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Appreciate the fact that you have been inspired by my post, but I would like to see what you have done. We can help people who are stuck with a problem and need a solution, but we cannot spoon-feed people. What you are asking for is spoon feeding. Show us what you have done, where you are stuck...
Wizpic: Thanks for the nice find. Exactly this is what I'm talking about, the closed loop control :thumbsup:
Me too have the IMAX B6, got the original one from HK for US$50 (incl. shipping). Does a decent job, to keep my RC's going and the LiPo's safe.:grin:
Great to know that you had success with the project. By the way, I managed to compile the sources and eventually program the controller and build the charger, but the voltages and currents being supplied by the charger were way off. For example if you put an ammeter in series with the battery...
Even though I wrote, I'll no longer update. I decided against it, because everyone deserves to know the outcome of the project :thinker:.
So world, finally here is the schematic, user manual and the software.
Happy holidays and cheers.
eeye
The previous code of fixing the blank lines in the bitmaps with adding 0x00 to the end of the bitmaps resulted in increased ROM usage. So what I did was to go back to the old bitmaps without the 0x00 at the end, but I added the blank line in the loop. The flash usage dropped from 98.6% to 89.2%...
@zuisti : Based on your pointers I did the following changes to include a blank line in between the characters and it works :-). The red highlighted code is the change
static bitmaps1 [0x20][5] //32 characters by 5 patterns for a char as the matrix is 7x5
= {
0x32, 0x49...
Zuisti, thank you so much for your pointers regarding the "spacing of the characters" :thumbsup:. I managed to add a blank pixel column between every character. But now there is another problem, the update rate has become slow by 310uS which is resulting in jittery motion of the characters...
Zuisti, thanks for your kind words and your helpful insight.
As I said earlier, the software and hardware is still not complete, it is just bits and pieces, sewn together to give a kind of working stuff. To answer some of your questions.
(a) I'm using the PIC16F76 microcontroller (8K flash...
Zuisti, I don't understand what you mean by column scanning. What exactly is row and column scanning? Can you please explain.
Here is what I'm doing:
static bitmaps1 [0x20][5] //32 characters by 5 patterns for a char as the matrix is 7x5
= {
0x32, 0x49, 0x79, 0x41, 0x3e...
Okay, so now I have upgraded the processor, improved the power consumption (at full brightness it consumes about 150mA and the minimum is approx 17mA) see at time 5:20 on the video, improved some of the routines (coded in assembly for speed). Additionally I have used SPI instead of bit banging...
Check out the dot matrix clock that I have done recently from scratch. The display is being scanned similar to what they do on televisions (but it needs hardware support like SPI to achieve this). With this approach, there is no skewing of characters while the display is scrolling. The project...
I agree with you. Some people want to make money using other's effort. Sahu has not provided even a simple schematic, and he is posting the same question on other forums. I wonder if he even understands electrical principles 8-O He just wants the forum members to solve his problem, so that he...
Dude thanks for asking to help out. I agree with you on using YouTube. I have created an account, uploaded the video and posted the link on my website and somehow by magic, it all seems to work. So check out the video on my website and I hope it answers your questions regarding the DPSU. The...
Yes, I know I'm working on putting the file up as a PDF. I still have a long way to go to install the PDF writer, and see how to convert the word art document into a PDF that is useable. The schematics are similar to the one in Elektor :-)
Dude, you are way too fast!! Have you read the "About...
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