Misc Notes

Definitions

Close Proximity Incident

• At least 30 mins within a 2m radius

Engineering

• accelerometer as a reasonably natural random source/seed
• easily add temperature sensor or pulse/ox
• Increases power consumption

Radio

• Randomize scan/broadcast to counter interference/dense net collision
• Variable scan interval based on perceived density (counters collision-based losses)
• Increase scanning frequency
• Need more battery/power!

Power

• Add more cells by default, 80mAh cell is wimpy

Readings

• Power Management
• An adaptive wakeup scheme to support fast routing in sensor networks
• Encryption
• AES-256-GCM via 'mul, mulmod and exptmod' acceleration
• Static curve ECC
• Memory Efficiency
• Eight tips to use the string class efficiently
• Multitasking
• ESP32 Arduino: Creating a FreeRTOS task
• How to use ESP32 Dual Core with Arduino IDE

Logistics

Manufacturing

• Pipeline
  1k-3k units/day
  target 10-100k/day ?
  
• Custom case
  R&D, injection molding
  
• QC plan
  TBD to evaluate time/cost