chip select for 2xUART Recently I have similar requirements 2 UARTs for a master device.
1 Connected to some slave devices (250kbps)
2nd as user interface connected to PC (115200bps)
.
mega324P offers...
Tuesday, 22 October 2019 - 18:11
PWM precision on Atmega 328P jiherve wrote:
The problem is :
If i adjust the cap then output period change only by step of half clock period instead of a continuous change as expected, and so for thermal...
hidden gem MrKendo wrote:
The idiom
while (x--) {}
is quite common for situations where you can loop 0 or more times (ie x can be 0).
awneil wrote:
and if it's terse code you like, why not...
Wednesday, 9 October 2019 - 14:01
Cleaning Signals from 300 ma sensor Scroungre wrote:Meanwhile - just what are you measuring there? The power rail? The signal out of your sensor? Where's the 'scope probe? Where's its ground...
Saturday, 5 October 2019 - 08:07
Protocol for streaming serial data? awneil wrote:Any suggestions for any "widely used" and/or "well-established" protocols for streaming serial data from a microcontroller-based box of sensors
DMX512 for lighting...
Odd array index behavior lautman wrote: I've hard-coded the indexes in this call arbitrarily to 4 (it works fine with any value 0 - 9) because if I use i, garbage ensues
So the code in #1 is your debug...
LLVM 9 http://llvm.org/ wrote:Despite its name, LLVM has little to do with traditional virtual machines.
The name "LLVM" itself is not an acronym; it is the full name of the...
Tuesday, 24 September 2019 - 06:00
Protecting RS-485 busses AN-1057 worthes to remind again, is mentioned several times before in this forum.
.
There are also robust RS-485 ICs that can survive from wiring faults and ESD of...
Recently I have similar requirements 2 UARTs for a master device. 1 Connected to some slave devices (250kbps) 2nd as user interface connected to PC (115200bps) . mega324P offers...
jiherve wrote: The problem is : If i adjust the cap then output period change only by step of half clock period instead of a continuous change as expected, and so for thermal...
Let's consider some calculations: . Assuming 3 phase signals 220Vrms=622Vpp converted and scaled down (ISOLATED, DC Sine wave, Vpp=1.1 V) connected to 3 ADC channels . ...
e0ne199 wrote:how do you get 620Vpp for 220VAC rms? you don't know how to calculate Vp-p from Vrms, please don't mess with 220V https://www.allaboutcircuits....
MrKendo wrote: The idiom while (x--) {} is quite common for situations where you can loop 0 or more times (ie x can be 0). awneil wrote: and if it's terse code you like, why not...
Scroungre wrote:Meanwhile - just what are you measuring there? The power rail? The signal out of your sensor? Where's the 'scope probe? Where's its ground...
awneil wrote:Any suggestions for any "widely used" and/or "well-established" protocols for streaming serial data from a microcontroller-based box of sensors DMX512 for lighting...
e0ne199 wrote:don't worry i have certified multimeter that complies with IEC standard (not the cheap multimeter that is made in china), That is not the point! The point is how to...
lautman wrote: I've hard-coded the indexes in this call arbitrarily to 4 (it works fine with any value 0 - 9) because if I use i, garbage ensues So the code in #1 is your debug...
Before embark the project, see this video explaining basic info about 3 phase AC. . Don't miss the 03:00 minute when he tries to measure the outlet voltage by multimeter! https://...
http://llvm.org/ wrote:Despite its name, LLVM has little to do with traditional virtual machines. The name "LLVM" itself is not an acronym; it is the full name of the...
AN-1057 worthes to remind again, is mentioned several times before in this forum. . There are also robust RS-485 ICs that can survive from wiring faults and ESD of...
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