Talking Spirit Level


A pair of talking spirit levels constructed using Arduino microcontrollers and the MPU6050 3-axis accelerometer. Though they differentiations in size, the construction and components of the two levels are virtually identical. A full build blog can be found Here.

The software is freely available for download. Version 1 is the initial release and implements the features described in the build blog above. It is available for download Here.

Version 2 of the software, released October 2020, fixes many bugs and adds EEPROM permanent storage for the settings. It can be downloaded Here.

Software version 2.5 introduces the MPU6050_Light library for greatly simplified control of the MPU6050 and faster performance with greater accuracy. It will be the last version to use the Talkie speech synthesiser and thus the last to run on unmodified V1 hardware. You can download version 2.5 Here.

Video Demo

The below video demonstrates the larger of the two levels in operation.

Larger level

Small level

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