I am working on a nRF52 project where MPU-9250 is connected with i2c interface and (ssd1331) display will be connected via spi.
Once the device is connected, mobile will pass struct data to do initial set up. This data will be:
• Name of device: 15 Chars long
• Unique ID: A uuid
• Current Time
Device Name and unique id will be stored in some permanent store like eeprom so it does not get erased on device disconnection or firmware update.
Connection: Device needs to be bonded with the mobile phone. When mobile detects this device user will click on connect button on mobile and on IOT device user have to press the button down and hold it down till it gets connected.
As Mobile will recognise the service uuid of this IOT so it will bond. If bonded it should connect next time automatically.
On every connection mobile will send current time. This time will be displayed on the OLED (SSD1331). Once the time is sent to nrf52 this time will be kept upto date via some timer etc. So in case the device gets disconnected OLED keeps displaying time correctly.
Service 2 will be responsible for sending mpu-9250 data to mobile. Also we will display the data displayed on OLED (SSD1309).
We will have struct of acceleration, gyration, magnetometer and angle.
We will need to show smooth data by doing filtering and data averaging. There are articles online
which tells how to do this for Arduino but we can use that technique for nrf52.
Over the air firmware update:
Firmware should be updated via over the air.
Your expert help is needed in creating low power design.
Bu iş için 25 freelancer ortalamada $660 teklif veriyor
Hello I have got your job posting “Embedded C project with nRF52” and I am very much interested to work in your project. I am a circuit designer and have more than 5 years experience of working with the Analog/D Daha Fazla
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Dear Sir I am very interest in your job as an experienced engineer. For 10+ years, I have been working in this field. Specially, I have a good experience to used the nRF52832. Also I have mastered MPU IMUs and OLED Daha Fazla
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Hello, Deep is here from India. Basically I'm Embedded System Developer. I have experience with NRF52, MPU series gyroscope amd OLED displays.
Dear Sir, I have full set of nRF Bluetooth development kit. Also, I have experience in designing extremely low power and low profile electronic circuits for special applications. I can provide, full functioning code Daha Fazla
Hello Sir, an Amazing project from your side. I do have experience with, nRF52, MPU-9250, SSD1331(0.96") as well as i2c and SPI communication protocol. I have also done the EEPROM read/write stuff as well. In the Daha Fazla
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