hi. im interested with this project since it is somewhat similar to mine, can i directly connect my max30102 to the beetle and send to the pc for further processing? and do i need ...
JaneYu 2023-01-15 22:35:45 183 Views9 Replies hi. im interested with this project since it is somewhat similar to mine, can i directly connect my max30102 to the beetle and send to the pc for further processing? and do i need to purchase an USB ble link so that i can upload arduino code to the beetle microcontroller? because the arduino does not recognizing the beetle, it just shows red lights when it is plugged in. thank you so much for your help.
I wired the sensor as described to an Arduino Uno as described in the tutorial. It worked fine using the I2C comms.
After I switched the switch on the sensor to UART mode, nothing seems to work anymore, not even the RED LED is lit.
Any idea what could be the matter ?
JaneYu can we read the data for heart rate and oxygen directly via UART using a PIC microcontroller? That would be a great thing.
JaneYu As long as your PCI microcontroller has the TTL UART interface, than you could read the hart rate and oxygen data by using this sensor.
But unfortunately, we do not have the example of the PIC microcontroller, please refer to our Modbus protocol, which posted on the wiki to program on the PIC.
pls check these I2C functions in the sensor library.
https://github.com/DFRobot/...
https://uploads.disquscdn.c...
JaneYu Hi,
Users could only get the Heart , Blood Oxygen and chip temperature data via our MODBus protocols.
JaneYu Hello DFRobot Support,
Currently I have bought a MAX30102 and I followed all the instruction of the https://wiki.dfrobot.com/SK.... But I still can not start read the parameter and always get the "init fail!". I use the ESP32, connect the VCC to 5V, GND to GND, C/R to D2, D/T to D3. I also tried the UNO but didn't work either. Please help me fix this issue. Thank you.
JaneYu Yes it could be used on the Beetle.
And from your description, we could tell your problem is more like on the Beetle side.
Could you try to swith another USB cable and USB port of your PC, to see if works?
You donot have to purchase the USB BLE link.
JaneYu Hi, The data manual is the data manual of MAX30102. There is also an MCU on the sensor for further data processing, so the instructions in the Arduino library file are different from the data manual. As shown below, 0x14 is sent to V8520 rather than communicating directly with MAX30102:
https://uploads.disquscdn.c...
JaneYu 
