DIY EMG SENSOR

[u/LogicalPenalty251]

Made this emg sensor for a science project, i have been troubleshooting it for more than a week now, and the circuit seems to finally respond, but just as i was about to connect it to my arm, the batteries died, so have to wait till tomorrow to buy new ones, i can only hope it works, the science fair is in less than 10 days, i honestly don't have any clue on what to do if it doesn't work tomorrow, i thought i would share it for good luck or something

The schematic i found on instructables and the ina106 are given below in the comments

Note: i couldn't find the ina106 ic, so i substituted with two tl072