Developed Tor: Flow Metrix Inc.
Key Technologies:
Microprocessor: TI MSP430F1132
Battery: 3V coin cell
The Problem:
Develop a low-cost Water Leak Detector that detects leaks in pipes by "listening" to the
acoustic signiture of a water leak.
Device must conserve power when not operating; the project has a goal of operating
for more than 3 years on a 3V coin cell.
The Solution:
CoAutomation worked closely with the design team to complete the hardware design
and write the firmware that will record "sound" readings using an Analog-to-Digital converter,
filter the recording and determine whether a leak is present.
We created the firmware to use the low-power modes of MSP430F1132
to mimimize power when not "listening" and make best use of the addressing modes of the
MSP430 when filtering a recording.
The firmware takes maximum advantage of the ability to start and record A/D conversions while
the CPU remains asleep.
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