Integrated circuit FT232R is becoming legendary and we bring you another example of FTDI USB chips usage. In praxis we often face a requirement to communicate with devices, which have serial ports RS232, RS422 and RS485. As many devices – mainly notebooks, already usually don´t have these ports, it is necessary to use a converter […]
Customer solution: Trouble-free RS232, RS422, RS485 to USB conversion Read More »
Just from pure passion to see how low-end PIC exercises AVR, I made this programmer. Basically it is STK500 port on PIC16F1825. I took this http://www.tuxgraphics.org/electronics/ … 5101.shtml one, did some clean-up, wrote new hardware layer for PIC16 and voila – new programmer is born. It was done in one evening and night, ready to
AVR programmer on PIC Read More »
New USB chip from FTDI supports the Android open accessory mode, what enables a straightforward connectivity of USB devices and saves a battery of an Android device. To connect a device to a smartphone (tablet,…) or other Android OS device via a USB is at the time possible in 2 ways – by means of
FT311 – USB communication with Android devices without drivers Read More »
A tiny 32 bit Cortex M0+ The LPC810M021FN8 is a very interesting MCU in a 8 pin DIP package, designed to replace its 8 bit counterparts, ideal for hobbyist breadboard or through-hole printed circuit board (PCB). Being such a small and limited MCU, it has met a mixed reception since its announcement by NXP. Some
Programming the LPC810M021FN8 Read More »
The Universal Serial Bus (USB) has become the connection scheme of choice for interconnecting different devices, many of them providing human interface support. Support for many different types of peripheral, which can be self- or bus-powered, calls for stringent protection for not just the target device, but also the bus itself. For example, overcurrent protection
Protecting USB From Power Surges Read More »
USBTiny-MkII SLIM programmer (AVRISP-MKII clone) supports all Attiny, Atmega, and Xmega µcontrollers. It has three programming interfaces: ISP, PDI, and TPI. It works with AvrStudio or AvrDude. Small convenient board, contains double direction voltage translator for all interfaces and working from 1,2V, jumper for target chip voltage selection 5V or 3,3V (LDO stabilizer), and status
USBTiny-MkII SLIM programmer Read More »
Working with embedded electronics, you will eventually ends up with some sensor between your hands, here I’ll show how to make a graph out of it! This project involves a light sensor, a tiny 8-pin AVR USB key with the V-USB stack, a GNU/Linux system and rrdtool. Sensors If your are working with some digital
USB Sensors with ATtiny Microcontrollers Read More »
USB OTG (On-The-Go) cable enables for example a simple connection of USB slave devices with a smartphone. As we know, USB communications operates in such a way, that a Master (Host) device (usually a PC) controls all communication on the bus and Slave devices are only able to require attention. Slave devices are all common
USB OTG – it´s better to be a master than a slave Read More »
This week we have been playing with another new product, the DipCortex. It’s an ARM Cortex M3/M0 in a 40 pin dip package and USB socket. It has two versions a NXP LPC1347 M3 and a LPC11U24 M0, the pin out roughly follows a certain range of 40pin 8bit micros. It’s perfect for quickly
DipCortex – ARM Cortex in a Dip Package with USB Read More »
This USB to serial (TTL) converter project is easy to build, it is simple and inexpensive. It is based on the PL2303SA USB to USART bridge from Prolific. The PL2303SA chip is not required an external crystal as the internal clock oscillator is continuously tuning up to USB bus frequency. Having chip in SO-8 packaging
USB to Serial Breakout Board for Prolific PL2303SA Read More »
