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thanks for your reply
i am using TimeLib.h library and wifi library
i tried but it didnt work
yes its work and print hour value
but i need to compare hour with another value
suppose tm_hour = timeinfo.hour
if(tm_hour == LocalHour)
.....
or
if(tm_hour <= 12)
hi
i m using esp32 and its wifi library in Arduino
After getting NTP time
when i Call this function everything fine
void printLocalTime()
{
struct tm timeinfo;
if (!getLocalTime(&timeinfo))
{
Serial.println("Failed to obtain time");
TimeSuccess = false;
return;
}...
I want to make a analogue clock with stepper motor
The angle movement of stepper motor is 1.8 degree.
So 360 / 1.8 = 200 steps ... Right?
now suppose time is 10:27:38
now if I move motor every second the MINUTE needle should move very slowly and continually and after 60 seconds it should...
HI
i m making a circuit of GSM/GPRS module SIM868 according to this **broken link removed**.
but i have a problem with VRTC (backup battery).if there is rechargeable battery will module will charge it, if yes then afrer fully charge, will module auto stop it?
if module didnt charge the battery...
I was reading the datasheet of WS2813 RGB LED and i found
1) Recommended application circuit diagram:
Note: R1 is the protection resistance of the IC, which has the function of preventing power spikes and anti-reverse connection. The general value is 150R~390R. C1 is an external filter...
Hi
I am using NFC card reader
with PC its working fine. when i put NCF card on it reader send Card's ID to pc, at that time if I open notepad or any text writing place its just type that number. e.g.
I want to use it with arduino, first i want to know how to communicate with tinny85...
I used NeoPixel Stick - 8 x 5050 RGB LED with Integrated Drivers but at start the LEDs start burning
why its happened, Any idea?
the Strip use multiple Amp according to Strip Colors
is Constant -Current-Regulator necessary ?
I want to use this method first segment data, and then its color (for example 'R') then then 2nd segment then "R" and so on.....
max 1 or two color glow same time (R, G, B, RG, RB, GB, Or White), so max 7 colors
RGB all three and RGBW all 4 color will not glow
common Anode OR Common Cathode...
Hi
Now I decided to use these LEDs
TOGIALED|TOGIALED TJ-S5050UG3W5TLCRGBDW-A5|Light Emitting Diodes (LED)|LCSC
According to Datasheet
Power Dissipation .... 308 mW
Forward Current(DC) .. 30 mA
Peak Forward Current . 100 mA
Reverse Voltage ...... 5 V
Typical Electrical
Forward Voltage VF (IF...
Hi
I want to create RGB digital clock (segment height almost 4").
Any one here can tell me with LEDs drivers ICs are best?
If I use LED Strip, is that a good idea?
i need GSM/GPRS, GPS, RTC-DS3231, SD-Card all on one board.
I already used "link-it one".
If I use all features there are lot of problems and some other issues, so any other board plzzzz????
Hi
i m using GSM Module SIM 808, and i want to connect it's UART with microcontroller and PC but one at a time (PC OR microcontroller), i m designing PCB, and i want some kind of diversion or blocker that when i use microcontroller it will not damage max232 IC
Please see the picture to understand
@betwixt
Thanks so much for this kind of information that you asked, 3 clock are approx 20 feet away from arduino, 4th is 55 feet, 5th is 70 feet and 6th is approximately 120 feet, these are working fine without any driver and that was first group and second group is approximately 180 feet from...
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