esp32_weather | Collect data from bosh/sparkfun BME280 i2c

esp32_weather is a C library typically used in Internet of Things (IoT), Arduino applications. esp32_weather has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Collect data from bosh/sparkfun BME280 & Si7021 over i2c and the internal esp32 temperature sensor. Send data to thingspeak.com and go back to sleep. Here are the reuslts. For the first dataseries I opened the window, closed the window, used a hair-drier and then just let is sit with the window closed. For the second channel I put the esp32 in a box that I placed outside. I also solved the problem with bootcount being lost during sleep. That statement was missing in the 06_sntp example. Now I will let the board run on a 7800mAh battery and continue to update this thingspeak channel I also added pressure to this feed. As measurements indoors wasnt so exciting I moved the data collection outside. For temperature measurements, I used the adafruit si7021 temperature humidity board & Sparkfun BME280 board. Both are i2c boards, here is the output when running. The esp32 will wakeup every 6 seconds and check the boot_count. This is done as otherwise the battery will switch off. Every minute wifi will be started and the collected data will be logged on #i2c_init Before the modules can be used, this must be called. #i2c_scan Simple but useful to see the assigned adresses of the i2c devices. #The si7021 board Future enhancements could be to add heating function to enhance humidity sensing. #The BME280 weather data board To save battery, we use this sensor in forced mode. i2c_bme280_begin(); puts the sensor in normal run mode. After calling i2c_bme280_force_readings(); the sensor does one measurement and then goes back to sleep mode. (0). Running all day and night.