Add comment on I2C pin connections

2019-02-21 21:06:29 +01:00 · 2019-02-21 21:06:29 +01:00 · 20341ffa17
commit 20341ffa17
parent c4edb43af6
1 changed files with 2 additions and 0 deletions
--- 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