Posts made by manthan555

1. ( Arduino + ESP8266 ) + interface anything.
2. NodeMCU + interface anything.
3. Arduino Only + interface anything.

@rafitc99
I have developed so many products using Arduino IDE as Programming environment as well I preferred both.. without bootloader hex files and as well with bootloader hex files...

Only the thing is in industrial environment you must have good enough power supply source, extraordinary precautions for noise, emf, loose wirings, current capability of tracks of PCBs, upto mark use of necessary filters, components etc.

@rafitc99
Remember one thing...
For all you guys who work with software serial or hardware serial...

First and most important thing is while working with software serial... In loop remember that softwareSerial never generate interrupt while it receives any data as you can say triggers if condition... When it's turn comes it checks otherwise if condition will bypass so your target or trigger cannot be achieved....

For hardware serial always prefer to use interrupt method to get data for each character you can receive simultaneously loops runs any function or not... It's surely you can get all the data from serial... Although mcu runs any kinds of task it leaves and goes on serial interrupt...

So it's my experience and suggestions to all you guys to remeber this thing...

If you all.come across the situations that there is no provision to use hardware serial and you need to use softwareSerial then remember that your loop must have intelligence to get the data from softwareserial by if condition which does not effect other functions in loop.. kindly for RF functions which must be used in loop that can't be avoided by any delay functionality... So Millis can be helpful or timer interrupt can help you...

Thanks...

@shahidpk
Also if may possible that you change the programmer type.. just check it correctly configured or not..
I forget to say this..

@shahidpk
In simple way to say your Atmega328p is damaged somehow don't know what happened exactly but you know what's last thing you have done with it...
If you have external USBASP programmer then use sinaprog software and ARDUINO ISP programming.. use this software and just check wether it indentify your atmega328p or not...if not then surely you damaged it...
Also first thing to check is disconnect your atmega328p from Arduino and join the RX TX pins by jumper and open serial monitor and type anything and you will echo back what you have typed.. if yes then sure your atmega328p is damaged if no then your serial is crashed but may be your mcu is working but uno can't program by serial pins...

If you might think that reset is no happened then check reset pin by manually resetting by gnd to reset jumper willingly to do repeated might seem 13 led blinks if not then sure mcu is damaged...

One another thing or you can say tweak is to renew your mcu by luck of chance doing this...

Use breadboard..
Remove your atmega328p from board
Give a 16Mhz crystal externally
Connect external reset capacitor and resistor with reset circuit..
Give VCC and ground...
Connect reset properly..
If you have usb external programmer then connect it with ISP pins to atmega328p and now check it whether it identify it or not...
You can use uno board also with direct RX TX pins + reset pin + external crystal may you try it..

If all fails go to market and buy new atmega328p or UNO