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 […]
Meet NanoPi NEO The New Hero – The 8 $ Computer Read More »
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 & SPI devices
Open Programmer – USB programmer for PIC, EPROM, ATMEL, SPI Read More »
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
AVR ATtiny USB Tutorial Part 2 Read More »
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
USB AVR programmer Read More »
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
Weeks 11-12: AVR USB Devices and Programming Read More »
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
Atmega 32u4 Based USB Data Logger (Part 23/25) Read More »
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
USB power supply active load tester Read More »
Li-ion cells become more and more popular due to their capacity and reasonable prices. In this entry I will show how to build a simple li-ion battery charger based on MCP73831 chip. It’s a quite useful device for DYI projects,in addition its cost is only around 1,5 euro The device uses USB port as a
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FlashProg is USB base flash memory programmer to work with 3.3V serial flash memory devices. This programmer is specifically design to read, program and configure 25x series, serial flash memory devices which are commonly used to store BIOS in PC mainboards. Originally we design this project to read and program BIOS of Foxconn G31MXP mainboard.
FlashProg – USB serial flash memory programmer Read More »
USB data-acquisition modules offer good value and ease of use. Which makes them an attractive choice for manufacturing test. But before you use the modules in a manufacturing test system. You need to take steps to protect them. During manufacturing test of circuit boards or subassemblies, a defect in an assembly may result in a
Protect USB measurement circuits Read More »
