I just got a new, preprogrammed BME 688 development kit.
If I connect a USB power supply the yellow LED starts flashing. A moment later the red LED blinks 5 times, pauses a while then blinks 5 times again pauses and so forth. However even if I wait several minutes I don't find any data on the SD card except the default config file.
Do I need to do any additionals steps e.g. press a button? I didn't connect the Android App so far.
Thanks in advance,
Solved! Go to Solution.
If BME688 dev kit is working properly, RED LED shall blink every 1s.
If not, please check as below.
1. Check there is battery inside BME688 dev kit. ( And, battery power)
2. check there is *.config file
3. Download BME688 Dev kit Software (v.1.5.0)
4. Update firmware for BME688 dev kit
5. Remove previous bmeconfig in SD card, and copy the attached file into SD card.
Please let me know if you still have issue.
I checked the following:
Maybe the ESP32 can not communicate with the sensor board from Bosch? I found several hair thin wires (0.5 mm long) at the PCB as checked it with my loupe.
Android app for BME688 is to check specific gas what you already learnt from AI studio.
The data in SD card you can check thru SD card reader, not android app.
Please follow below steps.
Just in case, I attached my test files.
Please let me know if you have any questions.
after flashing the board it is working now.
Maybe the pre-flashing software was not properly done. The firmware version shown by the App is still the same...
However thank you very much for you supprt.