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Environmental Monitoring System
this entry is written twice, in full
- 1.in brief
low-power ARM sensor system
- 2.in general
A sensor that has to survive on one battery.
- 3.in particular
An ultra-low-power ARM Cortex-M system in C/C++ with I2C sensors and wireless telemetry.
- 1.in brief
a sensor system that has to survive on one battery
- 2.in general
A sensor that has to last, on one battery.
- 3.in particular
Very low-power firmware on a small chip, reading sensors and reporting wirelessly.
note
Firmware for an ARM Cortex-M2 monitoring temperature/humidity via I2C3 sensors with aggressive power management for long deployment, hitting ~95% measurement accuracy with LCD + wireless output. The battery is the design constraint and everything else negotiates around it.
note
Firmware for a small low-power chip reading temperature and humidity from sensors beside it, with aggressive power management so it can be left somewhere for a long time, reaching about 95 per cent measurement accuracy and reporting to both a screen and a wireless link. The battery is the design constraint, and every other decision negotiates around it.