Embedded Systems: RaspberryPi B+ and RaspberryPi 2B (until 2017)
On this page I show my activities on the RaspberryPi Model B+ and RaspberryPi 2. In my blog I tell what I actually do, so check that out frequently. All images are full-size and can be viewed in full by right-click/view image. All images are (c) me: Huub van Niekerk.
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With the serial port added, the connection to the RPi is similar as with the BB and shows like below. The next picture is a screenshot of a minicom session from the laptop to the RPi.
As a result, the schematic setup looks like this:

For the remote desktop I use TigerVNC
This is a short video about my RPi and below a picture with the RPi camera and mounted on carton.




17 February: Timing, DMA, electroniccs and more. Click the image to watch the video. See also the blog.

10 February 2017: Python, electronics, rewire & motor. Click the image to watch the video. See also the blog.

3 February 2017: Code, rewiring, motor. Click the image to watch the video. See also the blog.

27 January 2017: Code, circuit, LED, measurement. Click the image to watch the video. See also the blog.
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20 January 2017: Real circuit, frequency and C++ code. Click the image to watch the video. See also the blog.

13 January 2017: Some more simulation and the real circuit. Click the image to watch the video. See also the blog.

6 January 2017: RPi1 Measurements, pwm & electronics simulations. Click the image to watch the video. See also the blog.

30 December 2016: RPi2: Experiments with ROS. Click the image to watch the video. See also the blog.
 
RPi1: More simulations using Scilab/Xcos. Click the image to watch the video. See also the blog.

23 December 2016: Simulation in Scilab/Xcos and some tests. Click the image to watch the video. See also the blog.

16 December 2016: Resistors & frequencies. When changes what and why? Click the first image to watch the video. See also the blog.

9 December 2016: LED, resistors & frequency. Click the image to watch the video. See also the blog.

2 December 2016: Resistance, frequency & replacement. Clikc the image to watch the video. See also the blog.

25 November 2016: Frequency, rewiring & resistance. Click the image to watch the video. See also the blog.
 
18 November 2016: Frequencies, code and electronics. Click the image to watch the video. See also the blog.

11 November 2016: PWM and some code. Click the image to watch the video. See also the blog.

4 November 2016: PulseWidthModulation and voltage. Click the image to watch the video. See also the blog.

26 October 2016 Voltages and more. Click the image to watch the video. See also the blog.

21 October 2016 Motors and voltages... Click the image to watch the video. See also the blog.
16 September 2016 Another transistor oops.. an LED test and motor... Click the image to watch the video. See also the blog.

9 September 2016 Testing motor swapping transistor & LEDs... Click the image to watch the video. See also the blog.

2 September 2016 Rewiring, motor and adding LEDs and RC... Click the image to watch the video. See also the blog.

26 August 2016 Some rewiring and adding some component... Click the image to watch the video. See also the blog.

19 August 2016 The challenges are larger than expected... Click the image to watch the video. See also the blog.

12 August 2016 Back to controlling a motor by using a transistor gives some challenges. Click the image to watch the video. See also the blog.

5 August 2016 C++ against Python: Some recoding to see which way works better. Click the image to watch the video. See also the blog.

29 July 2016 C++ against Python: Some coding is needed which leads to more experimenting. Click the image to watch the video. See also the blog.

22 July 2016 C++ against Python: Some coding is needed which leads to more experimenting. Click the image to watch the video. See also the blog.

15 July 2016 C++ against Python: Using piscope to discover a problem. Click the image to watch the video. See also the blog.

8 July 2016 C++ against Python: Using a software scope to check the GPIO. Alos, trying the algorithm again after LEDs somehow work again. Click the image to watch the video. See also the blog.

1 July 2016 C++ against Python: weird behaviour goes weirder. Hardware?! See the blog and click the image to watch the video.

24 June 2016 C++ against Python, changes on the algorithm and weird behaviour. See the blog and click the image to watch the video.

17 June 2016 C++ against Python, improvements on the algorithm and wiring. Also, trying some changes on the algorithm and wiring. See the blog and click the first image to watch the video.

10 June 2016: 2 Big oopsies. See the blog and click the image the watch the video.

3 June 2016 C++ against Python, some improvements and a result. See the blog and click the image to watch the video.

27 May 2016 C++ against Python, with an unexpected result. See the blog and click the image to watch the video.

20 May 2016 All wiring completed, but some unexpected results. See the blog and click the image to watch the video.

13 May 2016 All LEDs setup, but not all as good. And with multimeter. See the blog and click the first image to watch the video.

6 May 2016 LED setup. See the blog and click the image to watch the video.

29 April 2016 Screenshot of reverse counting code using C++ See the blog and click the image to watch the video.

22 April 2016 Screenshot of reverse counting code using C++ See the blog and click the image to watch the video.

14 April 2016 Screenshot of reverse counting (code) using Python. See the blog and click the first image to watch the video.

8 April 2016 Screenshot of kill after time. See the blog and click the image to watch the video.

1 April 2016: Optimize, unclutter and time. See the blog and click the image to watch the video.

25 March 2016 Screenshot of new code comments. See the blog and click the image to watch the video.

18 March 2016 Screenshot of implementation. See the blog and click the image to watch the video.

11 March 2016 Screenshot of implementation oops. See the blog and click the image to watch the video.

4 March 2016 Binary counter from a different point and angle. See the blog and click the image to watch the video.

26 February 2016 Binary counter using the RPi camera at 320x240 resolution. See the blog and click the image to watch the video.

12 February 2016 Screenshot of the code and result at RPi side. See the blog and click the image to watch the video.

5 February 2016 Picture of the binary counter using the RPi camera. See the blog and click the image to watch the video.

29 January 2016 The 2nd LED is finally working using C++. The RPi2 now has the Serial Pi Plus as well. See the blog and click the image to watch the video.

22 January 2016 Finally, the RPi2 does control the RPi. See the blog and click the image to watch the video.

15 January 2016: C++ and Python, still inconsistencies. See the blog, also for the video.
8 January 2016: C++ and Python. Opposite effect and wiring. See the blog, also for the video.
25 December 2015 Due to the failing pull-up on pin 13, the LED keeps burning. See the blog (also for video).

18 December 2015 Second jumpwire from RPi2 added for reverse control. See the blog (also for video).

11 December 2015 Replacing the switch by a jumpwire from RPi2. See the blog (also for video).

27 November 2015 2 Flatcables: RPi and RPi2 (closest). RPi2 ready for VNC. RPi2 fully connected. RPi2 model B package. See the blog (also for video).

20 November 2015 Webcam attached to the RPi for video test. See the blog (also for video).

13 November 2015 No real picture this week, but still using C++ for the 3-bits binary counter. See the blog (also for video).

6 November 2015 Using C++ for the 3-bits binary counter. See the blog (also for video).

23 October 2015 Three LEDs with a fischertechnik switch to create an interactive/manual binary counter. See the blog (also for video).

16 October 2015 Using the same three LEDs for binary counter. See the blog (also for video).

11 September 2015 Three walking LEDs. See the blog (also for video).

4 September 2015 The setup of walking LEDs. See the blog (also for video).

28 August 2015 The setup with an RL circuit, expanded with a control LED. See the blog (also for video).

21 August 2015 The setup with 5 electrolytic capacitors in RLC circuit, expanded with a control LED. See the blog (also for video).

14 August 2015 The setup with 5 electrolytic capacitors in RLC circuit. See the blog (also for video).

7 August 2015 The setup with 5 electrolytic capacitors in RC circuit. See the blog.

29 July 2015 The circuit for semi-random blinking LEDs with red LED showing writing action. See the blog (also for video).

17 July 2015 The setup of the circuit with a red LED that indicates when GPIO pin 16 is high. See blog (also for video).

The Xcos setup of the circuit with a PNP transistor as switch to a green LED.

The Xcos simulation of the circuit with green LED before the resistor, showing 3.3 V

The Xcos simulation of the circuit with green LED between the resistor and the LED, showing ca. 0.5 V

The Xcos setup of the circuit with green LED

Addition of a buzzer

Replacing the fischertechnik wires with a flatcable

Using a breadboard

9 June 2015 With a red LED added..The improvised circuit with 50 Ohm resistor and green LED. See the blog.

5 June 2015 Reduced size image at half size. Original image at 1/8th size. See the blog.