Can I use I2C device (RTC) to trigger OpenScale?

Have questions about a SparkFun product or board? This is the place to be.

Moderator: phalanx

Post Reply
Posts: 1
Joined: Mon Jan 21, 2019 10:35 am

Can I use I2C device (RTC) to trigger OpenScale?

Post by hrwt » Mon Jan 21, 2019 11:01 am

Hello all,

I am trying to build a beehive scale for a friend using OpenScale and OpenLog.
As there is no constant power source near the beehives, I plan to enable OpenScale's serial trigger option to save batteries and to use RTC (DS3231) as a trigger device.
But, as a beginner, I couldn't figure out how to attach the RTC to OpenScale.

According to the following site, it needs four lines. i.e. VCC, GND, SDA and SCL. ... -tutorial/

For VCC and GND, I may be able to use 5V and GND for the external temperature sensor as I won't use it (for now at least), but where should I solder SDA and SCL?

I googled various keywords (openscale, i2c, atmega328p, sda, scl, ...), but couldn't find any similar example or relevant information.
Does anyone have advice or link to a similar usage?
Or am I doing it the wrong way?

Thank you!

Post Reply