A 3.6 V set point is not a de-rated 4.2 V set point Both chemistries use the same four-stage profile: precharge, constant current, constant voltage, terminate on taper. Texas Instruments puts the CV point at 3.9–4.2 V for Li-ion against 3.5–3.65 V for LiFePO4, with precharge thresholds near 3.0 V and 2.0 V respectively (LiFePO4 […]
LIFEPO4 CHARGER BOARD BASED ON CN3058E Read More »
Program an AVR development board without installing any software. ExpressIDE and AVRdudess. Story ATmega32 Board Artou makes a development board with the ATmega32 processor. Like an Arduino Uno but this processor adds a PORTA that is not on the ATmega328p. We will toggle the four bright LEDs next to the programming ports. Since they are connected to PORTA pins
Program Artou ATmega32 Development Board Read More »
Another ATMEGA4808 Development Board turned out looking very well but highlighted some issues with supply and sourcing of components. Story ATMEGA4808 – An Improvement on my previous design? Or Not… When I first started playing around with the ATMEGA4808, I was impressed as well as disappointed by the Arduino Every “Clone” that I got online.
Another ATMEGA4808 Development Board Read More »
Background I’ve written dozens of programs using the Arduino IDE and using other tools like the ARM mBed toolchain. My priority for this week was to familiarize myself with avr-gcc and the Atmel libraries. Week 4 Board Programming I had already programmed my Week 4 board with the provided serial echoing program so I was
The ULN2001, ULN2002, ULN2003 and ULN2004 are high-voltage, high-current Darlington arrays each containing seven open collector Darlington pairs with common emitters. Each channel is rated at 500 mA and can withstand peak currents of 600 mA. Suppression diodes are included for inductive load driving and the inputs are pinned opposite the outputs to simplify board
ULN2003 – SEVEN DARLINGTON ARRAYS IN NEW TSSOP16 PACKAGE Read More »
Board Design For part of my final project I want to make my own USB audio recording device. So I’ll try to develop all the necessary electronics this week. I have the analog circuitry I need from inputs week. But I don’t have a board ready to go with a USB-capable microcontroller (bit-banging will not suffice,
Atmel’s AVR series of controllers is one of the most popular with student and hobbyists. Any beginner in electronics or even professionals for that matter would appreciate an excellent development board. Development boards rid the user of the tedious tasks of prototyping and debugging necessary circuitry to run an IC. So check out the 10
10 Best AVR Development Boards For Engineers And Hobbyists 2019 Read More »
Program 6 ATtiny85/13A at the same time with this custom programmer board. Description Watch the video for a better tutorial. Attiny MCUs are very popular as it is quite easy to program them and using them instead of the atmega328 chip can reduce the cost of the overall project which requires less input/outputs. So let
Multiple ATtiny85 or 13A Programmer Read More »
Introduction This tutorial provides information on the tool and the basic steps for programming the Atmel AVR microcontrollers using C. It is aimed at people who are new to this family of microcontrollers. The Atmel STK500 development board and the ATmega16 chip are used in this tutorial; however, it is easy to adopt the information
Getting Started with C Programming for the ATMEL AVR Microcontrollers Read More »
After this Instructable you should be able to program an A Ttiny85/45 with an arduino. It may sound complex but it really isn’t. After doing some research I could not find to much info on how this could be done. I however did find https://www.instructables.com/id/Program-an-ATtiny-with-Arduino/. This Instructable is my interpretation of what I learned from Randy. Step
ATtiny Programming With Arduino Read More »
