Flowcode Support Board

Hi guys

I ordered some probes from china and the ended up being DS18B20, I found the example on wiki but for some reason it will not compile to the esp32, Keep getting warnings and then it fails Could this be something I'm doing or a problem with the 1 wire component?

Hi,
Your UART is set to Software mode, this isn't supported on ESP, could you use a hardware channel?

Hi Leigh

Thanks that worked now to figure out why I'm getting a loads of 0000 probably not connected to the right pin on the esp32 module Is the pin 10 (esp module) Port A25 the correct pin for this?

The OneWire pin can be any of the digital IO pins. Yes it is pin IO25 currently in the example.

Do you have a pull up resistor between A25 and VCC. I used a 1K resistor for my testing and that worked well.

Hi Ben

The 1K did the job I was using a 47k which i saw on some web site it would work then stop working. Is it possible to use floating values in the PID conversion? say I want to set the set-point to 78.1, 78.2, 78.3 etc

Currently you would have to say multiply everything by 10 so instead of controlling to the degree you would control to the nearest tenth of a degree.

78.1 would therefore become 781.

You would have to divide back down before displaying the number again etc.

I am considering adding a Float buffer type to the DSP components but it's tricky and so far I'm not 100% sure how to do it cleanly.

Thanks Ben

I will try this and see how I get along