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Show us the PCB and schematic. I think, you got high noise and/or something not connected properly. Can you check the ADC input pin with Oscilloscope?

Interrupt errors:

The two PICs have different interrupt table. Delete the interrupt an recreate. PIC changed, contents of interrupt enable, disable and handle code not. Maybe same error with EEPROM.

The first time I tried to compile, only replacing the PIC module (properly reconfigured) I had this error: I've seen this type of inexplicable errors in earlier versions of Flowcode after same step. I'm not sure what is causing this, maybe some cache problems. Until Benj solve this, try the followi...

Looks like, i've mixed up the things... :D Well, the Nextion display needs around 250 - 300 ms after power up to initialize itself. Just an idea, you can use this time. In the display, create a "welcome" screen (logo, picture etc.) as the startup screen (page 0). Initialize the controller, after ini...

Hi Abhi! Try to add 250-300 ms delay before UART initialization. If you turn on the Nextion display, it's send out some data and it can make overflow condition in the PIC's receive side. Or, right after the UART initialization, try this C code: U1CON2bits.RUNOVF=1; U1 means UART1, modify it, if usin...

This must be some kind of RS232 problem. My hint is buffer overrun problem. For test, put delays between the print commands. Eg: print temperature 1 delay 250 ms print temperature 2 delay 250 ms print temperature 3 delay 250 ms etc. 250 ms delay must be more than enough, later you can test, what is ...

Bluetooth is for data transfer, see Wikipedia: https://en.wikipedia.org/wiki/Bluetooth

You can't use it to transfer pure square wave. HC-05 bluetooth module is an UART - Bluetooth module. You can use it to send (and receive) data from a device to another.

Build menu -> Project options: set the CPU clock speed (Hz) to the correct value.

In the CPU configuration menu, change some values:

What modulation is used by K7? Not the last point of view.

This type of work is suitable for FPGAs, not for microcontrollers. You can buy Ethernet-to-Fiber converters with Gigabit speeds. A simple microcontroller can handle up to 115200 Baud via UART, it's far away from acceptable Ethernet speed. Your linked modules good for long distance UART but not for E...

Normally, it's not possible.

I think, you should choose other PIC. PIC12F675 don't have enough memory regions to handle I2C and displays. Check for PIC12F1840.

You can download the application from here (pCloud folder): https://u.pcloud.link/publink/show?code=kZecJyVZlAY1x9LRv5Xq5Jeujg0zDyoi9ySk Please note: the application contain caclulations that are not available for every PIC microcontrollers. Check datasheet of the microcontroller. Eg.: you can use T...

Try to use these values (with 8 MHz clock):

Prescaler: 1:64
Postscaler: 1:13
PR2: 59 (40.064 Hz)
PR2: 48 (49.058 Hz)

C code, SPI example (check datasheet for explanation): Setup SPI module: SPI1CON1 = 0b11000000; SPI1CON2 = 0b00000011; SPI1CLK = 0; SPI1BAUD = 39; SPI1CON0 = 0b10000011; Using SPI module: cs = 0; SPI1TXB = 0; while (!PIR3bits.SPI1RXIF); data_0 = SPI1RXB; SPI1TXB = 0; while (!PIR3bits.SPI1RXIF); data...

Missing include? See: http://picforum.ric323.com/viewtopic.php?f=62&t=226

Because nothing to optimise on a simple instruction and doesn't matter, what you're using, C or ASM.
or
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Try:
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Hello!

Yes, you can use it but in this case, only for digital input because the MSSP module. The Flowcode input macro using the PORT register. The PORT register reflects the PIN voltage (over the limit (H) or under the limit (L)), regardless of the pin type, input or output.

Maybe not too late info. Check the datasheets. The trick is in the SPI waveform modes.

Check IC (module) AD9833. With 25 MHz clock, you can get output frequency (for example) 19,999.96602535247802734375 Hz. This close enough to 20 kHz. I think, for home projects, it's more than enough. One step is 0.0931322574615478515625 Hz (25 MHz/2^28). In this chip, one step (bit) is always the sa...

For example, let's see the datasheet of PIC12F1840. The PWM frequency is based on Timer2 settings (prescaler + PR2 values) and Fosc. The frequency is not is linearly related to the PR2 value. For equation, see datasheet. You can't say, one step in PR2 equals n Hertz. PWM_PR2.png PWM_PR2_2.png As you...

I've got only Flovcode v6. If it's ok, I'll share a working example.

Hello Abhi! Easier than you think. Start up SPI and check datasheet. You have to send only two bytes. First byte upper bits is command bits, the others are the data for the DAC. UInt variable (base) BYTE variable (data_h) BYTE variable (data_l) UInt variable (data) base=0b0011000000000000 //upper fo...

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