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Making a new pcb motor controller board with arduino mega inbuild in it.
I want to make new pcb for my small robot with arduino mega 2560 board. Pcb should have motor driver, bluetooth module and arduinno mega and should be less in size. I am using eagle and in can there example arduino mega...
Hello Guys,
I want to implement interrupt driven communication between pic18f4520 and sim800 module, I partially succeed but stuck at one point form one week, let me show you code first :
void main(void) {
OSCCON = 0x72; // INTOSC frequency 8MHz
TRISBbits.RB7 = 0...
Hello guys,
I am using two timers timers i.e. timer0 and timer2.
implementation code given following:
For Timer 0 :
void Timer0Setup() {
T0CON = 0x00; // using a 16 bit timer0 with pre-scaler 4
T0CONbits.PSA = 0;
TMR0H = 0x01;
TMR0L = 0x00;
T0CONbits.TMR0ON = 1...
Hello guys,
I am implementing states for connecting pic microcontroller to sim800 module.
here is the code written in main:
while (1) {
delay(2);
timeFromBoot();
if (state == 1) {
refTime = time;
checkStart();
if (checkStartsuccess ==...
hey Embedded geek,
Respect!!
I am able to communicate from pic18f4520 to sim800 modules through uart and one I2C connection is established between PIC and arduino2560 to see the received output in pic through arduino serial monitor. Basically , I am writing from pic to sim800 and then sim800...
Hello Embedded geeks,
let me tell you first what I am trying to do , I have a pic18f4520 uc, an arduino mega 2560 board , A 555 timer chip and DS1307 RTC chip .
my work desire a RTC to keep track of my states and synchronization purpose, so I thought to use RTC chip DS1307 but I didn't had...
Hello Electronics Enthusiasts ,
I am establishing I2C connection between pic18f4520 and arduino mega module. It is working fine but I checked with oscilloscope that it is delaying so much around 500ms for each bunch of instruction. I am not getting where I am doing wrong....
Here is my I2C...
Hello guys, I am trying to send AT commands to Sim800 module from Pic18f4520 and want to very my command has been send and Sim800 is responding back with an OK.
For that I made : -
>>sim800 - pic18f4520 -------- uart connection
>>pic18f4520 - Arduino mega 2560 ---------- I2C connection* (To...
Re: Stuck in ISR, RCIF is not Firing when uart with pic18f5420 and Sim800
I want to run my oscillator at 8MHz by setting OSCCON = 0x52, I am bound to use 2MHz instead. Please explain how do you think this will work, I am not getting. ....
-- Raushan
Re: Stuck in ISR, RCIF is not Firing when uart with pic18f5420 and Sim800
Thanks Brain For your valuable reply, I tried what you said--
For reference -->>
char timerInterruptFired() {
return TMR0IF & TMR0IE;
}
is already there as you suggested , so I dont think its having a multiple timer...
Re: Stuck in ISR, RCIF is not Firing when uart with pic18f5420 and Sim800
Thank you very much sir , I forgot to thanx you, now its working fine. yes it was taking way more time due to arduino printing and i need to wait for it.
Now another problem I came across -
I want to implement a...
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