View allAll Photos Tagged gpio
OT - wired - ( not weird )
The piggyback version to the RPi Pico2 board has obvious advantages. For version with 2c87 and MC68882 all GPIO ports of the RPi Pico2 were required.
'Own' Background to the connection realization:
Preliminary data sheet for the predecessor 8087 from June 1980 and product preview for the MC68881 from 1984. (NP-358-R1)
Primarily focused on Motorola 6888x based coprocessor.
- Referring to photos on the left & right.
#maudlinmodellers 13 Nov 2018 #demo of #prototype engine startup and shutdown sequences programmed in #nodered to control a relay wired to a couple of #gpio pins on my #raspberrypi #raspberrypizerow for the 1989 #ertlmodels #mpcmodelkit #starwars #millenniumfalcon #retro #scifi #modelkit #geek #softwareengineering #softwareengineer #iot #starwarsfan #science #computerscience #moncton #newbrunswick #canada team work with @polerix
Raspberry Pi based open source 3d scanner controller electronics.
This set uses a typical A4988 stepper controller (common for 3d Printers) to turn a stepper to rotate a turntable holding a object being scanned.
Further it uses a Darlington array chip to drive a pair of line lasers (exiting to the right).
I had to double-up on capacitors (on the 5V and 12V) to meet the voltage rating specified.
Some wires are obscured by the Pi-Cobbler (Adafruit connector for a cable to a RaspberryPi at the bottom).
One important detail I descovered wiring this up, it makes use of GPIO pin 27. That isn't necessarily an issue, except that this GPIO pin was changed between Rev1 and Rev2 boards. I'm not sure you can't get the Rev1 boards to work, but the software wouldn't work out of the box.
A quick and dirty demo video to show MPTH's GPIO port can also be used for some complex tasks.
Here the MPTH is connected to a computer via a FTDI USB to Serial Cable. The computer is running a processing sketch and sending out both text and MPTH GPIO commands that change values on the GPIO port to run a Macetech ShiftBrite.
Download Processing sketch used in this demo: MPTH GPIO Demo with ShiftBrite
The PmodSSD is a two-digit seven-segment display. Users can toggle through GPIO signals which digit is currently on at a rate of 50 Hz or greater to achieve persistence-of-vision to give the effect of both digits being lit up simultaneously.
A square Lego box. The GPIO ribbon goes in through a hole cut in the top plate. There is also a slot behind that opening so that the iMac and Raspberry Pi can be removed together without the need to disconnect the GPIO cable. The opening on this side could be filled in. On the other side there is a partial opening for the USB power cable to the Pi.
Are you curious to know more about the exciting new Windows 10 IoT platform for Embedded ARM Devices? Join Daniel Lang (CTO, Toradex Inc.) as he demystifies Windows 10 IoT for you in his speaker session at the upcoming ARM TechCon 2015, one of the world’s leading platforms for system developers working on the ARM® architecture. Windows 10 IoT marks the first time in the history when the Windows OS will be simultaneously used across the entire range of computing platforms, from the smaller mobile phones to our household PCs, servers and even devices like Xbox and HoloLens. Join the 50-minute Technical Session conducted by Daniel to understand Windows 10 IoT and know about its advantages and limitations. You will also learn about the developer experience and how you can gain access to low level interfaces like GPIOs, I2C and SPI during the conference. Get your passes here: schedule.armtechcon.com/session/windows-10-iot-for-embedd...
The PmodENC is a rotary shaft encoder with an integral push-button and slide switch to provide multiple types of GPIO inputs from the user. An encoder is commonly used in freely rotating knobs to detect how many "clicks" have occurred.
The PmodSSD is a two-digit seven-segment display. Users can toggle through GPIO signals which digit is currently on at a rate of 50 Hz or greater to achieve persistence-of-vision to give the effect of both digits being lit up simultaneously.
The PmodAD1 is an analog-to-digital converter module powered by the Analog Devices AD7476A. Users can simultaneously receive 12 bits of resolution for 2 individual channels at up to 1 MSPS by communicating with the module through an interface similar to SPI.
LPC-P2138 by Olimex based on the LPC2138 microcontroller by NXP that is an ARM7TDMI architecture.
This uses the LPC2138/01 revised version of the LPC2138. Namely, this has the "fast GPIO" capability.
My new toy in the lab.
The Pmod8LD is a set of 8 high-bright LEDs that are each individually driven by a logic-level transistor.
The PmodHB5 is a 2A H-Bridge module. This module includes a header with integrated motor feedback channels with Schmitt-trigger inputs. The H-Bridge can be driven through GPIO signals.
store.digilentinc.com/pmodhb5-h-bridge-with-feedback-inputs/
Photos from Medford BLM Grants Pass Resource Area National Public Lands Day 2010. Original defacto copyright BLM 2010. Reposted to Flickr via secondary usage rights by photographer James Sowerwine.
The PmodTPH2 offers 12 external pin headers so that users can easily test the GPIO signals passing through each of the pins.
The PmodSTEP provides a four channel drive for a stepper motor via the ST L293DD. Users may wire two pairs of channels in series to drive up to 600 mA of current per channel and can view the current status of a GPIO signal through a set of user LEDs.
The PmodSWT provides users with four slides switches for up to 16 different binary logic inputs to for the attached system board.
The PmodSSD is a two-digit seven-segment display. Users can toggle through GPIO signals which digit is currently on at a rate of 50 Hz or greater to achieve persistence-of-vision to give the effect of both digits being lit up simultaneously.
A perfect trio, which make the Raspberry Pi into an extensible, powerful arduino-like platform, protecting the GPIO from harm.
The PmodENC is a rotary shaft encoder with an integral push-button and slide switch to provide multiple types of GPIO inputs from the user. An encoder is commonly used in freely rotating knobs to detect how many "clicks" have occurred.
How to secure the Raspberry Pi on the breadboard while you are testing the Lighttpd web server? Use some Blu Tack! Ok, the one I am using is the UHU patafix but you are getting the main idea! embeddedday.com
The PmodPS/2 is a module that allows users to interface PS/2 style mice or keyboards with their system. By supplying a clock signal to the Pmod, users can then receive the standard 11-bit words that are sent from the attached peripheral.
Raspberry Pi based open source 3d scanner controller electronics.
This set uses a typical A4988 stepper controller (common for 3d Printers) to turn a stepper to rotate a turntable holding a object being scanned.
Further it uses a Darlington array chip to drive a pair of line lasers (exiting to the right).
I had to double-up on capacitors (on the 5V and 12V) to meet the voltage rating specified.
Some wires are obscured by the Pi-Cobbler (Adafruit connector for a cable to a RaspberryPi at the bottom).
One important detail I descovered wiring this up, it makes use of GPIO pin 27. That isn't necessarily an issue, except that this GPIO pin was changed between Rev1 and Rev2 boards. I'm not sure you can't get the Rev1 boards to work, but the software wouldn't work out of the box.
Before trying things out with wiringPi, insulate the 5V pin to prevent accidental non +3.3V usage that may brick the chip
while(1)
{
GPIO_SetBits(GPIOE, GPIO_Pin_5 );
Delay(10);
GPIO_ResetBits(GPIOE, GPIO_Pin_5 );
Delay(100);
}
The PmodTPH2 offers 12 external pin headers so that users can easily test the GPIO signals passing through each of the pins.
The PmodR2R is resistor ladder with a R-2R resistor configuration. Users can provide 8-bits of parallel data to the module through GPIO signals. This setup teaches users the basic principles behind a Digital-to-Analog Converter.
store.digilentinc.com/pmodr2r-resistor-ladder-d-a-converter/