Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [pi-a]

a model of the Raspberry 1 (released 2012), without onboard ethernet and only one USB port.

Model A:

  • BCM2835 SoC (Single ARMv6 CPU and VideoCore IV GPU)
  • HDMI out (HD video and audio)
  • GPIOs
  • SD card slot for boot partition
  • 3.5mm audio out
  • micro USB 5V powered
  • Composite video out
  • 1 USB port
  • 256 MB RAM
  • NO Ethernet port
  • lower power consumption than model B
26 questions
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2 answers

What are the differences between the models A and A+?

There are minor hardware differences between Model A (as released 2012) and Model A+ (as released 2014). What are they and what things can be done with an A+ the cannot be done with the A? Does peripheral changes prevent the use of certain…
Ghanima
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votes
1 answer

GPIO pin wiring for LEDs and their resistors

I have a Raspberry Pi 1 Model A and am trying to control an LED from an app that I will be running on it. The wiring I'm planning on going with is: Even though thats a RPI 3 in the diagram above, the concept is the same: Connect the RPi to a…
smeeb
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3
votes
1 answer

Does Stretch Lite support systemd?

Rpi 1 Model A here. I would like to use a Raspbian image in my first pi project, and want to configure it to run an executable Java app (jar file) at startup. According to this article I might be able to configure this Java app as a systemd startup…
smeeb
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2
votes
2 answers

SSHing from Mac into Pi A

I have a Raspberry Pi 1 Model A, as well as a MacBook Pro (running Sierra 10.12.6), and would like to: Use a USB cable (from Mac -> RPi) to provide my RPi with power/voltage; and; and SSH into my RPi so I can do anything I'd normally do on a Linux…
smeeb
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2
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1 answer

Can Etcher be used to customize the base Raspbian image?

I was wondering if anyone in this community has used Etcher to burn OS images to a Raspberry Pi. I have a Rapberry Pi 1 Model A and would like to use Etcher to burn Raspbian Stretch Lite to it with some custom modifications: I want to start with…
smeeb
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2
votes
1 answer

How to install a nix OS once and only once

I have a Raspberry Pi 1 Model A and would like to install a *nix (probably either Raspbian or Ubuntu) OS to something (SD card, whatever) so that I only have to install it one time, and that the rpi simply needs to run that installed OS at…
smeeb
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2
votes
1 answer

How to configure a Pi model A for OTG usage (as a USB slave)

Seeing as how the model A supports OTG mode via the hardware (both the CPU and USB controller were designed for it) The USB host port inside the Pi is an On-The-Go (OTG) host as the application processor powering the Pi, BCM2835, was originally …
user2813274
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1
vote
1 answer

Turning on-off-on-off switches to normal switches and integrating with GPIO

I have the following on-off-on-off button that I purchased from Adafruit for use with my Raspberry Pi 1 Model A. I'm trying to "bypass" the "on-off-on-off" functionality, and just make it so that its an "on-off" switch/pushbutton. I believe the…
smeeb
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1
vote
2 answers

Calculating wiring and properties of a resistor for use with a pushbutton

Raspberry Pi 1 Model A here. I am planning on using this pushbutton in a hobby project that is very similar to this CamJam EduKit project. In that CamJam project link, on page 2, I see a simple wiring diagram where it shows how to wire up the…
smeeb
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vote
2 answers

RPi 1 Model A input/output pin ratings

RPi 1 Model A here. Brand new to RPi and electronics in general. I'm finding a hard time finding the exact voltage/current "ratings" for my model but the closest I could find was a comment under this question here where the comment reads: "The 8ma…
smeeb
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1
vote
3 answers

Hardware and OS Options for Quick Dev/Test Cycles on the Model A

I have a Rasperry Pi 1 Model A. I want to use it on a hobby project that will require me to have lots of dev/test cycles where I: Write some code in a higher-level language (Scala; but could be anything like Python, etc.); then Deploy the…
smeeb
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1
vote
1 answer

OS Jessie only connects SSH after machine login?

I am using Debian 8 (Jessie) on my RPi A (previously I was using wheezy). When I try to connect from Windows with BitVise SSH, it refuses and the connection times out, implying there is no such address active on the network. If I login via keyboard…
Edilson
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vote
3 answers

Checking all the specific GPIO pins if it is HIGH or LOW and putting it in a CONDITION

Can you give me an idea on how to check the statuses of specific GPIO pins if it is HIGH or LOW? My project is all about checking the statuses of GPIO pins (6 GPIO pins). I want to check all of the pins at once and send a SMS message the statuses of…
Michael Vincent Montero
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1 answer

Extracted SMS body and passing it in a condition (Python)

This is my class for checking unread messages def CheckUnreadMsgs(ser) print "Check for new messages...\n" ser.write("AT\r") time.sleep(3) line = ser.read(size = 64) print line sen.write('AT+CMGL="REC UNREAD"\r') …
Michael Vincent Montero
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0
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0 answers

USB hub is switched into USB1 mode with USB2 peripherals

I was wondering why my USB sd-cardreader operates that slow, see this benchmark: root@DietPi:~# hdparm -tT /dev/sda1 /dev/sda1: Timing cached reads: 4 MB in 2.00 seconds = 2.00 MB/sec Timing buffered disk reads: 4 MB in 3.96 seconds = …
Codebeat
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