You Are Here: Home » Posts tagged "usb"

Meet NanoPi NEO The New Hero – The 8 $ Computer

NanoPi NEO features Allwinner H3 CPU, a Quad-core Cortex-A7 Up to 1.2GHz CPU. It’s available with 256MB DDR3 RAM or 512MB one with additional 2$ for the last one.The board has 10/100M Ethernet RJ-45 jack, USB host type A connector, MicroUSB connector for data transmission and power input, one MicroSD slot, serial debug header and 36 pins for GPIO. Raspberry Pi Zero, the 5$ computer, had  Broadcom BCM2835 1G ...

Read more

Open Programmer – USB programmer for PIC, EPROM, ATMEL, SPI

Open Programmer – An open source USB programmer for PIC micros, I2C-SPI-MicroWire-OneWire-UNIO EEPROMs, some ATMEL micros, generic I2C/SPI devices and (soon) other devices. Completely free and Open Source (including firmware) Programs PIC10-12-16-18-24, dsPIC30-33, EEPROMs type 24xxxx (I2C), 25xxx (SPI), 93xx6 (MicroWire), DS24xx (OneWire), 11xxx (UNIO), some ATMEL micros, communicates with generic I2C ...

Read more

AVR ATtiny USB Tutorial Part 2

This is the second part of my USB tutorial for ATtiny2313 and V-USB library. In the first part we learned how to get 3.3V from USB to power our circuits. In this part, we will expand our setup with following parts: Larger breadboard and additional jumper wires ATtiny2313 12 MHz crystal oscillator Two 27 pF ceramic capacitors to stabilize the crystal Two 68 Ω resistors between USB data lines and the microcon ...

Read more

USB AVR programmer

I’ve already had a programmer for Atmel’s AVR microcontrollers, but I couldn’t use it in my lab, because my laptop doesn’t have a LPT port. So I decided to make a new programmer with USB connection. I’ve found an open source programmer AVR doper, and for the basis I took a modified version from the http://www.kreuzholzen.de web page. I designed a new singled sided PCB board, that I was able to make at home. ...

Read more

Weeks 11-12: AVR USB Devices and Programming

One of the relatively unexplored topics in this week’s lecture was USB, the ubiquitous protocol that allows computers to communicate with peripheral devices (containing microcontrollers). Creating a USB device allows any computer to talk to it without the specialized software and hardware we’ve been using so far. For these two weeks, I decided to understand the requirements to create USB-compatible device c ...

Read more

Atmega 32u4 Based USB Data Logger (Part 23/25)

In this project, a device will be designed that will read analog data from any analog sensor and will send the digitized form of that data to a personal computer on USB interface. On PC, a desktop application will store the data in an excel spreadsheet therefore performing the data logging. For this, the device will be configured as HID Class Device again. An HID Class device has USB communication over two ...

Read more

USB power supply active load tester

USB Power supply Active Load Tester or short PAL Tester is unit designed for testing the quality of the power supplies. Idea was to create low-cost, precise device for simultaneous measurement of Voltage and Current drawn from the device under test. This is one of my weekend projects that I have decided to release to the public. All source files can be found on projects GitHub page. Device Features: Open So ...

Read more
Scroll to top