The device should send temperature data over nrf24 radio every 5 minutes, but also should handle messages received via nrf24 with ping-pong principle: Receive a message, send back required data.
DoD: Temperature measurement can be retrieved by sending a command via nrf24 radio to STM32 board
DoD was met. All the code related to data sending could be found in main.c and radio.c
All the code could be observed in linked Pull Request
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CeSiumUA
commented
4 months ago 
The device should send temperature data over nrf24 radio every 5 minutes, but also should handle messages received via nrf24 with ping-pong principle: Receive a message, send back required data. DoD: Temperature measurement can be retrieved by sending a command via nrf24 radio to STM32 board