I did a small library to directly readout a standard load cell with T3.2s built in differential ADC/PGA. Works nicely if you don't plan to make a high precision balance :-)
Here the link to the gitHub repo https://github.com/luni64/TeensyLoadcell and here a quick video demonstrating a simple balance:

Youtube: https://youtu.be/ls3YLmw5UEo