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Can't figure out the problem with UART
I'm using the very simple Peter Fleury UART library on an ATmega168A.   The following code is being used: #define F_CPU 2500000UL #define UART_BAUD_RATE 31250...
Monday, 11 July 2016 - 16:38
Trying to burn Arduino code using Studio 7
I have messed up the firmware on a 3D printer board and I'm trying to burn the AVR using the ISP header (usually being done serially but does not work now). I start a new project...
Sunday, 3 January 2016 - 19:20
Studio 7 (7.0.634) can't see Atmel ICE debugger
I've installed the latest Studio , when I connect the the Atmel ICE I can't see anything happening however the middle LED does light up so i guess the connection is solid. I've...
Saturday, 21 November 2015 - 12:29
BJT switch speed-up capacitor + base resistor calculation?
I'm trying to drive a small DC motor using PWM from of the AVR pins. Right now I have the following setup:   The PWM freq. is around 20KHz at the moment but I'll try to go...
Tuesday, 6 October 2015 - 10:00
Data Visualizer to display UART data when UART is software implemented.
I have some code running on a TINY AVR, I've written a simple Tx library and I used it for debugging - it's all software implemented with a timer. Is there anyway I could display...
Sunday, 4 October 2015 - 22:02
A bit puzzled about external RAM chips - which one to use?!
I know some AVRs come with interfaces for 64kb of additional RAM, however I don't see a problem using around 16 IOs for interfacing in a "dirty" way to an external RAM. I need...
Friday, 2 October 2015 - 17:59
A way to find all AVRs with PLL that enable high-speed PWM?
Seems like you can't search for this parameter on Atmel's website, anyone knows how can I possible gather a list without going over all the available devices?
Thursday, 1 October 2015 - 07:37
PID control over motor PWM
I had a previous post where I tried to drive a small motor with PWM. That did not go so well and I went out and ordered some P channel MOSFETS that will allow me to control the...
Thursday, 28 May 2015 - 10:53
PWM DC Motor driving problems
I have a small DC motor which I'm trying to drive in a single direction using half of an H bridge. I don't have FETs so I used 2N5088 transistors instead. I've measured L & R...
Friday, 1 May 2015 - 19:46
LCD menu generation?
What is the usual way someone would generate menus / screens for a project using a graphics LCD?
Wednesday, 25 March 2015 - 11:11
Max input freq. for external timer clocking in Atmega168?
Can I use a 22MHz signal to clock timer2 in an Atmega168? I can divide that using the internal pre-scaler but don't know if it can handle the speed. Anyone has info on this?
Friday, 27 February 2015 - 11:36
High impedance buffer for disconnecting I2C from analog lines?
I have 3 terminals on a system that are connected to a potentiometer T1 goes to one end of the pot., T2 goes to the wiper, T3 goes to the other end. The potentiometer is 250k. In...
Sunday, 22 February 2015 - 11:48