-
QRCode
QR code generation library in C, optimized for low-power devices, such as Arduino. (by ricmoo)
-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The QR code is generated on the ESP, using this library: https://github.com/ricmoo/QRCode. The bot is connecting to my home network, so it's just encoding the url for the onboard web server as a QR code.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.