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  • Author Author: joeman
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Raspberry Pi 3 Model B Technical Specifications

imageNEW! Raspberry Pi 3 Model B
Comparison ChartFrequently Asked QuestionsUnboxing Video
40 Pin OutPi3 Video Arcade Project

 

         

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NEW! Raspberry Pi 3 Model B

   

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Key Improvements from Pi 2 Model B to Pi 3 Model B:

image Next Generation QUAD Core Broadcom BCM2837 64bit processor

image Processor speed has increased from 900MHz on Pi 2 to 1.2Ghz

image BCM43438 WiFi on board

image Bluetooth Low Energy (BLE) on board

image Upgraded switched power source up to 2.5 Amps (can now power even more powerful devices over USB ports)

 

Other Technical Specification:

image 40pin extended GPIO

image 4 x USB 2 ports

image 4 pole Stereo output and Composite video port

image Full size HDMI output

image CSI camera port for connecting the Raspberry Pi cameraRaspberry Pi camera

image DSI display port for connecting the Raspberry Pi touch screen displayRaspberry Pi touch screen display

image Micro SD port for loading your operating system and storing data

image Upgraded switched Micro USB power source (now supports up to 2.5 Amps)

image The same form factor as the Pi 2 Model BPi 2 Model B, - the only difference is the location of the onboard LEDs

  • What are the detail specs for the SD card slot?   Just SD or SDHC or SDHCxx ?

  • in reply to rdcell@141

    Roger may very well be correct that the Pi does not go that low. I have not tried it, but there are more things at play than just baud rate, if it can do 300 baud.

     

    There are also start bits, stop bits and parity settings that must match on both sides. You'll often see this denoted as 8N1, which would be 8 data bits, 1 stop bit and no parity. Check the settings on both sides and make sure they are the same.

    Most modern telecommunications programs, such as putty,  will allow you to change the values to match. If your framing is off, your data wil be garbage, even if the baud rate is the same.

     

    Also, realize the pi puts out data at ttl levels, many data communications devices expect to see levels of +12v for a 1 and -12v for a zero.

     

     

    Mike

  • in reply to rdcell@141

    IIRC, it could be that the raspberry pi hardware doesn't support those ancient low baud rates. I'm pretty sure it can't do 50, I'm pretty sure it can do 9600, but where inbetween the boundary lies, I don't remember.

     

    You could get a $2 USB-TTL serial port...

  • hello friends, i am using rpi 3 for serial communication with my communicating device which works at 300 baud rate with computer. But when i access my device with rpi 3 with putty software ( on serial port only) it gives garbage value. why is it so? please help.

  • in reply to jaydee-187

    If you break down the bus structure to bare essentials,  how do they compare or differ?

  • in reply to jaydee-187

    Yes, I do know. But I'm still not going to tell you. Not because i'm a nasty guy. People tell me I'm a nice guy. But because in "teaching class"  (*) they told me that "just telling you" is not going to make you learn efficiently.

     

    Still willing to help if for example you get stuck. You should then report: what you found where, what deductions you made from that and what you don't understand.

     

    (*) That's in the school where they teach you to ... teach.

    P.S. I'm even old enough to have built my own Z80 computer... :-) So I know a thing or two about Z80 too. If your teacher just asks about the Z80, and not for the comparison he's surely nearing his pension.

  • in reply to rew

    Hi, this is for an assignment.

    I had to research and discuss the bus structure of the ancient z80. I wanted to compare it to the new raspberry pi. However, the online resources were useless in my eyes. I looked through the cortex a53 documentation but felt slightly out of depth. I also googled bcm2837 and a53 for hours on end.

    If you do know, your assistance would be appreciated.

  • in reply to jaydee-187

    To me that sounds like terms you would learn in a computer science class. And that this is one of the assignments for that class. On another forum we have the rule that we (the other forum users) are not allowed to do your homework for you.

     

    In such a case, you'd get back the answer: What do you think? What have you already found out? The more recent raspberry pi's do not have their schematics published. But the raspberry pi 1 does. So you can look up the schematic.... What do you learn from that? What's the difference with the current raspberry pi 3?

  • Hi, does anyone know any details about the address bus, data bus and control bus?