What is it?

An ADS1115 breakout inspired by the classic Adafruit ADS1115 breakout with additional connectors tuned for use in Energy monitoring systems. There are 2 CT connectors (3.5mm stereo jacks) connected as differential input to the ADC's with 100R burden resistors in place. There are also a couple of Grove connnectors suited for daisy chaining these modules over the i2c bus and monitoring upto 6 additional channels (due to availability of i2c addresses)

Why did you make it?

Some of the customers of the NodeMCU Energy Monitor want to monitor more than one AC circuit (i.e. lamps and sockets instead of the whole house at once). This module was designed to cater for them and allow additional channels to be sampled.

What makes it special?

This is an ADS1115 breakout with a difference. It has the same layout on the headers as the Adafruit board and more parts, yet it is cheaper. Mostly because I choose to charge only for parts and postage and not for labour and profit. It allows combination with standard breadboard usage, usage with my NodeMCU energy monitor or connection to the ever expanding family of grove compatible boards which you may already own. It features solder pads to change module i2c address and of course the option to mix and match with other grove modules (provided power supply is sufficient).

Usage Notes

This board can be used with any Grove compatible system by specifying the configured i2c address. If using an arduino compatible system, modify the rms current monitoring code to include the proper i2c address/es of modules in use. You can verify the i2c address of the addon module using the i2c scanner. The default module has the address 0x48. The addon module has this address by default as well. In order to avoid conflict solder one of the 3 other address jumpers on the Grove module before usage.

Special Offer

During design cycle there are often botched boards which I have to hack up to function. I have a couple of such boards which I can offer at a discount (see images for jumper wire bodge). Contact me for a discount code if you are interested in this fully functional though not so aesthetically pleasing boards.