diff --git a/envisens/atmega_fw/atmega_fw.ino b/envisens/atmega_fw/atmega_fw.ino index e831955..07b81d6 100644 --- a/envisens/atmega_fw/atmega_fw.ino +++ b/envisens/atmega_fw/atmega_fw.ino @@ -4,6 +4,8 @@ * Currently supported sensors: * - digital pin D2: DHT22 temperature and humidity sensor * - analog pin A0: MQ135 gas and air quality sensor + * + * Connect the ESP8266 D1 to ATMEGA A5 and D2 to A4 for I2C communcation. * * (C) 2019 Macrocell - Environmental Sensing Solutions (MESS) * proudly presented by Macrocell - FPGA Innovators