Lockii is a smart lock device managed by NFTs on the Neo blockchain.
The pigpio C library is a prerequisite for the pigpio Node.js module.
Run the following command to determine which version of the pigpio C library is installed:
pigpiod -v
For the Raspberry Pi Zero, 1, 2 and 3 V41 or higher of the pigpio C library is required. For the Raspberry Pi 4 V69 or higher is required.
If the pigpio C library is not installed or if the installed version is too old, the latest version can be installed with the following commands:
sudo apt-get update
sudo apt-get install pigpio
Alternative installation instructions for the pigpio C library can be found here.
Warning: The pigpio C library contains a number of utilities. One of these utilities is pigpiod which launches the pigpio C library as a daemon. This utility should not be used as the pigpio Node.js package uses the C library directly.
npm install pigpio