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Welcome Unknown! This project was created with intention to get light and smart system collecting measurements from various sensors and controlling simple remote devices. Applied hardware is tremendously low power consuming nRF51822 modules integrating Cortex-M0 & 2.4Ghz transceiver, so called System-on-a-chip. Worldwide popular Bluetooth 4.0 Low Energy stack delivered (called S110/S120) by Nordic Semiconductor provides extrasave and reliable communication.

This project comprises software for 3 types of devices:

1. INTEGRATOR_WITH_MODBUS is application intended to go with SoftDevice 120 and institutes central point of the whole system. It is a master device and is able to drive communication with 2 other types of devices described below.

2. TEMPERATURE_SENDER is simple device basen on S110 which sends advertising packets containing temperature measurements and battery level. Because advertising mode is non-connectable, only one way communication is possible. What's more this app is compatible with Android/iOs application nRF Temp 2.0.

3. LED_DRIVER which combines TEMPERATURE_SENDER features with two-ways communication granting you possibility to change its state. In fact it intimidates some controlable device, e.g.: relay, temperature regulator and so on.