There are some interesting algorithms: Depending on how often you need to reverse the bits of a byte 0 - the quickest technique is probably a lookup table rev[256] Where : rev[0] = 0 rev[1] = 0x80 rev[2] = 0x40 etc Then to reverse a byte rev_byte = rev[byte]. See also Hacker's Delight (Henry S Warre...

The buzzer component only turns a pin on (or off) to play a tone - which is a feature of the buzzer hardware.... The frequency value is only for simulation. It might be possible to alter the tone using PWM either with the buzzer device or by outputting directly (via a transistor or amplifier) to a s...

I can't replicate the issue (I think you've mentioned it before) - I tried PuTTY and idf.py - p COM6 -b 115200 monitor - and both work as expected with / without the interrupt. Which terminal program are you using? There is definitely some repeated data that is 'correct' (A0:B7:) - but then everythi...

Hi Stefan,

Default string size is 20 - and if somewhere there is a 'make a copy' box checked that might explain things? Passing strings by reference (not copying them) is usually the preferred option - and quicker too - but the default seems to be to pass by value.

Martin

The read should work AOK - I tested on a esp32-wrooom - and the result looks okay....

This just outputs the MAC to UART..

Martin

First up - I'd like to congratulate the Matrix team on the release of v11. There are lots of great new features to try - they have worked very hard - so I hope they are all off to the pub tonight for a well earned pint! I'd also like to be the first to offer a v11 specific project (but it's only sli...

As an alternative method -take a look at 'hash functions/values' - this is a common technique to assign a (not necessarily but usually) unique value to a string.

See https://en.wikipedia.org/wiki/Hash_function

For some interesting ideas

Martin

12 digits won't fit in a 32 bit variable - which could hold 8 hex digits (4bits per digit)

You could convert to 3 x 16bit (unsigned int)

Martin

Ben beat me to it

Is the signal being read correctly - you are just reading a pin for RemoteUp, EndStopUp etc - check that you are getting 0 or 1...

|| and && do work correctly for OR and AND ...

Martin

Hi Jorgen, I'd recommend some parenthesis around the parts of the OR So if (A = 1) || (B = 1).... Alternatively - as A and B are 0 or 1 (RemoteUp and EndStop!) - declare them as boolean (true = 1 and false = 0) and then just if A || B ... (Use || for OR and && for AND - though bitwise OR sho...