Arduino Pro Mini Clone LGT8F328P

8F328P-U MCU used by the LGT8F328P is an Atmel MEGA328P compatible chip.LGT8F328P  architecture No Design Is Relatively New, Stronger Far Than Functions decreases in peripheral Tools Atmel MEGA328. Especially the program encryption ability is far more than MEGA328.

Specifications:

1. LGT8F328P  Can Use 5V Power Supply 3V3 And Run At 16M Frequency, Level Excellent Compatibility.
2. A Built-In High-Precision the RC, No External crystal Back Can Be Stable Operation.
3. Less And decreases in peripheral instrument parts, Circuit Design Is Simple.
4. 12-bit ADC (analog-to-digital conversion)
5. On-Board DAC
6. Owned Inventory the GUID (Unique own ID) Can Be For on used chip solutions Encryption Program.
7. A Built-In .internal 1.024V / 2.048V / 4.096V ± 1% Calibratable Source Reference voltage software.
8. The PWM pin adapter Number: the D3, the D5, the D6, the D9, the D10, D11.
9. MCU LGT8F328P
10. FLASH 32Kbytes
11. SRAM 2Kbytes
12. E2PROM 0K / 1K / 2K / 4K / 8K (FLASH Share)
13. PWM 8
14. Frequency 16MHz (Maximum 32MHz)
15. ADC 6 passageway12 position
16. DAC 1passageway8 position
17. UART 1
18. SPI YES
19. TWI (I2C) YES
20. GUID YES
21. Internal benchmark 1.024V / 2.048V / 4.096V ± 0.5%
22. System logic level Factory 3V3 (switch from pad to 5V)

Now we're going to look at the 32MHz Nano-sized drop-in replacement

6 Simple Steps to get an LGT8F328P-based board running at 32MHz

1 Download the LogicGreen zipped resources here
https://github.com/LGTMCU/Larduino_HSP
There's a copy of this zipped folder right here on my GitHub

2 Extract the download (unzip it)
and move the unzipped LGT/var folder to under the hardware folder in your Arduino sketch folder. If you do not have a hardware folder in your Arduino Sketches folder, just create one.

Your structure should look like this:

3 Replace the boards.txt

In the Hardware -> LGT -> AVR folder delete the boards.txt.
Then copy the boards.txt in this GitHub there in place of the one you just deleted.

Testing

4 Fire up the Arduino IDE (or restart it if already running)

5 Select the right board
Go to Tools, Board and scroll down until you see the next set of LGT8F boards, one of which will be 32MHz variant you just added. The original LGT8F328P board will now be described as (16MHz)

Remember, in your future sketches, always add in the #include for the <avr/power.h> as shown in the video.

Finally, add in this statement before anything else in the setup().

6 Load the Prime Numer Test sketch from this GitHub, build and run.

In the Serial Monitor window you should see this:

If you get this instead (and your Serial Monitor is set to the correct speed)

then your board might not be running at 32MHz. Is your Serial Monitor speed set to 9600? Did you select the 32MHz variant of the board? Did you restart your Arduino IDE after replacing the boards.txt file? Did you put the unzipped folder under the correct hardware folder in the Arduino Sketches?

What's this GUID then?

Each LGT8F328P has a unique GUID (serial number) built-in. Useful for encrypting things.
To retrieve the number (it's read-only) do this in your sketch setup():
uint32_t guid = (uint32_t)&GUID0;

To display that number in its intended HEX format do this:
Serial.println(guid, HEX);

Simples, right?

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