Post Created date
Need a easy hack to monitor 1.8V
sparrow2 wrote:I would try to get it working with a LM339 or perhaps a NE555 Well LM339 itself need at least 2v as power supply, . Maybe you would change requirement, so that...
Monday, 4 February 2019 - 17:56
DS3231 time varies through on/off situation
makhorsandi wrote:I'll activate the brown out detection fuse bit of the MCT to see if the problem solved. You need to select : 1) BODEN 2) BODLEVEL (table 15) 3) SUT1, SUT0 (table...
Sunday, 3 February 2019 - 08:26
DS3231 time varies through on/off situation
makhorsandi wrote: if I switch it's power on and off frequently, it's time value increases occasionally. In my last test, I switched the power as 5 seconds on and 5 seconds off;...
Sunday, 3 February 2019 - 05:55
Atmel ICE -- waste of money??
tonyg17 wrote:Has anyone else had a GOOD experience with the Atmel ICE? Experience 1 I can erase, write, verify, fuse, lock, full 32kb of ATmega328P in 6 seconds with a single...
Saturday, 2 February 2019 - 02:37
How to Programm tiny once bolded on board
ki0bk wrote:What's the secret?  1st step: Use 1mm drill bit to widen the plastic case of IDC connector. But very carefully with gentle force inorder not to damage the inner metal...
Wednesday, 30 January 2019 - 18:33
How to Programm tiny once bolded on board
mu234 wrote:Ok, what the usuall 2x3 header that most designs use for ISP ? Best.   this is my solution for both soldered 2x3 header or spring contact. I inserted the spring...
Wednesday, 30 January 2019 - 14:29
Driving 5 inch 7-segment display
ULN2003 is a good choice, an array of NPN darlington transistors , . WARNING! ULN2003 sinks the outputs at max current, it doesn't do any current regulation. Don't forget to add...
Monday, 28 January 2019 - 22:15
How to create communication protocol with byte stuffing?
clawson wrote:It's been a pretty long time since UART connection were "unreliable" so it looks like overkill to need sequence numbers and CRCs and stuff . Well the RS-485...
Wednesday, 23 January 2019 - 20:42
Communication between functions
levani2828 wrote:I just want control 2 PWM in one function first one must take every meaning from 100 to 120 while second one stays same, in other function second one must take...
Thursday, 17 January 2019 - 18:32
Full Swing Crystal issue
avrcandies wrote:Try using 10MHz, verify it is working , then move up from there 3 PCB are working now with new 20 MHz crystalls. seems just 1 crystal damaged, I am preparing 12...
Wednesday, 28 November 2018 - 07:45
Full Swing Crystal issue
ki0bk wrote:m.majid wrote: T > 77°C Ouch! that's hot!  What are the spec's for your xtal?   actually crystall temp is approx 25° less than MCU, with MCU 77 °C, ...
Wednesday, 28 November 2018 - 07:07
Full Swing Crystal issue
I setup PCB-2 with exactly the same parts like PCB-1 , and repeated the test on both PCB-1 and PCB-2. . under the same test conditins, there was no incident of issue on PCB-2,...
Tuesday, 27 November 2018 - 17:36

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