Development projects combining software and electronics

In addition to the purely software project these are:

I can offer development projects primarily for telemetry, industrial control and building automation, where used slow and energy-efficient wireless network:
Wireless data collection from battery-powered sensors.
Detection of air flow using wireless temperature sensors
Temperature measurement in beehive.
Usually it is a device with microcontrollers or a device based on a single-computer like Raspberry Pi, Banana Pi and others.