Notes from my online journal [krishna-bhatt.com]

A collection of notes, random thoughts, and observations (mostly unintelligible). Unfortunately, I cannot post everything publicly due to IP. Cheers! -Krishna

Latest posts

MesoNet: bipolar event names and update ordering

wait, check sPlus / sMinus against the predicates. old s β†’ new s β†’ event check, names alone are not helping here archived model state: v , u , v0 , threshold state s and previous threshold state s_pre . neuronUpdates() runs with...

MesoNet: minimal neuron experiments

tiny neuron tests πŸ™‚ easier to follow one trace than the whole network. check which declared state variables actually appear in the equation neuron-models/logistic_test.py: a single dimensionless neuron uses dv/dt = (0.1*v*(I-v))/tau , with...

MesoNet: bipolar temporal-switch encoder

sign from swapping the two event times, nice. draw pixels either side of a quantization boundary later; want to see how suddenly that pair moves Reference: base_model/mnistV1.py β†’ temporal_switch(img, quant_levels=10) . The archived experiment...

HomeBuilt: interview design and validation provenance

interviews: ask about current problems BEFORE pitching HomeBuilt. β€œwould use this” vs actually paying the pack price are very different answers, keep question versions + response exports two stages in the survey notes: pain-probing interviews...

HomeBuilt: archived idea-selection criteria

scope / impact / niche / revenue... need a tiny test, not another giant idea list. Save rejected ideas w the assumption that killed them. otherwise I’ll rediscover the same thing in 3 months :) archive contents: an early idea brainstorm...

Tracing benchmark: 513 versus 115 iterations

513 checks β†’ 115, nice need runtime + input size too. fewer visited voxels doesn't automatically mean the same factor of speedup The tiny complexity sheet records exhaustive = 513 and tracing = 115 iterations. The ratio is 513/115 β‰ˆ 4.46 ;...

Latency and battery: averages versus tails

mean total 1.8844 s, but 21/50 trials over 2 s keep the tail, not just the average. battery trace gets to ~18 min continuous use... need duty-cycle notes next to that The latency sheet separates logic, mechanical and total response time across...

GRU data dictionary and split audit

GRU sheets: 850 train / 150 test, no exact row overlap label 0 includes quick falls AND walking. need collection method + session split before treating that as a clean safe/unsafe dataset The three GRU spreadsheets are actual tabular data, not...

Cookie Dispenser: verified firmware hardware map

CookieDispenser.ino pin map here, actual code rather than guessing from the wiring picture btSerial on 5/6 is commented out; active status LED is pin 4. easy thing to miss Recovered the actual CookieDispenser.ino linked in the presentation,...

Cookie Bluetooth protocol and app archive map

send '3' β†’ count header + ba/bb/etc cookie events queue has 10 slots, append doesn't check capacity. if the reply gets lost, can refresh retry without counting the same cookie twice? The presentation links both the .ino and the MIT App Inventor...