LOG 003 / PROTOTYPING / REFERENCE
Breadboards
A solderless breadboard is excellent for fast topology changes, but small biological signals expose its loose contacts, long jumpers, shared rails, and stray coupling. Treat the board as a temporary experiment—not the final analog instrument.
PROTO
Fast, reusable, solderless connectionsCenter trench separates IC pin rowsPower rails may be split internallyLong wires can collect 50/60 Hz interference
RESEARCH SIGNAL FLOW
short leads + known ground + staged tests = readable signalsMYCOTUNE USE CASES
◌ Prove the ESP32-S2 and ADS1115 digital connection
◌ Test filters and bias networks one stage at a time
◌ Keep electrode inputs short and away from digital lines
◌ Use a single documented ground reference
NEXT BENCH STEPS
→ Map hidden rail breaks with a multimeter
→ Color-code power, ground, I²C, and analog jumpers
→ Capture noise with electrodes shorted
→ Move stable analog stages to soldered prototype board