An academic paper describing the engineering design of the AquaPing acoustic leak sensor is available for free download at the IEEE Tech Archive: Read the full update.
The AquaPing acoustic leak sensor has been configured to work with Home Assistant. For this demonstration, an inexpensive D1-mini ESP8266 WiFi module is used to provide a wireless link to Home Assistant as well as two-way communication with the sensor via I2C. Read the full update.
The first production run of the AquaPing is complete. Sensors have been packaged and are being shipped to the Mouser distribution center in Texas, where they will then be sent to all campaign backers. Read the full update.
We took delivery of 120 AquaPing printed circuit boards that have been manufactured by PCBWay. The PCBs are laid out in a 2 x 2 arrangement on 30 panels for pick-and-place assembly. Note the ENIG (Electroless Nickel Immersion Gold) surface plating on the copper pads. Read the full update.
A deep dive into the acoustics of leaks, plus the latest on AquaPing's campaign Read the full update.
This update describes some measurements that helped establish the AquaPing's capability to detect water leaks behind walls. Read the full update.
The AquaPing is not a flow meter, it's a leak detector. There is an important difference... Read the full update.
This update briefly reviews multi-tiered frequency filtering of the AquaPing. Read the full update.
This update discusses issues associated with using the AquaPing as a semi-autonomous, stand-alone I2C slave device. Read the full update.
Here's a look at the design iterations AquaPing went through on the way to the present version. Read the full update.