Bluetoth sensor for Internet of things

### DESCRIPTION 

Helo! I’m a student of Electronics and Telecommunication in Rzeszow University of Technology in Poland. 

I design sensor to measure temperature, pressure and humidity when we use BME280 sensor.

If we use different sensor we can measure everything.

I use low energy bluetooth v4.2 with uart bus. 

STM32F1 is low energy and low budget microprocesor.

Simply LED Display is used when we do not use transmissions bluetooth.

This is developed project to use many type of transmisjion with uart bus and many type of sensors.

The device is powered by Li-Ion cells - the charger is placed on PCB.

We can use only one module in this PCB - when we supply the device through an external power supply and not use a display.

### TECHNICAL DETAILS (With project photos)

In project we find:

• STM32F103C8T6

• Bluetooth with USART bus

• Charger TPA4096

• BME280 sensor

• Simply LED display

### Words to PCBWay

As you can see on the prototype picture, it is quite messy and not usable in a real usage scenario, a PCB would be really handy!

Thank you for giving us, students and electronics enthusiasts, an opportunity to sponsor our projects!

I hope this will be the beginning of an happy relationship for my future projects!