280 Sensor is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are good, you can also use it as an altimeter with ±1 meter accuracy.
- You will get: 1 X BME280 Sensor Module
Features:
Specs:
| Color | Purple |
| Size | Small |
Skip both of those sensors and get a BME280 sensor, instead. $7 on Amazon (or less if you buy more than one), works on I2C. And you get temp, humidity and barometric pressure in one easy to use sensor.
If you use it with an ESP32, be sure to keep the sensor away from the ESP itself. There have been numerous posts recently about the heat from the ESP affecting the readings of these temp sensors, especially if they're both in a small enclosure.
You'll need a relay, but be sure to get one that'll handle the current of a space heater. How many amps does that heater pull? Many of the arduino relay modules out there have 10A ratings. A 1500W heater is going to pull 12.5A, so I'd get something with more current handling capability. This optocoupler isolated, 30A relay would work, though. You can get 3 of them for $20 and have spares on hand if one kicks the bucket.
You could do simple control where the relay energizes at the low temp and de-energizes at the high temp, or you could look into using PID control. I'd start with the simple set method, then learn how to implement PID control once you have it working and want better control over temperature and energy usage.