Brads Electronic Projects Forum

Hello everyone since this coronavirus pandemic hit the world we have been trying to find solutions for the sick by manufacturing medical equipment to detect the lack of oxygen in the blood ... so I try to make equipment using a microcontroller to measure oxygen saturation in the blood all I need is ...

It is 220pf and 0.22nf
Thank you buddy

Hello
Please can anyone help me to read the value of this capacitor?
Thank you

then now i'm very sure about diptrace

hello
yes i used wide traces
this board drive multi 5x7 matrix (i mean by multi 5x7 a journal led)
i use uv light and FecL3 for chemical etching

i agree with small trace i've always this problem

here is one of my board, this is a pcb for my journal led

sorry for late reply

hi bitfogav thank you i'm very glad to hear someone waiting to see my project
i think i'll use etching chemical first just to make my prototype and after that i'll send to manufacture

hi MrDEB thank you dude for your information i think i'll use diptrace finally

thank you bitfogav for fast reply

i hope all is fine on the forum i'm currently working on a small project 8x8 matrix led rgb and i want to make a printed circuit board for it I'm just asking you what is your pcb designer which one is the best and why i use Eagle because it is easy i can find all library microchip atmel other shift ...

for the moment i use a data base an array saved in the memory of my micro controller executed in a loop and the data is sent through the SPI hardware of PIC16F876A

let me just to finish the pcb and i'll post the source code in C

it's okay brad i'm working also on 8x8 rgb system i'm done with the hardware (1x matrix 8x8 led) (3x 74hc595) (1xULN2804A) µc i'll use 18F4620 i'll post the source code very soon 4mToiWkQESU can you tell me please if it's not secret the size of your system led game? i'm mean 8x8 or 16x16... Taylor

yes you are right the TLC5947 is very expensive instead of 74hc373 but it's easy to implement it in the board

ok man i understand it's just my idea i like the game and i think i'll buy it very soon

anyaway thank you brad about this information

Hello Brad Super pixel bros is an amazing system game 8x8 RGB and i saw video about it i'm just asking my self why you did not use one Integrated circuit instead of three(74373) to drive the 8x8 Rgb Matrix LED The way that i'm thinking for this one because we can reduce the part list, for example if...

i'm using IDE MikroC from mikroelektronika Language C but for the moment i'm interest to use C18 compiler with MpLab i've used Pic16F876A for this project just because i've the SPI Hardware available but we can use 16F84(A) and we use the SPI software but with this way the software will take 78% of ...

Hello brad I'm student in electrical engineering but i'm already a programmer using 7 different language in windows platform or linux i can code with (C,C++,C#,Delphi/Pascal,Visual Basic,Assembly,Java...) My favorite work is reversing engineering software But since two years ago i'm starting learnin...