Design Arduino Uno with microSD and Sram + libraries

€50-500 EUR

In Progress

Posted

almost 12 years ago

€50-500 EUR

Paid on delivery

I am working on a POV with 40 RGB LEDs. The LEDs are controlled by TLC drivers. This part I have working and I do have schematics as well as the library to run this. Now I want to show several images on my POV. I think internal memory is too small for let's say 50 images, therefore I am looking at microSD. Images are stored as raw data (R,G,B with every color a value between 0 and 255). I am able to read from a microSD card. I have the schematic and library for this at well if wanted. Now I need to be able to show about 300 columns per 0.25 seconds. So I need to have 1200 Hz update frequency. A picture typically exists of 40*40 pixels or 40 * 100 pixels (every pixel consists of 3 colors). So a picture consists of maximum 12000 numbers. Every column consists of 40 LEDs * 3 colors = 120 numbers [0-255]. So basically the system should be able to read and write to LED drivers 120 numbers at 1.2 kHz update frequency. I think reading a column from microSD and directly send it to LED drivers is not possible because microSD is too slow. Is this right? If microSD is not fast enough, than we should read a picture from the microSD and write it temporary to a SRAM. Then Sram should be read by column and send it to LED drivers. Or if you have a better idea? Who is able to design the ideal electric schematic for me. And who could test the various libraries together in one sketch for reading microSD, Sram and LED drivers.

Electronics

Embedded Software

Project ID: 1737326

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6 proposals

Remote project

Active 12 yrs ago

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Awarded to:

@mandeeshc

Sir, We can do it as mentioned. We understand your requirements. Regards, Mandeesh Singh

€300 EUR in 30 days

5.0

(2 reviews)

3.1

6 freelancers are bidding on average €496 EUR for this job

@MikroStar

hi, i can help.

€650 EUR in 70 days

4.8

(28 reviews)

6.2

@bulgar

Dear Sir, Your project is interesting for us. For details - in PM . Redards bulgar

€650 EUR in 20 days

5.0

(2 reviews)

4.7

@RLT

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reader and transmitter -Magnetic reader Power Electronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy simulations -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design Embedded system -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas Matlab -Power Electronics simulation -Motor drive -Wind Energy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation(TI,National, Linear Tech, Maxim libraries) -LTI -National -Matlab Very important Note: References attached. Please look excel file to see projects which we made until now! Hido

€400 EUR in 12 days