I present my new device - Pulse Counter. The device operates on the nRF52832 chip.
The capabilities of the device:
Monitoring of the pulses, data storage is implemented on the nRF52 chip.
Monitoring of two channels is available.
Two modes of operation, the first mode - working (monitoring), the second mode - receiving settings (standby). In the first mode, the device always sleeps, wakes up due to an external impulse from the connected metering devices (water, electricity, gas). In the second mode, the device is in the mode of listening to the radio, waiting for settings. Switching between modes is done by pressing the - mode button.