Recent Posts

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General discussion / Re: Process automation: accurate temperature sensing
« Last post by VirgilBo on October 08, 2017, 05:35:23 am »
Awesome article as per usual, Andy! Thanks for sharing.
General discussion / Arduino Pro Mini and Nokia 2730
« Last post by optizyme on October 02, 2017, 05:17:44 am »
Hi there,

I have Pro Mini 3v3 version and Nokia 2730. When reading the article, do i miss something? Because i could not find
development board and arduino mega connection and full source code. There is (i think) a library of arduino mega but
i am not sure if i can adapt to pro mini. If i could, should i use 5V version or 3V3 version?
I am very confused.
In short sentences, i would like to use 2730 screen with arduino pro mini.
Hardware projects / Re: Cinebench 15 Z800
« Last post by Urschnak on September 26, 2017, 01:29:30 pm »
Well, i got 1558cb with 2 x5690 (12 Cores, 24 Threads @ 3,46Ghz)
Hardware projects / Re: Hacking an HP Z800 motherboard into a standard PC case
« Last post by Urschnak on September 26, 2017, 01:26:35 pm »
Here's the final WIP, awaiting for review/P91 pinout confirmation.

I found the information you are looking for on page 8 in this thread:

Memory fan is from top left to right:

TACH, 12V, Ground

General discussion / Re: Cheap PCB production
« Last post by Andy Brown on September 20, 2017, 11:25:36 am »
Hi Ricky. I've also noticed that with the 4-layer boards. I think I read somewhere that they go to a different manufacturer but I've never seen that confirmed. I only wish they'd fall in price like the 2 layer boards have done.
General discussion / Re: Cheap PCB production
« Last post by RickyTerzis on September 20, 2017, 09:49:55 am »
Hi...i am a new user here. In my case i tried ITead and PCBWay. The quality of the 4 layer boards is, I think, markedly better than the 2 layer boards when compared at the limit. The drill accuracy is better - they tend to hit closer to the center of the via pad. The solder mask aperture positioning seems to be better as well. When I received my Nanocounter boards back from PCBWay I was very pleasantly suprised to see that the soldermask was intact between the pins on the 0.5mm pitch QFN40 package on every board in the package.
Dir sir,
Yes, I know. So far I can use your sharing project to connect Uno and STM32. Could you please give me some turorials in your code so I can edit to get the adc value from STM32. I see in the file named CommandExecutor.cpp have a switch case :
    case cmd::TPIN_GPIO_CONTROL:

Of course I will declare the adc peripheral of STM32, and add that one in this switch case. Could you please give me some directions so I can edit code in 2 side: Uno and STM32 to accomplish getting the adc from stm32 to uno.

Thank you in advanced!
General discussion / Process automation: accurate temperature sensing
« Last post by Andy Brown on September 16, 2017, 09:11:03 am »
I've just published a new article describing how I built a temperature sensing board to compliment the earlier relays and triacs board.

Now that I've got sensing and switching I can mount these two boards inside a PC case and get working on the middleware software. Here's a picture of both the boards ready to mount in the case.

Hi, interfacing a 3.3V (or lower) STM32 to a 5V Arduino is best achieved using the I2C bus.
Hi all,
The project named Arduino Uno R3 graphics accelerator shield uses no pins was shared by Mr. Andy is really wonderfull for me. Could you all help me some ideas so I can get the data from STM32 chip ( such as ADC, etc) and return to the UNO board?

Thank you all and looking forward feedback from you all!
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