Search found 273 matches

by BMS Doug
Fri Oct 13, 2017 9:10 am
Forum: Cases
Topic: Purple case
Replies: 4
Views: 1126

Re: Purple case

I would suggest finding a local 3d printing service that is willing to print in colour.
by BMS Doug
Fri Oct 13, 2017 9:04 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

So, even when sensor from the mentioned kit, connected through simple circuits on a breadboard to the Rpi is one way to go, there are (IMHO) two simpler approaches: - Arduino board + connectivity shields, - Rpi board + gpio expansion hats (analog inputs and 5v tolerant gpio's). I should also mentio...
by BMS Doug
Thu Oct 05, 2017 9:00 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

The MyPiFi GPIO expander board gives you 16 channels of I/O which could be 5V tolerant (Dave can you confirm?) That's correct, the MCP23017 IC when powered via 5v allows for 5v tolerant I/O. There's no risk of damage to your Pi due to how the I2C lines work. Since these io expander chips use i2c to...
by BMS Doug
Thu Oct 05, 2017 8:39 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

Arduino have Wifi or Ethernet modules available to convert your project to stand alone. A pre-configured breadboard should be able to handle the necessary adaptions, the circuits are pretty simple and the components fairly cheap. there aren't a lot of different configurations needed. The Raspio Anal...
by BMS Doug
Tue Oct 03, 2017 9:47 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

As I understand it the Kit was originally designed for arduino rather than Pi but can be used with the Pi with a few additional components. Here's a breakdown of parts: Joystick An analog 2-axis joystick with 2x 10K ohm pots and push button function. Connector pin descriptions are printed on the PCB...
by BMS Doug
Fri Sep 29, 2017 9:39 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

Thank you both for your great answers. They are very helpful. I think my best option is the Raspberry Pi Zero. I should have mentioned, though, that I don't mind soldering the header to the board. I just want to keep students off electronic components and soldering tasks, thus a plug'n'play-like so...
by BMS Doug
Tue Sep 26, 2017 8:57 am
Forum: Sensors
Topic: Choosing the right IoT sensor kit for a class
Replies: 14
Views: 1464

Re: Choosing the right IoT sensor kit for a class

Pi Selection: The ideal pi for IoT is the Pi zero wireless but it isn't the best Pi for learning on (Pi3 is much easier to connect initially). Fortunately you can now buy them with a pre-Soldered header. The biggest disadvantages of the Pi Zero can be fairly easily offset, a 3 port USB Hub with eth...
by BMS Doug
Thu Sep 21, 2017 8:18 am
Forum: Technical Support
Topic: LEDs
Replies: 1
Views: 227

Re: LEDs

Sadly no, If you look at the forward voltage required by those LEDs you can see that they need 3.2-3.8V, the Pi GPIO outputs 3.3V but you would need to use a current limiting resistor as the 20mA current would burn out your GPIO pin fairly quickly. Using a current limiting resistor will drop the bri...
by BMS Doug
Thu Sep 14, 2017 12:55 pm
Forum: Audio & Sound
Topic: RPi zero w/Justboom amp and touchscreen
Replies: 4
Views: 1274

Re: RPi zero w/Justboom amp and touchscreen

It looks like the Adafruit touchscreen uses GPIO 24 as the interrupt pin for the touchscreen controller.

It looks like all of the Waveshare touchscreens use GPIO 24 as well,
by BMS Doug
Wed Sep 13, 2017 8:14 am
Forum: Robotics & Automation
Topic: wireless robot car
Replies: 3
Views: 670

Re: wireless robot car

Dave wrote:Sounds like using WiFi will be your best bet, what sort of range are you looking to be able to control the robot from?
I agree, if WiFi is available (or can be installed) in the cars operating environment that would probably be the best route.