Arduino for STM32

Will post some photos for now.

First screen https://yadi.sk/i/JEw6Z3Qn9BL7XQ
Measuring head with a pair of diodes for measuring ripple and MAX44009 and EML6075 sensors https://yadi.sk/i/4nfUG2rKQtr7yw
Ripple spectrum. The main peak on 78 KHz. https://yadi.sk/i/EMGYnlafuFO7Ow
Light waveform from ...

Evening, Steve!



Tried the only EML6075 on second I2C bus. Still zero.

If the address is recognized but the value read is 0 this can mean:
- your read routine is wrong



Possible in principle.
I copied the reading routine from lib to separate pin. It is very simple and usual and absolutely ...

Tried the only EML6075 on second I2C bus. Still zero.

Thinking the same way as you: the most relaible solution is transfer from the Roger Clark incarnation to the Official STM32 Core.

Currently I have ready-made hand-held project to measure LED lamp parameters while buying in the market - mainly ...

Tried second I2C

Both adresses detected.

But only one sensor is working (MAX44009). EML 6075 still gives zeros:
16:17:25.609 -> Scanning...
16:17:25.609 -> 0
16:17:25.609 -> 0
16:17:25.609 -> 0
16:17:25.609 -> 0
16:17:25.609 -> 0
16:17:25.609 -> 0
16:17:25.609 -> UVA: 0.00
16:17:25.609 -> UVB: 0 ...

Hi, mrburnette!

Yes, all your assumptions are right.

No, I2C scanner ("i2c_scanner_wire") doesn't see any sensors:

No I2C devices found

If i use "i2c_scanner_softwire", then both devices present:

16:40:09.145 -> Scanning...
16:40:09.145 -> I2C device found at address 0x10
16:40:09.145 -> I2C ...

Hi!

Trying to use simultaneosly UV sensor EML6075 and MAX44009 on I2C1 (PB6, PB7). Sensor do have pullup resistors to Vcc.
Code from libs extracted and placed inside program.

1. When using the STM official core based on HAL - both sensors work OK
2. When using the maple core hardware WIRE ...