Post Created date
ATMEGA328P Programming
schematic seems correct, but on PCB it seems there is no track to GND of ISP socket (PIN6)
Thursday, 11 July 2019 - 06:04
Is 200mA DC regulator ok for a board with nominal currect of 180mA?
Brian Fairchild wrote:As usual with this sort of question there are many many things that need to be specified before the answer can be given. Let's start with... I agree.  ...
Wednesday, 10 July 2019 - 11:02
Is 200mA DC regulator ok for a board with nominal currect of 180mA?
LOSTISLAND wrote: Is 200mA DC regulator ok for a board with nominal current of 180mA? Is there any standard regarding this issue? theoretically, yes it is ok. your values : 180mA...
Wednesday, 10 July 2019 - 06:49
Series resistor value problem
see the datasheet of SN75LBC184 your circuit is quite different from what recommended in datasheet. see 11.1 Layout Guidelines , there is also a pull-up res at PIN 1(R)
Friday, 14 June 2019 - 09:27
UART Communication between 2.8V and 1.8V
"voltage level translator" keyword may help you to find some solutions on web
Friday, 15 March 2019 - 15:23
Relay control PCB
djoshi wrote:Is there any good guide i can read on PCB ,RELAYS and 250V AC design? Consider CLEARANCE (shortest path through air) and CREEPAGE (shortest path along surface)...
Tuesday, 5 March 2019 - 02:35
atmega328P: stack problem ?
Sorry I over looked #37: autsel wrote:the data in the external eeprom remain intact . I deviated because of #44 : autsel wrote:I take note. In fact, I always lost the first bytes...
Saturday, 2 March 2019 - 09:25
atmega328P: stack problem ?
autsel wrote:The point is this, initially the project did not have an external eeprom and I used the internal eeprom of the ATMEGA and I was corrupted the data in the eeprom. Also...
Saturday, 2 March 2019 - 04:25
atmega328P: stack problem ?
jgmdesign wrote:There have been threads in the past about EEPROM corruption in the 328 family. I had such an issue even with BOD. Usually the first couple of bytes of EEPROM take...
Thursday, 28 February 2019 - 19:05
Drive 7seg and additional LEDs
clawson wrote:The implication seems to be that once  DIG4..DIG6 are connected to the extra LEDs that not only don't they work but also DIG0..3 stop working True, I did similar...
Thursday, 28 February 2019 - 17:52
USART in MSPI mode as a fast shift register
RacerXR wrote:You'd want to read the current status of the pin, XOR it's value, and write it to the output pin. This would add several cycles. You also need to keep in mind that...
Monday, 18 February 2019 - 05:27
USART in MSPI mode as a fast shift register
RacerXR wrote: I was hoping for a simpler software only solution by setting up the USART to drive the TxD output low during idle. It's good to see an example that also applies a...
Sunday, 17 February 2019 - 12:26

Pages