About jmjobin

jmjobin · 2020-12-22

Developing with B-L072Z-LRWAN1 LoRa®Discovery kit with sensor board and GNSS Teseo.I added an OLED ssd1306 and connected it on IC2 PB8 PB9. I can send commands but when I send data I very often get a display hang. How should I handle PB8 PB9? Should ...

jmjobin · 2020-08-04

No idea on how to resolve this problem. If I compile and run without the board the message is error on init the sensor board. Any clues?

jmjobin · 2020-12-23

Thank you Clive, To go back to the Pull UP resistors, You were right and "you are the best" :-D, I used the 1k8 at 3.3VDC and all is working fine... Thank you... This was the solution.

jmjobin · 2020-12-23

Clive, Thank you good advice I will try this too, (1k5).I have another point that looking at the code I cannot understand is how is the I2C speed sets in the code... STM32CubeFunctionPack_LORA1_V2.2.0Any idea?

jmjobin · 2020-12-22

I think I found the problem. Tried PullUp resistors 10k did not help.Tried 5VCC and not 3.3V and it worked for all display. At 3 .3V only one display was OK.

jmjobin · 2020-12-22

Thank you Clive for your answer. Looking at the code STM32CubeFunctionPack_LORA1_V2.2.0, I am using the same bus as the sensors and the sensors still work well. I cannot understand what is going on. my code also worked well for several hours and then...

jmjobin · 2020-09-14

My Followup:To answer my own question: Since I do not used to give up... After some better understanding of the coding I decided to buy the IKS01A2 as used in the demo app since the code was locking on the LSM6DSL MEMS 3D accelerometer.As long as we...

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B-L072Z-LRWAN1 LoRa®Discovery kit using PB8 and PB9 IC2 with a display. Does not function properly

FP-ATR-LORA1 software using Only B-L072Z-LRWAN1 and GNSSA1A1 WITHOUT sensor Board does not compile properly. If I disable #define sensors as mentionned the compilation goes on tilt

Re: B-L072Z-LRWAN1 LoRa®Discovery kit using PB8 and PB9 IC2 with a display. Does not function properly

Re: B-L072Z-LRWAN1 LoRa®Discovery kit using PB8 and PB9 IC2 with a display. Does not function properly

Re: B-L072Z-LRWAN1 LoRa®Discovery kit using PB8 and PB9 IC2 with a display. Does not function properly

Re: B-L072Z-LRWAN1 LoRa®Discovery kit using PB8 and PB9 IC2 with a display. Does not function properly

Re: FP-ATR-LORA1 software using Only B-L072Z-LRWAN1 and GNSSA1A1 WITHOUT sensor Board does not compile properly. If I disable #define sensors as mentionned the compilation goes on tilt