LowPowerLab Forum

Hardware support => Moteino => Topic started by: jackkomo on April 26, 2018, 11:31:51 PM

Title: Using RF moudle using Chinese new chip
Post by: jackkomo on April 26, 2018, 11:31:51 PM
Hello, all

i learned a lot from Felix's lowpowerlab, and thanks a lot for his alsome project.

i try to use chinese chip which can totally replace ATMEGA328P, and made a new pcb.  Works well .

By the way, the new chip is call LGT8F328P
Title: Re: Using RF moudle using Chinese new chip
Post by: LukaQ on April 26, 2018, 11:55:31 PM
Is it any good over wider temp range?
Title: Re: Using RF moudle using Chinese new chip
Post by: jackkomo on April 27, 2018, 01:13:00 AM
Not the temp. but the improvement for others,here is the list:

Title: Re: Using RF moudle using Chinese new chip
Post by: LukaQ on April 27, 2018, 01:36:54 AM
from what I have seen, it doesn't switch pin states faster than 328 @ 8MHz output on pin, slower slew rate
Title: Re: Using RF moudle using Chinese new chip
Post by: Felix on April 27, 2018, 08:43:47 AM
I like how it has full Arduino Support while the UNO/328p has only Partial ;D
This is china's chance to impress us :D

How about low power? I'm very curious in that department.
Title: Re: Using RF moudle using Chinese new chip
Post by: jackkomo on April 28, 2018, 02:36:12 AM
Hi, Felix

This chip is totally new design, and own bootloader. For the power, it has two level:  DPS1 7uA  and DPS2 1uA.
Title: Re: Using RF moudle using Chinese new chip
Post by: Felix on April 29, 2018, 10:52:24 AM
Here's a review by an avrFreaks user (original post here (https://www.avrfreaks.net/forum/forbiden-tech-china-has-arrived?page=all)):
QuoteThat's right, I ordered a board with the infamous AVR clones from Logic Green. It's an Ocrobot Alpha with the  LGT8F328P MCU. The board itself is pretty crappy, no crystal, uses an internal 32MHz oscillator divided by 2 (16MHz).

So it's kind of an Arduino clone, comes with the optiboot bootloader. But is this MCU a piece of crap, or should Microchip be worried and start preemptive lawsuits? I will test it and find out.

The markings on the MCU have been erased, but I did a memory dump (the flash is mapped as a RAM address, like the new Tiny models) and it checks out.

(https://www.avrfreaks.net/sites/default/files/ocrobot_alpha.jpg)