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Hi ,
I used this link : and got the correct output as per the pin numbers suggested in the video.. Originally I was using PC0-PC6 so, I changed the pin numbers
The LCD displays correctly for video pin connection but, when I change the pin connection over my pin connection, everything is...
Dear Vishvesh,
thank you for reply..
I would explain my pin connections again:
STM & arduino both powered via laptop port.( I would have connected the external DC supply but,I don't have it )
LCD VCC-->5V supply pin from arduino
LCD VEE-->Gnd pin from arduino (The GND pin of STM board and...
Dear andre,
Thank you for your response..
in lcd_init() the code snippet where I am enabling 8bit data mode is below:
void lcd_init()
{
delay_ms(100);
send_cmd(0x30); //sets data length = 8 bit mode
delay_ms(7);
send_cmd(0x30)...
Dear Members,
Hello all members,
I am interfacing LCD module in 8bit mode to STM32F446RE Nucleo board the connections are as below:
The pin connections(if unclear in diagram):
Control pins:
RS-->PB0
RW-->PB1
E-->PB3
8bit data pins LCD:
D0-D7-->PC0-PC7
Program Lcd.c:
#include "lcd.h"...
I have already made a buck converter for my solar panel rated at 20V ,75W panel.
I wanted to design MPPT charger and specs are:
220uH inductor toridial iron powder core I have used and usind inductor chart and online calculator have put required turns on inductor well this converter works on...
equation 1.51 in image is :
y[n]=e^jw0n
And author is comparing it with continuous time(ct) counterpart i.e e^j*w0t
**broken link removed**
you can see the file above i have some doubts in this.
1)line 5 it says : that frequency w0 has range of 0 to 2pi ? w0 is addressed as frequency also w0...
no they haven't mentioned like that.
But what i understand is may be they have modified like this:
as i wrote y[n]=e^jw0*n*ts
may be already w0*ts=w0(new value) so,
y[n]=e^jw0n
now w0 has radians as unit..
As i am going through alan.v.oppenhium book.
I understand that discrete time(dt) signal is got by sampling continuous time signals(ct).
i.e say ts is sampling period then any signal representation is x[n]=e^nts or simply x[n]=e^n.
Now in this book there are distinguishing b/w dt complex...
I found voltage drop lying from 0.1V 0.4V across the toroid inductor
- - - Updated - - -
What i was to do to test both algorithm 1)Vmpp track 2)Pmax track is that solar radiation need to be constant when testing for both i could not find favourable conditions to test both at same time so, i...
hi i designed iron powdered toroid core for 75W panel as of now with 20k switching frequency and inductance= 45uH with 35% ripple current allowed.Its yellow white colored core
Here are the pics:
And also implemented vmpp tracking algorithm solar panel voltage sits at 14.82V (as my vmpp=14.85V)...
Also i used cro to measure inductance what i did was:
I applied around 2Vp-p sine wave and connected inductor across the signal generator with most of internet sources saying that generator has internal resistance of 50 ohm and inductor resistance =1.15ohm hence using voltage didvision and...
Hi, with some updates:
The problem was i worked on breadboard all these days and breadboard supports hardly 0.5A so as connecting wires i used for my experiment.
And here and there some mistakes + multimeter faulty all lead to this delay.
As i already mentioned that my panel Vmpp=14.85V and so...
The wire thickness used for getting solar o/p to ground floor is high but, only the short connecting wires (other miscellaneous wires required for completing the circuit) are thinner and max drop is across them. Anyway if they account for some resistance they are unavoidable i need them to make...
battery charged to 13.5V.
And these tests i am doing just with mosfet and battery in series (no inductor or capacitor used)
1)mosfet 100% duty cycle panel voltage =15.66V it could be seen that the connecting wires were heating a bit with most of the drop across those short connecting wires Vds...
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