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• Power:  up to 1/4W
• Material:  carbon film 
• Lead diameter:  0.55 mm
• Tolerance : 5%
• Operating Temp :  -55C – 155C

• Resistors basics
• Types of Resistors
• Resistor colour codes

• UTP
• CAT5E

• Product: SG90 Servo
• Torque: 2.0kg/cm(4.8V), 2.2kg/cm(6V)
• Speed: 0.09s/60°(4.8V), 0.08s/60°(6V)
• Rotate angle: 180°
• Operating voltage: 4.8 ~ 6V
• Gear: plastic
• Dead band: 7us
• Weight: 10.5g
• Dimension: 22.8mm × 12.2mm × 28.5mm

• Power:  up to 1/4W
• Material:  carbon film 
• Lead diameter:  0.55 mm
• Tolerance : 5%
• Operating Temp :  -55C – 155C

• UTP
• CAT5E

• Power:  up to 1/4W
• Material:  carbon film 
• Lead diameter:  0.55 mm
• Tolerance : 5%
• Operating Temp :  -55C – 155C

Please note: Due to a change in suppliers the product colour has changed from green/black to red/black as from 25/08/2024.

Just like the one's you used at school, except these one's are new and super sharp!

These low cost wire strippers are excellent for beginners and pro's alike! Spring loaded and adjustable for cable and wire up to 3mm, everyone needs a pair! By fixing the adjustable screw to the desired length (or using the strippers free hand), they can 'strip' the PVC insulation from copper wire for prototyping, breaboarding and any other electronic project you can think of! 

Features

• 5" Stripper and Cutter
• Pressed Steel Stripper for Cables up to 3mm Diameter.
• Hardened and tempered sprung steel blades.
• Red insulated handles.
• Adjustable screw controller.
• Length - 5"
• Cutting Capacity - 3mm

What's in the box?

1 x wire stripper

• Make Your Own Ethernet Cables
• Protect your cable ends with these snag free boots for RJ-45
• Helps to Keep Cables from Snags and Rips
• Extend the Life of your Cable

• Material: Rubber
• Dimensions: 27.5×15×15mm (L × W × H)
• Colour: Gray

• Quick and economical.
• Straight through configuration.
• This coupler allows two ethernet cables with RJ45 connectors to be connected together so that the signal will pass straight through.
• It is a cheap and simple way to extend network cables and is ideal for moving networked computers without uprooting existing cables.
• Single Size: Approx.34x21x16mm

What's in the box?

1 x RJ45 Straight Through Ethernet LAN Cable coupler

Cables are not included

Cat5e is currently the most commonly used in new installations. It's designed to greatly reduce crosstalk.

It basically means the Cat 5e is better at keeping signals on different circuits or channels from interfering with each other. 

Specifications

UTP Solid.
A step above Cat 5, it can handle 1000 Mbps speeds (gigabit Ethernet) at 100 MHz.

What's in the box?

Sold per meter.
Please indicate via the quantity box how many meters you would like to have.

• Power:  up to 1/4W
• Material:  carbon film 
• Lead diameter:  0.55 mm
• Tolerance : 5%
• Operating Temp :  -55C – 155C

• RJ45 Connector Modular Plug 
  
• 8 Pin Plug for UTP Cat5, Cat5e solid or stranded wire solid or stranded Cable. 
  
• Gold plated leads for better data transmitting and higher signal strength
  
• Colour: Clear

Mainly used for the power connection on to Laptop Power Supplies (Please check correct for your laptop power supply, some power supplies uses Figure 8 Power cables)

Features

- Cable can be used on electrical appliances up to 250V
- 3 pin Clover to 3-pin SA Electrical Plug

What's in the box?

1 x DEDICATED POWER CORD 

Features

• 10-bit resolution
• ± 1 LSB max DNL
• ± 1 LSB max INL
• 8 input channels
• Analog inputs programmable as single-ended or pseudo-differential pairs
• On-chip sample and hold
• SPI serial interface (modes 0,0 and 1,1)
• Single supply operation: 2.7V - 5.5V
• 200 ksps max. sampling rate at VDD=5V
• 75 ksps max. sampling rate at VDD=2.7V
• Low power CMOS technology
• 5 nA typical standby current, 2 µA max.
• 500 µA max. active current at 5V
• Industrial temp range: -40°C to 85°C

Applications

• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems

Resources

The following sample assumes that you're running the latest official Raspbian distribution, that you're logged in as root and that you haven't yet customized Raspbian to use SPI from a Python script. By default, the kernel module managing SPI communications is not loaded on Raspbian, so let's ensure that the 'spidev' device is available.

root@raspberrypi:/# lsmodModule                  Size  Used by  snd_bcm2835            12808  0  snd_pcm                74834  1 snd_bcm2835  snd_seq                52536  0  snd_timer              19698  2 snd_seq,snd_pcm  snd_seq_device          6300  1 snd_seq  snd                    52489  5 snd_seq_device,snd_timer,snd_seq,snd_pcm,snd_bcm2835  snd_page_alloc          4951  1 snd_pcm  

If 'spidev' device is not listed, we need to remove it from the kernel module 'blacklist' so that it's automatically loaded on the next boot:

root@raspberrypi:/# nano /etc/modprobe.d/raspi-blacklist.conf  

Put a hash character in front of the 'blacklist spi-bcm2708' statement and save the file:

#blacklist spi-bcm2708  

then, manually load the SPI device:

root@raspberrypi:/# modprobe spidev  

The command should just complete without returning an error. Validate the list of modules:

root@raspberrypi:/# lsmod  Module                  Size  Used by  spi_bcm2708             4401  0  spidev                  5136  0  snd_bcm2835            12808  0  snd_pcm                74834  1 snd_bcm2835  snd_seq                52536  0  snd_timer              19698  2 snd_seq,snd_pcm  snd_seq_device          6300  1 snd_seq  snd                    52489  5 snd_seq_device,snd_timer,snd_seq,snd_pcm,snd_bcm2835  snd_page_alloc          4951  1 snd_pcm  

The 'spidev' device should now be available.

Next, install the 'git' package. It will be needed to install other packages from Github.

apt-get install git-core  

Install the 'python-dev' package. It will be needed to compile the 'py-spidev' package.

apt-get install python-dev  

Download and compile the 'py-spidev' package.

root@raspberrypi:/# cd /home  root@raspberrypi:/home# git clone git://github.com/doceme/py-spidev  root@raspberrypi:/home# cd py-spidev/  root@raspberrypi:/home# python setup.py install  

At this point, SPI is available from Python 2.7. Assuming that you have wired the MCP3008 to the Raspberry Pi's SPI bus using CE0 as the 'chip select' pin, you can read all eight analog inputs using the following Python script.

root@raspberrypi:/home# nano adc.py  

Paste the script below in the editor and save it.

import spidev  import time    spi = spidev.SpiDev()  spi.open(0,0)    # read SPI data from MCP3008 chip, 8 possible adc's (0 thru 7)  def readadc(adcnum):          if ((adcnum > 7) or (adcnum < 0)):                  return -1          r = spi.xfer2([1,(8 adcnum)<<4,0])          adcout = ((r[1]&3) << 8)   r[2]          return adcoutwhile True:          for adcInput in range(0,8):                  print "ADC(", adcInput,")=", readadc(adcInput)          time.sleep(1)  

To execute the script

root@raspberrypi:/home# python adc.py  

Sample output using a 10K Ohm trimpot connected to the ADC's pin 3 and all other pins pulled down to ground using a 10k resistor.

ADC( 0 )= 0  ADC( 1 )= 0  ADC( 2 )= 0  ADC( 3 )= 507  ADC( 4 )= 0  ADC( 5 )= 0  ADC( 6 )= 0  ADC( 7 )= 0  

Credits go to Jeremy for his work on the 'py-spidev' Python module which makes working with the MCP3008 straight forward. Alternatively, checkout wiringPi's SPI functions if you prefer using a 'C' API.

Related Tutorials & Samples

• Loading I2C, SPI and 1-Wire drivers on the Raspberry Pi
• Jeremy's Blog: Raspberry Pi hardware SPI analog inputs using the MCP3008
• wiringPi 'C' API for interfacing with SPI, I2C, GPIOs and more
• Adafruit Learning System
  • Save and Graph Analog Temperature Data
  • Converting analog inputs to digital and control audio volume

These 2m Super VGA High Resolution VGA Monitor Cables are designed to a provide high quality video connection for your Raspberry Pi, PC, Laptop,  Monitor or TV. The cable is constructed using 28AWG triple mini coaxial  cables which allows them to be used for extended distances. Triple  shielded with braid, foil and drain wire. Our cables are designed for  standard monitors and widescreen LCD’s that require DDC cable.

Specifications

• Tested for Compatibility with the Raspberry Pi
• Premium 15 pin VGA/SVGA
• Male to Male Cable
• Quality cable to connect a VGA or SVGA device such as most monitors, projectors, KVM switches and some TVs, to a VGA / SVGA output on a computer.
• 28AWG Triple Shielded
• HD 15 - All Data Pins Connected
• 1.5m Long
• Black with Blue

What's in the box?

1 x VGA to VGA Cable 1.5m

Resources

• If you have a VGA monitor, you'll need a HDMI to VGA adapter and a VGA Male to Male Cable to connect your Raspberry Pi.
•  Pi ==> Adapter ==> VGA Cable ==> Monitor

• Lenght: 10cm
• Width: 9cm
• Circumference: 28cm
• Weight : 160g

• Arcade button blade type
• LENGTH: 6,2 cm
• WIDTH: 3,7 cm
• CIRCUMFERENCE: 19 cm
• WEIGHT : 40g