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klotz: hacks* + bme680* + sensors* + esp32*

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1. Roll Your Own Presence Sensor

   This article details a DIY presence sensor project inspired by the Everything Presence Lite kit, utilizing a millimeter wave sensor and a BME680 environmental sensor for accurate motion and heart rate detection.

   2024-09-03 Tags: presence, sensor, mmwave, diy, esp32, bme680, hardware, hacks by klotz
2. BME680 Observed gas 'ohms' readings - Support - Pimoroni Buccaneers

   comp_gas = log(R_gas ohm » ) + 0.04 log(Ohm)/%rh * hum %rh » .
   
   log(R_gas) + 0.04 * hum

   2022-08-20 Tags: bme680, sensors, air quality, secret sauce, pimorini, raspberry pi, arduino, esp32, hacks, ohms by klotz

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