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+# ESP air quality sensor
+
+## Components
+
+- BME680 in I2C mode
+- SenseAir Sunrise (buggy early revision, will need updating for newer sensors)
+
+## Pinout
+
+- I2C_SDA0 16 - i2c for BME680
+- I2C_SCL0 17
+- I2C_SDA1 5 (senseair sunrise uart TX)
+- I2C_SCL1 18 (senseair sunrise uart RX)
+- CO2_NRDY 23
+- CO2_COMSEL 13 (high=uart)
+- CO2_EN 15 sunrise restart pin, works like nReset
+
+## Licensing
+
+- Console component, proprietary (c) VZLU 2021, developed for VZLUSAT2 with CSP parts removed in this version. Partly based on esp32 console, including 3rd party Linenoise library.
+- BSEC2 by Bosch, see lib for details
+- web templating, telnet protocol, tcp socket server and the actual metering app (c) Ondřej Hruška 2018-2022