I’m having an awful time with Myoware 2.0 muscle sensor. I have it set up without soldering and its plugged into my (unplugged) computer. I dont have a usb isolator but as far as im aware that’s not required if the laptop isnt plugged in. no matter what i try, i cannot get the env light to go out and I cannot get the graph of its output to read anything except for 1023. i have tried different electrodes in different spots, i’ve tried different code, and I have tried different sensors entierly. I have tried everything I can thing of. I dont know whats wrong or how to fix it. Can someone please help?
Soldering the connections might help
1023 is the max value, which means it might be saturated…we generally only recommend adjusting the gain as a last resort, but it sounds like you have already done the general troubleshooting steps so it make make sense here (turn it down)
unfortunately when i tried the only thing that would happen is that the light would go out and never come back on and the graph would sorta flatline. if i turned it back up again the original problem persisted.
Make smaller adjustments…if it is maxing out at one setting and flatline/0 for another, you need to set it at the midpoint
i did. there was no inbetween.
Soldering the connections is the next step then
but i bought the parts that did not require soldering
Will you share some photos of your setup & placement? Or a link to a video
That’s looks pretty good. Maybe try it without the ref cable/shield and see it behaves any differently…I’m thinking the link shield might need to be in REF mode Getting Started with the MyoWare® 2.0 Muscle Sensor Ecosystem - SparkFun Learn
i tried. it didnt work
hi, i dont see a reply to my response yet
It might be a defective unit, then - Was it purchased from us? If so head over to Return Policy - SparkFun Electronics (contact vendor if purchased elsewhere) and we’ll get ya squared away
but i tried a minimum of three seperate sensors, is it reasonable theyre all defective?
hi, I’m still trying to solve this issue. I would really appreciate consistency in this conversation.
It is rather unlikely that all 3 are defective…but the thing with the myoware items is there are like 13 variables that can all individually throw off the measurements. I re-iterate the fact that you got saturation and then nothing by adjusting the gain indicates that it is mis-adjusted, but I can’t offer much besides telling you to go through ALL of the guides (3) thoroughly and triple-check every single thing
unfortunately i already did all that, as well as passed them off to an electrical engineer of over twenty years experience who unfortunately had the same issues as i did.
Hello, has your problem been solved?
nope 
unfortunately it is still persisting.