July 27, 2026
8 min read
How I built a wearable plantar-pressure system from the ground up — 16-channel FSR sensing, a real-time bare-metal C pipeline, and an on-device neural network — and recorded my own dataset of 1,500+ gait samples from 50 subjects to train it.
embedded
TinyML
machine-learning
signal-processing
FSR
gait-analysis
firmware
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July 26, 2026
8 min read
A practical field guide to the three hard problems in cellular IoT firmware: fitting everything into the nRF9160's memory budget, authenticating the UART link between two microcontrollers, and integrating with the Golioth cloud.
embedded
nRF9160
Zephyr
IoT
firmware
security
Golioth
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